From 5103e947b9b7ac18ddb21a04ee3486e94c6504d7 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 16 Nov 2007 11:45:54 -0500 Subject: xattr support for btrfs Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 fs/btrfs/acl.c (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c new file mode 100644 index 00000000000..aee9f0657c3 --- /dev/null +++ b/fs/btrfs/acl.c @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2007 Red Hat. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#include +#include +#include +#include +#include "ctree.h" +#include "xattr.h" + +static int btrfs_xattr_acl_access_get(struct inode *inode, const char *name, + void *value, size_t size) +{ + return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name, + value, size); +} + +static int btrfs_xattr_acl_access_set(struct inode *inode, const char *name, + const void *value, size_t size, int flags) +{ + return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name, + value, size, flags); +} + +static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name, + void *value, size_t size) +{ + return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, + name, value, size); +} + +static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name, + const void *value, size_t size, int flags) +{ + return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, + name, value, size, flags); +} + +struct xattr_handler btrfs_xattr_acl_default_handler = { + .prefix = POSIX_ACL_XATTR_DEFAULT, + .list = btrfs_xattr_generic_list, + .get = btrfs_xattr_acl_default_get, + .set = btrfs_xattr_acl_default_set, +}; + +struct xattr_handler btrfs_xattr_acl_access_handler = { + .prefix = POSIX_ACL_XATTR_ACCESS, + .list = btrfs_xattr_generic_list, + .get = btrfs_xattr_acl_access_get, + .set = btrfs_xattr_acl_access_set, +}; -- cgit v1.2.3-70-g09d2 From 1caf9342fc71d020e788a59598a44d4ea0136b36 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 19 Nov 2007 10:18:17 -0500 Subject: Btrfs: Make ACLs return EOPNOTSUPP for now There was a slight problem with ACL's returning EINVAL when you tried to set an ACL. This isn't correct, we should be returning EOPNOTSUPP, so I did a very ugly thing and just commented everybody out and made them return EOPNOTSUPP. This is only temporary, I'm going back to implement ACL's, but Chris wants to push out a release so this will suffice for now. Also Yan suggested setting reada to -1 in the delete case to enable backwards readahead, and in the listxattr case I moved path->reada = 2; to after the if (!path) check so we can avoid a possible null dereference. Thank you, Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 18 ++++++++++++++++++ fs/btrfs/xattr.c | 4 ++-- 2 files changed, 20 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index aee9f0657c3..889ba89d3f9 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -23,32 +23,50 @@ #include "ctree.h" #include "xattr.h" +/* + * FIXME: At this point this is all place holder stuff, we just return + * -EOPNOTSUPP so cp won't complain when it tries to copy over a file with an + * acl on it. + */ + static int btrfs_xattr_acl_access_get(struct inode *inode, const char *name, void *value, size_t size) { + /* return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name, value, size); + */ + return -EOPNOTSUPP; } static int btrfs_xattr_acl_access_set(struct inode *inode, const char *name, const void *value, size_t size, int flags) { + /* return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name, value, size, flags); + */ + return -EOPNOTSUPP; } static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name, void *value, size_t size) { + /* return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, name, value, size); + */ + return -EOPNOTSUPP; } static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name, const void *value, size_t size, int flags) { + /* return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, name, value, size, flags); + */ + return -EOPNOTSUPP; } struct xattr_handler btrfs_xattr_acl_default_handler = { diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index f4ac5e0bbad..984616cca25 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -302,9 +302,9 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) key.offset = 0; path = btrfs_alloc_path(); - path->reada = 2; if (!path) return -ENOMEM; + path->reada = 2; mutex_lock(&root->fs_info->fs_mutex); @@ -410,7 +410,7 @@ int btrfs_delete_xattrs(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); if (!path) return -ENOMEM; - + path->reada = -1; key.objectid = inode->i_ino; btrfs_set_key_type(&key, BTRFS_XATTR_ITEM_KEY); key.offset = (u64)-1; -- cgit v1.2.3-70-g09d2 From 744f52f997b21de2a01931f79cf6c198bf688120 Mon Sep 17 00:00:00 2001 From: Yan Date: Mon, 14 Jan 2008 13:26:08 -0500 Subject: Btrfs: Implement ACLs setting and getting ACLs are stored but not used for permission checks (yet) Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 73 ++++++++++++++++++++++++++++++++--------------------- fs/btrfs/dir-item.c | 3 +++ fs/btrfs/xattr.c | 16 +++--------- 3 files changed, 51 insertions(+), 41 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 889ba89d3f9..b4f85ebe1bd 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -22,53 +22,68 @@ #include #include "ctree.h" #include "xattr.h" +static int btrfs_xattr_set_acl(struct inode *inode, int type, + const void *value, size_t size) +{ + int ret = 0; + struct posix_acl *acl; -/* - * FIXME: At this point this is all place holder stuff, we just return - * -EOPNOTSUPP so cp won't complain when it tries to copy over a file with an - * acl on it. - */ + if (!is_owner_or_cap(inode)) + return -EPERM; + if (value) { + acl = posix_acl_from_xattr(value, size); + if (acl == NULL) { + value = NULL; + size = 0; + } else if (IS_ERR(acl)) { + ret = PTR_ERR(acl); + } else { + ret = posix_acl_valid(acl); + posix_acl_release(acl); + } + if (ret) + return ret; + } + return btrfs_xattr_set(inode, type, "", value, size, 0); +} +static int btrfs_xattr_get_acl(struct inode *inode, int type, + void *value, size_t size) +{ + return btrfs_xattr_get(inode, type, "", value, size); +} static int btrfs_xattr_acl_access_get(struct inode *inode, const char *name, void *value, size_t size) { - /* - return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name, - value, size); - */ - return -EOPNOTSUPP; + if (*name != '\0') + return -EINVAL; + return btrfs_xattr_get_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, + value, size); } - static int btrfs_xattr_acl_access_set(struct inode *inode, const char *name, const void *value, size_t size, int flags) { - /* - return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name, - value, size, flags); - */ - return -EOPNOTSUPP; + if (*name != '\0') + return -EINVAL; + return btrfs_xattr_set_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, + value, size); } - static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name, void *value, size_t size) { - /* - return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, - name, value, size); - */ - return -EOPNOTSUPP; + if (*name != '\0') + return -EINVAL; + return btrfs_xattr_get_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, + value, size); } - static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name, const void *value, size_t size, int flags) { - /* - return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, - name, value, size, flags); - */ - return -EOPNOTSUPP; + if (*name != '\0') + return -EINVAL; + return btrfs_xattr_set_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, + value, size); } - struct xattr_handler btrfs_xattr_acl_default_handler = { .prefix = POSIX_ACL_XATTR_DEFAULT, .list = btrfs_xattr_generic_list, diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c index ddbe12ae0d6..5247a9a41f0 100644 --- a/fs/btrfs/dir-item.c +++ b/fs/btrfs/dir-item.c @@ -76,6 +76,9 @@ int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); if (!path) return -ENOMEM; + if (name_len + data_len + sizeof(struct btrfs_dir_item) > + BTRFS_LEAF_DATA_SIZE(root) - sizeof(struct btrfs_item)) + return -ENOSPC; data_size = sizeof(*dir_item) + name_len + data_len; dir_item = insert_with_overflow(trans, root, path, &key, data_size, diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index 33caaf5b4b0..85ac42605f8 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -141,11 +141,6 @@ ssize_t btrfs_xattr_get(struct inode *inode, int name_index, if (!handler) return -EOPNOTSUPP; - - /* just in case... */ - if (*attr_name == '\0') - return -EINVAL; - name = get_name(attr_name, name_index); if (!name) return -ENOMEM; @@ -201,14 +196,8 @@ int btrfs_xattr_set(struct inode *inode, int name_index, struct xattr_handler *handler = btrfs_xattr_handler(name_index); char *name; int ret = 0, mod = 0; - if (!handler) return -EOPNOTSUPP; - - /* just in case... */ - if (*attr_name == '\0') - return -EINVAL; - name = get_name(attr_name, name_index); if (!name) return -ENOMEM; @@ -454,15 +443,18 @@ static int btrfs_xattr_##name##_get(struct inode *inode, \ const char *name, void *value, \ size_t size) \ { \ + if (*name == '\0') \ + return -EINVAL; \ return btrfs_xattr_get(inode, index, name, value, size); \ } \ static int btrfs_xattr_##name##_set(struct inode *inode, \ const char *name, const void *value,\ size_t size, int flags) \ { \ + if (*name == '\0') \ + return -EINVAL; \ return btrfs_xattr_set(inode, index, name, value, size, flags); \ } \ - BTRFS_XATTR_SETGET_FUNCS(security, BTRFS_XATTR_INDEX_SECURITY); BTRFS_XATTR_SETGET_FUNCS(system, BTRFS_XATTR_INDEX_SYSTEM); BTRFS_XATTR_SETGET_FUNCS(user, BTRFS_XATTR_INDEX_USER); -- cgit v1.2.3-70-g09d2 From fb4bc1e0565a842d704846005ac0ec739e608ede Mon Sep 17 00:00:00 2001 From: Yan Date: Thu, 17 Jan 2008 11:59:51 -0500 Subject: Btrfs: Fix compile on 2.6.22 kernel This patch fixes compile error on kernel-2.6.22 Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 5 +++++ fs/btrfs/inode.c | 5 +++-- 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index b4f85ebe1bd..27bb841fafe 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -22,6 +22,11 @@ #include #include "ctree.h" #include "xattr.h" +#ifndef is_owner_or_cap +#define is_owner_or_cap(inode) \ + ((current->fsuid == (inode)->i_uid) || capable(CAP_FOWNER)) +#endif + static int btrfs_xattr_set_acl(struct inode *inode, int type, const void *value, size_t size) { diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index c1ac0bcbb46..51fc06dc4a5 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2322,15 +2322,16 @@ static int create_snapshot(struct btrfs_root *root, char *name, int namelen) ret = -ENOMEM; goto fail_unlock; } - pending_snapshot->name = kstrndup(name, namelen, GFP_NOFS); + pending_snapshot->name = kmalloc(namelen + 1, GFP_NOFS); if (!pending_snapshot->name) { ret = -ENOMEM; kfree(pending_snapshot); goto fail_unlock; } + memcpy(pending_snapshot->name, name, namelen); + pending_snapshot->name[namelen] = '\0'; trans = btrfs_start_transaction(root, 1); BUG_ON(!trans); - pending_snapshot->root = root; list_add(&pending_snapshot->list, &trans->transaction->pending_snapshots); -- cgit v1.2.3-70-g09d2 From c1e32da616a17813f11b701a7a87775d35c12e3a Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Tue, 22 Jan 2008 12:46:56 -0500 Subject: Btrfs: Include sched.h in the acl code for current (fixes compile on 2.6.23) Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 27bb841fafe..ff0fcc72848 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "ctree.h" #include "xattr.h" #ifndef is_owner_or_cap -- cgit v1.2.3-70-g09d2 From 33268eaf0b3db5e2bd12c0ada81a8e8f87a46d68 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Thu, 24 Jul 2008 12:16:36 -0400 Subject: Btrfs: Add ACL support Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 296 +++++++++++++++++++++++++++++++++++++++++++------ fs/btrfs/btrfs_inode.h | 3 + fs/btrfs/ctree.h | 7 ++ fs/btrfs/inode.c | 42 ++++++- fs/btrfs/super.c | 9 +- fs/btrfs/xattr.c | 26 +++-- 6 files changed, 335 insertions(+), 48 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index ff0fcc72848..b192659b4f5 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -20,76 +20,302 @@ #include #include #include +#include #include + #include "ctree.h" +#include "btrfs_inode.h" #include "xattr.h" -#ifndef is_owner_or_cap -#define is_owner_or_cap(inode) \ - ((current->fsuid == (inode)->i_uid) || capable(CAP_FOWNER)) -#endif + +static void btrfs_update_cached_acl(struct inode *inode, + struct posix_acl **p_acl, + struct posix_acl *acl) +{ + spin_lock(&inode->i_lock); + if (*p_acl && *p_acl != BTRFS_ACL_NOT_CACHED) + posix_acl_release(*p_acl); + *p_acl = posix_acl_dup(acl); + spin_unlock(&inode->i_lock); +} + +static struct posix_acl *btrfs_get_acl(struct inode *inode, int type) +{ + int size, name_index; + char *value = NULL; + struct posix_acl *acl = NULL, **p_acl; + + switch (type) { + case ACL_TYPE_ACCESS: + name_index = BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS; + p_acl = &BTRFS_I(inode)->i_acl; + break; + case ACL_TYPE_DEFAULT: + name_index = BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT; + p_acl = &BTRFS_I(inode)->i_default_acl; + break; + default: + return ERR_PTR(-EINVAL); + } + + spin_lock(&inode->i_lock); + if (*p_acl != BTRFS_ACL_NOT_CACHED) + acl = posix_acl_dup(*p_acl); + spin_unlock(&inode->i_lock); + + if (acl) + return acl; + + + size = btrfs_xattr_get(inode, name_index, "", NULL, 0); + if (size > 0) { + value = kzalloc(size, GFP_NOFS); + if (!value) + return ERR_PTR(-ENOMEM); + size = btrfs_xattr_get(inode, name_index, "", value, size); + if (size > 0) { + acl = posix_acl_from_xattr(value, size); + btrfs_update_cached_acl(inode, p_acl, acl); + } + kfree(value); + } else if (size == -ENOENT) { + acl = NULL; + btrfs_update_cached_acl(inode, p_acl, acl); + } + + return acl; +} + +static int btrfs_xattr_get_acl(struct inode *inode, int type, + void *value, size_t size) +{ + struct posix_acl *acl; + int ret = 0; + + acl = btrfs_get_acl(inode, type); + + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl == NULL) + return -ENODATA; + ret = posix_acl_to_xattr(acl, value, size); + posix_acl_release(acl); + + return ret; +} + +/* + * Needs to be called with fs_mutex held + */ +static int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) +{ + int ret, name_index = 0, size = 0; + struct posix_acl **p_acl; + char *value = NULL; + mode_t mode; + + if (acl) { + ret = posix_acl_valid(acl); + if (ret < 0) + return ret; + ret = 0; + } + + switch (type) { + case ACL_TYPE_ACCESS: + mode = inode->i_mode; + ret = posix_acl_equiv_mode(acl, &mode); + if (ret < 0) + return ret; + ret = 0; + inode->i_mode = mode; + name_index = BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS; + p_acl = &BTRFS_I(inode)->i_acl; + break; + case ACL_TYPE_DEFAULT: + if (!S_ISDIR(inode->i_mode)) + return acl ? -EINVAL : 0; + name_index = BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT; + p_acl = &BTRFS_I(inode)->i_default_acl; + break; + default: + return -EINVAL; + } + + if (acl) { + size = posix_acl_xattr_size(acl->a_count); + value = kmalloc(size, GFP_NOFS); + if (!value) { + ret = -ENOMEM; + goto out; + } + + ret = posix_acl_to_xattr(acl, value, size); + if (ret < 0) + goto out; + } + + ret = btrfs_xattr_set(inode, name_index, "", value, size, 0); + +out: + if (value) + kfree(value); + + if (!ret) + btrfs_update_cached_acl(inode, p_acl, acl); + + return ret; +} static int btrfs_xattr_set_acl(struct inode *inode, int type, const void *value, size_t size) { int ret = 0; - struct posix_acl *acl; + struct posix_acl *acl = NULL; - if (!is_owner_or_cap(inode)) - return -EPERM; if (value) { acl = posix_acl_from_xattr(value, size); if (acl == NULL) { value = NULL; size = 0; } else if (IS_ERR(acl)) { - ret = PTR_ERR(acl); - } else { - ret = posix_acl_valid(acl); - posix_acl_release(acl); + return PTR_ERR(acl); } - if (ret) - return ret; } - return btrfs_xattr_set(inode, type, "", value, size, 0); -} -static int btrfs_xattr_get_acl(struct inode *inode, int type, - void *value, size_t size) -{ - return btrfs_xattr_get(inode, type, "", value, size); + ret = btrfs_set_acl(inode, acl, type); + + posix_acl_release(acl); + + return ret; } + + static int btrfs_xattr_acl_access_get(struct inode *inode, const char *name, void *value, size_t size) { - if (*name != '\0') - return -EINVAL; - return btrfs_xattr_get_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, - value, size); + return btrfs_xattr_get_acl(inode, ACL_TYPE_ACCESS, value, size); } + static int btrfs_xattr_acl_access_set(struct inode *inode, const char *name, const void *value, size_t size, int flags) { - if (*name != '\0') - return -EINVAL; - return btrfs_xattr_set_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, - value, size); + return btrfs_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size); } + static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name, void *value, size_t size) { - if (*name != '\0') - return -EINVAL; - return btrfs_xattr_get_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, - value, size); + return btrfs_xattr_get_acl(inode, ACL_TYPE_DEFAULT, value, size); } + static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name, const void *value, size_t size, int flags) { - if (*name != '\0') - return -EINVAL; - return btrfs_xattr_set_acl(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, - value, size); + return btrfs_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size); +} + +int btrfs_check_acl(struct inode *inode, int mask) +{ + struct posix_acl *acl; + int error = -EAGAIN; + + acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS); + + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl) { + error = posix_acl_permission(inode, acl, mask); + posix_acl_release(acl); + } + + return error; +} + +/* + * btrfs_init_acl is already generally called under fs_mutex, so the locking + * stuff has been fixed to work with that. If the locking stuff changes, we + * need to re-evaluate the acl locking stuff. + */ +int btrfs_init_acl(struct inode *inode, struct inode *dir) +{ + struct posix_acl *acl = NULL; + int ret = 0; + + /* this happens with subvols */ + if (!dir) + return 0; + + if (!S_ISLNK(inode->i_mode)) { + if (IS_POSIXACL(dir)) { + acl = btrfs_get_acl(dir, ACL_TYPE_DEFAULT); + if (IS_ERR(acl)) + return PTR_ERR(acl); + } + + if (!acl) + inode->i_mode &= ~current->fs->umask; + } + + if (IS_POSIXACL(dir) && acl) { + struct posix_acl *clone; + mode_t mode; + + if (S_ISDIR(inode->i_mode)) { + ret = btrfs_set_acl(inode, acl, ACL_TYPE_DEFAULT); + if (ret) + goto failed; + } + clone = posix_acl_clone(acl, GFP_NOFS); + ret = -ENOMEM; + if (!clone) + goto failed; + + mode = inode->i_mode; + ret = posix_acl_create_masq(clone, &mode); + if (ret >= 0) { + inode->i_mode = mode; + if (ret > 0) { + /* we need an acl */ + ret = btrfs_set_acl(inode, clone, + ACL_TYPE_ACCESS); + } + } + } +failed: + posix_acl_release(acl); + + return ret; +} + +int btrfs_acl_chmod(struct inode *inode) +{ + struct posix_acl *acl, *clone; + int ret = 0; + + if (S_ISLNK(inode->i_mode)) + return -EOPNOTSUPP; + + if (!IS_POSIXACL(inode)) + return 0; + + acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS); + if (IS_ERR(acl) || !acl) + return PTR_ERR(acl); + + clone = posix_acl_clone(acl, GFP_KERNEL); + posix_acl_release(acl); + if (!clone) + return -ENOMEM; + + ret = posix_acl_chmod_masq(clone, inode->i_mode); + if (!ret) + ret = btrfs_set_acl(inode, clone, ACL_TYPE_ACCESS); + + posix_acl_release(clone); + + return ret; } + struct xattr_handler btrfs_xattr_acl_default_handler = { .prefix = POSIX_ACL_XATTR_DEFAULT, .list = btrfs_xattr_generic_list, diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index b7bd60e4fdd..9f2a4ef944a 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -36,6 +36,9 @@ struct btrfs_inode { struct inode vfs_inode; struct btrfs_ordered_inode_tree ordered_tree; + struct posix_acl *i_acl; + struct posix_acl *i_default_acl; + /* * transid of the trans_handle that last modified this inode */ diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 53d315bdd16..f87d7263f2d 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -42,6 +42,8 @@ struct btrfs_ordered_sum; #define BTRFS_MAGIC "_B5RfS_M" +#define BTRFS_ACL_NOT_CACHED ((void *)-1) + #ifdef CONFIG_LOCKDEP # define BTRFS_MAX_LEVEL 7 #else @@ -1694,4 +1696,9 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size); u64 btrfs_parse_size(char *str); int btrfs_parse_options(struct btrfs_root *root, char *options); int btrfs_sync_fs(struct super_block *sb, int wait); + +/* acl.c */ +int btrfs_check_acl(struct inode *inode, int mask); +int btrfs_init_acl(struct inode *inode, struct inode *dir); +int btrfs_acl_chmod(struct inode *inode); #endif diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 8d371d6fe55..2d8853543a7 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -36,6 +36,7 @@ #include #include #include +#include #include "ctree.h" #include "disk-io.h" #include "transaction.h" @@ -1478,6 +1479,9 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr) } out: err = inode_setattr(inode, attr); + + if (!err && ((attr->ia_valid & ATTR_MODE))) + err = btrfs_acl_chmod(inode); fail: return err; } @@ -2184,6 +2188,12 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry, if (IS_ERR(inode)) goto out_unlock; + err = btrfs_init_acl(inode, dir); + if (err) { + drop_inode = 1; + goto out_unlock; + } + btrfs_set_trans_block_group(trans, inode); err = btrfs_add_nondir(trans, dentry, inode, 0); if (err) @@ -2239,6 +2249,12 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry, if (IS_ERR(inode)) goto out_unlock; + err = btrfs_init_acl(inode, dir); + if (err) { + drop_inode = 1; + goto out_unlock; + } + btrfs_set_trans_block_group(trans, inode); err = btrfs_add_nondir(trans, dentry, inode, 0); if (err) @@ -2366,6 +2382,11 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) } drop_on_err = 1; + + err = btrfs_init_acl(inode, dir); + if (err) + goto out_fail; + inode->i_op = &btrfs_dir_inode_operations; inode->i_fop = &btrfs_dir_file_operations; btrfs_set_trans_block_group(trans, inode); @@ -3023,6 +3044,8 @@ struct inode *btrfs_alloc_inode(struct super_block *sb) return NULL; ei->last_trans = 0; btrfs_ordered_inode_tree_init(&ei->ordered_tree); + ei->i_acl = BTRFS_ACL_NOT_CACHED; + ei->i_default_acl = BTRFS_ACL_NOT_CACHED; return &ei->vfs_inode; } @@ -3032,6 +3055,13 @@ void btrfs_destroy_inode(struct inode *inode) WARN_ON(!list_empty(&inode->i_dentry)); WARN_ON(inode->i_data.nrpages); + if (BTRFS_I(inode)->i_acl && + BTRFS_I(inode)->i_acl != BTRFS_ACL_NOT_CACHED) + posix_acl_release(BTRFS_I(inode)->i_acl); + if (BTRFS_I(inode)->i_default_acl && + BTRFS_I(inode)->i_default_acl != BTRFS_ACL_NOT_CACHED) + posix_acl_release(BTRFS_I(inode)->i_default_acl); + while(1) { ordered = btrfs_lookup_first_ordered_extent(inode, (u64)-1); if (!ordered) @@ -3230,6 +3260,12 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry, if (IS_ERR(inode)) goto out_unlock; + err = btrfs_init_acl(inode, dir); + if (err) { + drop_inode = 1; + goto out_unlock; + } + btrfs_set_trans_block_group(trans, inode); err = btrfs_add_nondir(trans, dentry, inode, 0); if (err) @@ -3310,7 +3346,7 @@ static int btrfs_permission(struct inode *inode, int mask, { if (btrfs_test_flag(inode, READONLY) && (mask & MAY_WRITE)) return -EACCES; - return generic_permission(inode, mask, NULL); + return generic_permission(inode, mask, btrfs_check_acl); } static struct inode_operations btrfs_dir_inode_operations = { @@ -3392,6 +3428,10 @@ static struct inode_operations btrfs_special_inode_operations = { .getattr = btrfs_getattr, .setattr = btrfs_setattr, .permission = btrfs_permission, + .setxattr = generic_setxattr, + .getxattr = generic_getxattr, + .listxattr = btrfs_listxattr, + .removexattr = generic_removexattr, }; static struct inode_operations btrfs_symlink_inode_operations = { .readlink = generic_readlink, diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 4cb6aac5122..a6a418b6894 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -68,7 +68,7 @@ static void btrfs_put_super (struct super_block * sb) enum { Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, - Opt_ssd, Opt_thread_pool, Opt_err, + Opt_ssd, Opt_thread_pool, Opt_noacl, Opt_err, }; static match_table_t tokens = { @@ -83,7 +83,8 @@ static match_table_t tokens = { {Opt_alloc_start, "alloc_start=%s"}, {Opt_thread_pool, "thread_pool=%d"}, {Opt_ssd, "ssd"}, - {Opt_err, NULL} + {Opt_noacl, "noacl"}, + {Opt_err, NULL}, }; u64 btrfs_parse_size(char *str) @@ -215,6 +216,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) info->alloc_start); } break; + case Opt_noacl: + root->fs_info->sb->s_flags &= ~MS_POSIXACL; + break; default: break; } @@ -301,6 +305,7 @@ static int btrfs_fill_super(struct super_block * sb, sb->s_op = &btrfs_super_ops; sb->s_xattr = btrfs_xattr_handlers; sb->s_time_gran = 1; + sb->s_flags |= MS_POSIXACL; tree_root = open_ctree(sb, fs_devices, (char *)data); diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index 6730b595884..121c9550314 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -26,25 +26,27 @@ #include "transaction.h" #include "xattr.h" #include "disk-io.h" + static struct xattr_handler *btrfs_xattr_handler_map[] = { [BTRFS_XATTR_INDEX_USER] = &btrfs_xattr_user_handler, #ifdef CONFIG_FS_POSIX_ACL -// [BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS] = &btrfs_xattr_acl_access_handler, -// [BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT] = &btrfs_xattr_acl_default_handler, + [BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS] = &btrfs_xattr_acl_access_handler, + [BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT] = &btrfs_xattr_acl_default_handler, #endif [BTRFS_XATTR_INDEX_TRUSTED] = &btrfs_xattr_trusted_handler, [BTRFS_XATTR_INDEX_SECURITY] = &btrfs_xattr_security_handler, -// [BTRFS_XATTR_INDEX_SYSTEM] = &btrfs_xattr_system_handler, + [BTRFS_XATTR_INDEX_SYSTEM] = &btrfs_xattr_system_handler, }; + struct xattr_handler *btrfs_xattr_handlers[] = { &btrfs_xattr_user_handler, #ifdef CONFIG_FS_POSIX_ACL -// &btrfs_xattr_acl_access_handler, -// &btrfs_xattr_acl_default_handler, + &btrfs_xattr_acl_access_handler, + &btrfs_xattr_acl_default_handler, #endif &btrfs_xattr_trusted_handler, &btrfs_xattr_security_handler, -// &btrfs_xattr_system_handler, + &btrfs_xattr_system_handler, NULL, }; @@ -237,10 +239,14 @@ int btrfs_xattr_set(struct inode *inode, int name_index, mod = 1; goto out; } - } else if (flags & XATTR_REPLACE) { - /* we couldn't find the attr to replace, so error out */ - ret = -ENODATA; - goto out; + } else { + btrfs_release_path(root, path); + + if (flags & XATTR_REPLACE) { + /* we couldn't find the attr to replace */ + ret = -ENODATA; + goto out; + } } /* ok we have to create a completely new xattr */ -- cgit v1.2.3-70-g09d2 From eab922ec8907b8c506e799785e7e2d16eabe50e4 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Thu, 28 Aug 2008 06:21:15 -0400 Subject: Btrfs: compile when posix acl's are disabled This patch makes btrfs so it will compile properly when acls are disabled. I tested this and it worked with CONFIG_FS_POSIX_ACL off and on. Signed-off-by: Chris Mason --- fs/btrfs/Makefile | 3 +-- fs/btrfs/acl.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile index 8213bba1de9..3a01065d4ef 100644 --- a/fs/btrfs/Makefile +++ b/fs/btrfs/Makefile @@ -7,9 +7,8 @@ btrfs-y := super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \ transaction.o bit-radix.o inode.o file.o tree-defrag.o \ extent_map.o sysfs.o struct-funcs.o xattr.o ordered-data.o \ extent_io.o volumes.o async-thread.o ioctl.o locking.o orphan.o \ - ref-cache.o export.o + ref-cache.o acl.o export.o -btrfs-$(CONFIG_FS_POSIX_ACL) += acl.o else # Normal Makefile diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index b192659b4f5..b95147ef1c7 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -27,6 +27,8 @@ #include "btrfs_inode.h" #include "xattr.h" +#ifdef CONFIG_FS_POSIX_ACL + static void btrfs_update_cached_acl(struct inode *inode, struct posix_acl **p_acl, struct posix_acl *acl) @@ -329,3 +331,22 @@ struct xattr_handler btrfs_xattr_acl_access_handler = { .get = btrfs_xattr_acl_access_get, .set = btrfs_xattr_acl_access_set, }; + +#else /* CONFIG_FS_POSIX_ACL */ + +int btrfs_acl_chmod(struct inode *inode) +{ + return 0; +} + +int btrfs_init_acl(struct inode *inode, struct inode *dir) +{ + return 0; +} + +int btrfs_check_acl(struct inode *inode, int mask) +{ + return 0; +} + +#endif /* CONFIG_FS_POSIX_ACL */ -- cgit v1.2.3-70-g09d2 From eaa47d8612783807ef9703ebc9bf0d0f0455bf62 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 28 Aug 2008 06:21:16 -0400 Subject: btrfs: optmize listxattr The ->list handler is really not useful at all, because we always call btrfs_xattr_generic_list anyway. After this is done find_btrfs_xattr_handler becomes unused, and it becomes obvious that the temporary name buffer allocation isn't needed but we can directly copy into the supplied buffer. Tested with various getfattr -d calls on varying xattr lists. Signed-off-by: Christoph Hellwig Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 2 -- fs/btrfs/xattr.c | 82 ++++++++------------------------------------------------ fs/btrfs/xattr.h | 8 ------ 3 files changed, 11 insertions(+), 81 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index b95147ef1c7..2f865311460 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -320,14 +320,12 @@ int btrfs_acl_chmod(struct inode *inode) struct xattr_handler btrfs_xattr_acl_default_handler = { .prefix = POSIX_ACL_XATTR_DEFAULT, - .list = btrfs_xattr_generic_list, .get = btrfs_xattr_acl_default_get, .set = btrfs_xattr_acl_default_set, }; struct xattr_handler btrfs_xattr_acl_access_handler = { .prefix = POSIX_ACL_XATTR_ACCESS, - .list = btrfs_xattr_generic_list, .get = btrfs_xattr_acl_access_get, .set = btrfs_xattr_acl_access_set, }; diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index 121c9550314..fdfece41dd1 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -50,35 +50,6 @@ struct xattr_handler *btrfs_xattr_handlers[] = { NULL, }; -/* - * @param name - the xattr name - * @return - the xattr_handler for the xattr, NULL if its not found - * - * use this with listxattr where we don't already know the type of xattr we - * have - */ -static struct xattr_handler *find_btrfs_xattr_handler(struct extent_buffer *l, - unsigned long name_ptr, - u16 name_len) -{ - struct xattr_handler *handler = NULL; - int i = 0; - - for (handler = btrfs_xattr_handlers[i]; handler != NULL; i++, - handler = btrfs_xattr_handlers[i]) { - u16 prefix_len = strlen(handler->prefix); - - if (name_len < prefix_len) - continue; - - if (memcmp_extent_buffer(l, handler->prefix, name_ptr, - prefix_len) == 0) - break; - } - - return handler; -} - /* * @param name_index - the index for the xattr handler * @return the xattr_handler if we found it, NULL otherwise @@ -118,19 +89,6 @@ static inline char *get_name(const char *name, int name_index) return ret; } -size_t btrfs_xattr_generic_list(struct inode *inode, char *list, - size_t list_size, const char *name, - size_t name_len) -{ - if (list && (name_len+1) <= list_size) { - memcpy(list, name, name_len); - list[name_len] = '\0'; - } else - return -ERANGE; - - return name_len+1; -} - ssize_t btrfs_xattr_get(struct inode *inode, int name_index, const char *attr_name, void *buffer, size_t size) { @@ -278,11 +236,10 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) struct btrfs_item *item; struct extent_buffer *leaf; struct btrfs_dir_item *di; - struct xattr_handler *handler; int ret = 0, slot, advance; - size_t total_size = 0, size_left = size, written; + size_t total_size = 0, size_left = size; unsigned long name_ptr; - char *name; + size_t name_len; u32 nritems; /* @@ -344,37 +301,24 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) di = btrfs_item_ptr(leaf, slot, struct btrfs_dir_item); - total_size += btrfs_dir_name_len(leaf, di)+1; + name_len = btrfs_dir_name_len(leaf, di); + total_size += name_len + 1; /* we are just looking for how big our buffer needs to be */ if (!size) continue; - /* find our handler for this xattr */ - name_ptr = (unsigned long)(di + 1); - handler = find_btrfs_xattr_handler(leaf, name_ptr, - btrfs_dir_name_len(leaf, di)); - if (!handler) { - printk(KERN_ERR "btrfs: unsupported xattr found\n"); - continue; - } - - name = kmalloc(btrfs_dir_name_len(leaf, di), GFP_KERNEL); - read_extent_buffer(leaf, name, name_ptr, - btrfs_dir_name_len(leaf, di)); - - /* call the list function associated with this xattr */ - written = handler->list(inode, buffer, size_left, name, - btrfs_dir_name_len(leaf, di)); - kfree(name); - - if (written < 0) { + if (!buffer || (name_len + 1) > size_left) { ret = -ERANGE; break; } - size_left -= written; - buffer += written; + name_ptr = (unsigned long)(di + 1); + read_extent_buffer(leaf, buffer, name_ptr, name_len); + buffer[name_len] = '\0'; + + size_left -= name_len + 1; + buffer += name_len + 1; } ret = total_size; @@ -412,28 +356,24 @@ BTRFS_XATTR_SETGET_FUNCS(trusted, BTRFS_XATTR_INDEX_TRUSTED); struct xattr_handler btrfs_xattr_security_handler = { .prefix = XATTR_SECURITY_PREFIX, - .list = btrfs_xattr_generic_list, .get = btrfs_xattr_security_get, .set = btrfs_xattr_security_set, }; struct xattr_handler btrfs_xattr_system_handler = { .prefix = XATTR_SYSTEM_PREFIX, - .list = btrfs_xattr_generic_list, .get = btrfs_xattr_system_get, .set = btrfs_xattr_system_set, }; struct xattr_handler btrfs_xattr_user_handler = { .prefix = XATTR_USER_PREFIX, - .list = btrfs_xattr_generic_list, .get = btrfs_xattr_user_get, .set = btrfs_xattr_user_set, }; struct xattr_handler btrfs_xattr_trusted_handler = { .prefix = XATTR_TRUSTED_PREFIX, - .list = btrfs_xattr_generic_list, .get = btrfs_xattr_trusted_get, .set = btrfs_xattr_trusted_set, }; diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h index b2e47e3f244..825e55bd496 100644 --- a/fs/btrfs/xattr.h +++ b/fs/btrfs/xattr.h @@ -47,12 +47,4 @@ ssize_t btrfs_xattr_get(struct inode *inode, int name_index, const char *name, int btrfs_xattr_set(struct inode *inode, int name_index, const char *name, const void *value, size_t size, int flags); -/* - * the only reason this is public is for acl.c. There may be a point where - * acl.c doesn't need it, and if thats the case we need to remove it and make - * it static in xattr.c - */ -size_t btrfs_xattr_generic_list(struct inode *inode, char *list, - size_t list_size, const char *name, - size_t name_len); #endif /* __XATTR__ */ -- cgit v1.2.3-70-g09d2 From 95819c05732c511338b43c115ffbcee978c02888 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 28 Aug 2008 06:21:17 -0400 Subject: Btrfs: optimize btrget/set/removexattr btrfs actually stores the whole xattr name, including the prefix ondisk, so using the generic resolver that strips off the prefix is not very helpful. Instead do the real ondisk xattrs manually and only use the generic resolver for synthetic xattrs like ACLs. (Sorry Josef for guiding you towards the wrong direction here intially) Signed-off-by: Christoph Hellwig Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 20 +++--- fs/btrfs/inode.c | 19 +++--- fs/btrfs/xattr.c | 204 ++++++++++++++++++++----------------------------------- fs/btrfs/xattr.h | 31 +++------ 4 files changed, 104 insertions(+), 170 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 2f865311460..867eaf1f8ef 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -42,17 +42,18 @@ static void btrfs_update_cached_acl(struct inode *inode, static struct posix_acl *btrfs_get_acl(struct inode *inode, int type) { - int size, name_index; + int size; + const char *name; char *value = NULL; struct posix_acl *acl = NULL, **p_acl; switch (type) { case ACL_TYPE_ACCESS: - name_index = BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS; + name = POSIX_ACL_XATTR_ACCESS; p_acl = &BTRFS_I(inode)->i_acl; break; case ACL_TYPE_DEFAULT: - name_index = BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT; + name = POSIX_ACL_XATTR_DEFAULT; p_acl = &BTRFS_I(inode)->i_default_acl; break; default: @@ -68,12 +69,12 @@ static struct posix_acl *btrfs_get_acl(struct inode *inode, int type) return acl; - size = btrfs_xattr_get(inode, name_index, "", NULL, 0); + size = __btrfs_getxattr(inode, name, "", 0); if (size > 0) { value = kzalloc(size, GFP_NOFS); if (!value) return ERR_PTR(-ENOMEM); - size = btrfs_xattr_get(inode, name_index, "", value, size); + size = __btrfs_getxattr(inode, name, value, size); if (size > 0) { acl = posix_acl_from_xattr(value, size); btrfs_update_cached_acl(inode, p_acl, acl); @@ -110,7 +111,8 @@ static int btrfs_xattr_get_acl(struct inode *inode, int type, */ static int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) { - int ret, name_index = 0, size = 0; + int ret, size = 0; + const char *name; struct posix_acl **p_acl; char *value = NULL; mode_t mode; @@ -130,13 +132,13 @@ static int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) return ret; ret = 0; inode->i_mode = mode; - name_index = BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS; + name = POSIX_ACL_XATTR_ACCESS; p_acl = &BTRFS_I(inode)->i_acl; break; case ACL_TYPE_DEFAULT: if (!S_ISDIR(inode->i_mode)) return acl ? -EINVAL : 0; - name_index = BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT; + name = POSIX_ACL_XATTR_DEFAULT; p_acl = &BTRFS_I(inode)->i_default_acl; break; default: @@ -156,7 +158,7 @@ static int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) goto out; } - ret = btrfs_xattr_set(inode, name_index, "", value, size, 0); + ret = __btrfs_setxattr(inode, name, value, size, 0); out: if (value) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 10f26f44532..43d3f2649ca 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -45,6 +45,7 @@ #include "print-tree.h" #include "volumes.h" #include "ordered-data.h" +#include "xattr.h" struct btrfs_iget_args { u64 ino; @@ -3667,10 +3668,10 @@ static struct inode_operations btrfs_dir_inode_operations = { .symlink = btrfs_symlink, .setattr = btrfs_setattr, .mknod = btrfs_mknod, - .setxattr = generic_setxattr, - .getxattr = generic_getxattr, + .setxattr = btrfs_setxattr, + .getxattr = btrfs_getxattr, .listxattr = btrfs_listxattr, - .removexattr = generic_removexattr, + .removexattr = btrfs_removexattr, .permission = btrfs_permission, }; static struct inode_operations btrfs_dir_ro_inode_operations = { @@ -3728,20 +3729,20 @@ static struct inode_operations btrfs_file_inode_operations = { .truncate = btrfs_truncate, .getattr = btrfs_getattr, .setattr = btrfs_setattr, - .setxattr = generic_setxattr, - .getxattr = generic_getxattr, + .setxattr = btrfs_setxattr, + .getxattr = btrfs_getxattr, .listxattr = btrfs_listxattr, - .removexattr = generic_removexattr, + .removexattr = btrfs_removexattr, .permission = btrfs_permission, }; static struct inode_operations btrfs_special_inode_operations = { .getattr = btrfs_getattr, .setattr = btrfs_setattr, .permission = btrfs_permission, - .setxattr = generic_setxattr, - .getxattr = generic_getxattr, + .setxattr = btrfs_setxattr, + .getxattr = btrfs_getxattr, .listxattr = btrfs_listxattr, - .removexattr = generic_removexattr, + .removexattr = btrfs_removexattr, }; static struct inode_operations btrfs_symlink_inode_operations = { .readlink = generic_readlink, diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index fdfece41dd1..adb4b32a9d5 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -27,91 +27,20 @@ #include "xattr.h" #include "disk-io.h" -static struct xattr_handler *btrfs_xattr_handler_map[] = { - [BTRFS_XATTR_INDEX_USER] = &btrfs_xattr_user_handler, -#ifdef CONFIG_FS_POSIX_ACL - [BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS] = &btrfs_xattr_acl_access_handler, - [BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT] = &btrfs_xattr_acl_default_handler, -#endif - [BTRFS_XATTR_INDEX_TRUSTED] = &btrfs_xattr_trusted_handler, - [BTRFS_XATTR_INDEX_SECURITY] = &btrfs_xattr_security_handler, - [BTRFS_XATTR_INDEX_SYSTEM] = &btrfs_xattr_system_handler, -}; - -struct xattr_handler *btrfs_xattr_handlers[] = { - &btrfs_xattr_user_handler, -#ifdef CONFIG_FS_POSIX_ACL - &btrfs_xattr_acl_access_handler, - &btrfs_xattr_acl_default_handler, -#endif - &btrfs_xattr_trusted_handler, - &btrfs_xattr_security_handler, - &btrfs_xattr_system_handler, - NULL, -}; - -/* - * @param name_index - the index for the xattr handler - * @return the xattr_handler if we found it, NULL otherwise - * - * use this if we know the type of the xattr already - */ -static struct xattr_handler *btrfs_xattr_handler(int name_index) -{ - struct xattr_handler *handler = NULL; - - if (name_index >= 0 && - name_index < ARRAY_SIZE(btrfs_xattr_handler_map)) - handler = btrfs_xattr_handler_map[name_index]; - - return handler; -} - -static inline char *get_name(const char *name, int name_index) -{ - char *ret = NULL; - struct xattr_handler *handler = btrfs_xattr_handler(name_index); - int prefix_len; - - if (!handler) - return ret; - - prefix_len = strlen(handler->prefix); - - ret = kmalloc(strlen(name) + prefix_len + 1, GFP_KERNEL); - if (!ret) - return ret; - - memcpy(ret, handler->prefix, prefix_len); - memcpy(ret+prefix_len, name, strlen(name)); - ret[prefix_len + strlen(name)] = '\0'; - - return ret; -} -ssize_t btrfs_xattr_get(struct inode *inode, int name_index, - const char *attr_name, void *buffer, size_t size) +ssize_t __btrfs_getxattr(struct inode *inode, const char *name, + void *buffer, size_t size) { struct btrfs_dir_item *di; struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_path *path; struct extent_buffer *leaf; - struct xattr_handler *handler = btrfs_xattr_handler(name_index); int ret = 0; unsigned long data_ptr; - char *name; - - if (!handler) - return -EOPNOTSUPP; - name = get_name(attr_name, name_index); - if (!name) - return -ENOMEM; path = btrfs_alloc_path(); - if (!path) { - kfree(name); + if (!path) return -ENOMEM; - } /* lookup the xattr by name */ di = btrfs_lookup_xattr(NULL, root, path, inode->i_ino, name, @@ -140,33 +69,22 @@ ssize_t btrfs_xattr_get(struct inode *inode, int name_index, ret = btrfs_dir_data_len(leaf, di); out: - kfree(name); btrfs_free_path(path); return ret; } -int btrfs_xattr_set(struct inode *inode, int name_index, - const char *attr_name, const void *value, size_t size, - int flags) +int __btrfs_setxattr(struct inode *inode, const char *name, + const void *value, size_t size, int flags) { struct btrfs_dir_item *di; struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans; struct btrfs_path *path; - struct xattr_handler *handler = btrfs_xattr_handler(name_index); - char *name; int ret = 0, mod = 0; - if (!handler) - return -EOPNOTSUPP; - name = get_name(attr_name, name_index); - if (!name) - return -ENOMEM; path = btrfs_alloc_path(); - if (!path) { - kfree(name); + if (!path) return -ENOMEM; - } trans = btrfs_start_transaction(root, 1); btrfs_set_trans_block_group(trans, inode); @@ -221,9 +139,7 @@ out: } btrfs_end_transaction(trans, root); - kfree(name); btrfs_free_path(path); - return ret; } @@ -329,51 +245,77 @@ err: } /* - * Handler functions + * List of handlers for synthetic system.* attributes. All real ondisk + * attributes are handled directly. + */ +struct xattr_handler *btrfs_xattr_handlers[] = { +#ifdef CONFIG_FS_POSIX_ACL + &btrfs_xattr_acl_access_handler, + &btrfs_xattr_acl_default_handler, +#endif + NULL, +}; + +/* + * Check if the attribute is in a supported namespace. + * + * This applied after the check for the synthetic attributes in the system + * namespace. */ -#define BTRFS_XATTR_SETGET_FUNCS(name, index) \ -static int btrfs_xattr_##name##_get(struct inode *inode, \ - const char *name, void *value, \ - size_t size) \ -{ \ - if (*name == '\0') \ - return -EINVAL; \ - return btrfs_xattr_get(inode, index, name, value, size); \ -} \ -static int btrfs_xattr_##name##_set(struct inode *inode, \ - const char *name, const void *value,\ - size_t size, int flags) \ -{ \ - if (*name == '\0') \ - return -EINVAL; \ - return btrfs_xattr_set(inode, index, name, value, size, flags); \ +static bool btrfs_is_valid_xattr(const char *name) +{ + return !strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) || + !strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) || + !strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) || + !strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); } -BTRFS_XATTR_SETGET_FUNCS(security, BTRFS_XATTR_INDEX_SECURITY); -BTRFS_XATTR_SETGET_FUNCS(system, BTRFS_XATTR_INDEX_SYSTEM); -BTRFS_XATTR_SETGET_FUNCS(user, BTRFS_XATTR_INDEX_USER); -BTRFS_XATTR_SETGET_FUNCS(trusted, BTRFS_XATTR_INDEX_TRUSTED); +ssize_t btrfs_getxattr(struct dentry *dentry, const char *name, + void *buffer, size_t size) +{ + /* + * If this is a request for a synthetic attribute in the system.* + * namespace use the generic infrastructure to resolve a handler + * for it via sb->s_xattr. + */ + if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return generic_getxattr(dentry, name, buffer, size); -struct xattr_handler btrfs_xattr_security_handler = { - .prefix = XATTR_SECURITY_PREFIX, - .get = btrfs_xattr_security_get, - .set = btrfs_xattr_security_set, -}; + if (!btrfs_is_valid_xattr(name)) + return -EOPNOTSUPP; + return __btrfs_getxattr(dentry->d_inode, name, buffer, size); +} -struct xattr_handler btrfs_xattr_system_handler = { - .prefix = XATTR_SYSTEM_PREFIX, - .get = btrfs_xattr_system_get, - .set = btrfs_xattr_system_set, -}; +int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, + size_t size, int flags) +{ + /* + * If this is a request for a synthetic attribute in the system.* + * namespace use the generic infrastructure to resolve a handler + * for it via sb->s_xattr. + */ + if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return generic_setxattr(dentry, name, value, size, flags); -struct xattr_handler btrfs_xattr_user_handler = { - .prefix = XATTR_USER_PREFIX, - .get = btrfs_xattr_user_get, - .set = btrfs_xattr_user_set, -}; + if (!btrfs_is_valid_xattr(name)) + return -EOPNOTSUPP; -struct xattr_handler btrfs_xattr_trusted_handler = { - .prefix = XATTR_TRUSTED_PREFIX, - .get = btrfs_xattr_trusted_get, - .set = btrfs_xattr_trusted_set, -}; + if (size == 0) + value = ""; /* empty EA, do not remove */ + return __btrfs_setxattr(dentry->d_inode, name, value, size, flags); +} + +int btrfs_removexattr(struct dentry *dentry, const char *name) +{ + /* + * If this is a request for a synthetic attribute in the system.* + * namespace use the generic infrastructure to resolve a handler + * for it via sb->s_xattr. + */ + if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return generic_removexattr(dentry, name); + + if (!btrfs_is_valid_xattr(name)) + return -EOPNOTSUPP; + return __btrfs_setxattr(dentry->d_inode, name, NULL, 0, XATTR_REPLACE); +} diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h index 825e55bd496..5b1d08f8e68 100644 --- a/fs/btrfs/xattr.h +++ b/fs/btrfs/xattr.h @@ -20,31 +20,20 @@ #define __XATTR__ #include -#include "ctree.h" -/* Name indexes */ -enum { - BTRFS_XATTR_INDEX_USER, - BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, - BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT, - BTRFS_XATTR_INDEX_TRUSTED, - BTRFS_XATTR_INDEX_SECURITY, - BTRFS_XATTR_INDEX_SYSTEM, - BTRFS_XATTR_INDEX_END, -}; - -extern struct xattr_handler btrfs_xattr_user_handler; -extern struct xattr_handler btrfs_xattr_trusted_handler; extern struct xattr_handler btrfs_xattr_acl_access_handler; extern struct xattr_handler btrfs_xattr_acl_default_handler; -extern struct xattr_handler btrfs_xattr_security_handler; -extern struct xattr_handler btrfs_xattr_system_handler; - extern struct xattr_handler *btrfs_xattr_handlers[]; -ssize_t btrfs_xattr_get(struct inode *inode, int name_index, const char *name, - void *buffer, size_t size); -int btrfs_xattr_set(struct inode *inode, int name_index, const char *name, - const void *value, size_t size, int flags); +extern ssize_t __btrfs_getxattr(struct inode *inode, const char *name, + void *buffer, size_t size); +extern int __btrfs_setxattr(struct inode *inode, const char *name, + const void *value, size_t size, int flags); + +extern ssize_t btrfs_getxattr(struct dentry *dentry, const char *name, + void *buffer, size_t size); +extern int btrfs_setxattr(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags); +extern int btrfs_removexattr(struct dentry *dentry, const char *name); #endif /* __XATTR__ */ -- cgit v1.2.3-70-g09d2 From d397712bcc6a759a560fd247e6053ecae091f958 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 5 Jan 2009 21:25:51 -0500 Subject: Btrfs: Fix checkpatch.pl warnings There were many, most are fixed now. struct-funcs.c generates some warnings but these are bogus. Signed-off-by: Chris Mason --- fs/btrfs/acl.c | 5 +- fs/btrfs/async-thread.c | 6 +- fs/btrfs/compat.h | 4 +- fs/btrfs/compression.c | 12 +-- fs/btrfs/ctree.c | 217 ++++++++++++++++-------------------------- fs/btrfs/ctree.h | 30 +++--- fs/btrfs/dir-item.c | 2 +- fs/btrfs/disk-io.c | 187 +++++++++++++------------------------ fs/btrfs/export.c | 8 +- fs/btrfs/extent-tree.c | 223 +++++++++++++++++++++++--------------------- fs/btrfs/extent_io.c | 213 ++++++++++++++++++++---------------------- fs/btrfs/extent_map.c | 14 +-- fs/btrfs/file-item.c | 18 ++-- fs/btrfs/file.c | 49 +++++----- fs/btrfs/free-space-cache.c | 37 ++++---- fs/btrfs/inode-map.c | 1 - fs/btrfs/inode.c | 173 +++++++++++++++++----------------- fs/btrfs/ioctl.c | 37 ++++---- fs/btrfs/locking.c | 5 +- fs/btrfs/ordered-data.c | 34 +++---- fs/btrfs/print-tree.c | 73 +++++++++------ fs/btrfs/ref-cache.c | 12 +-- fs/btrfs/root-tree.c | 17 ++-- fs/btrfs/struct-funcs.c | 4 +- fs/btrfs/super.c | 25 +++-- fs/btrfs/sysfs.c | 6 +- fs/btrfs/transaction.c | 45 ++++----- fs/btrfs/transaction.h | 6 +- fs/btrfs/tree-defrag.c | 9 +- fs/btrfs/tree-log.c | 70 +++++++------- fs/btrfs/volumes.c | 78 ++++++++-------- fs/btrfs/xattr.c | 3 +- fs/btrfs/zlib.c | 45 ++++----- 33 files changed, 770 insertions(+), 898 deletions(-) (limited to 'fs/btrfs/acl.c') diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 867eaf1f8ef..1d53b62dbba 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -161,8 +161,7 @@ static int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) ret = __btrfs_setxattr(inode, name, value, size, 0); out: - if (value) - kfree(value); + kfree(value); if (!ret) btrfs_update_cached_acl(inode, p_acl, acl); @@ -213,7 +212,7 @@ static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name, } static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name, - const void *value, size_t size, int flags) + const void *value, size_t size, int flags) { return btrfs_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size); } diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c index 4229450b759..8e2fec05dbe 100644 --- a/fs/btrfs/async-thread.c +++ b/fs/btrfs/async-thread.c @@ -104,7 +104,7 @@ static noinline int run_ordered_completions(struct btrfs_workers *workers, spin_lock_irqsave(&workers->lock, flags); - while(!list_empty(&workers->order_list)) { + while (!list_empty(&workers->order_list)) { work = list_entry(workers->order_list.next, struct btrfs_work, order_list); @@ -143,7 +143,7 @@ static int worker_loop(void *arg) struct btrfs_work *work; do { spin_lock_irq(&worker->lock); - while(!list_empty(&worker->pending)) { + while (!list_empty(&worker->pending)) { cur = worker->pending.next; work = list_entry(cur, struct btrfs_work, list); list_del(&work->list); @@ -188,7 +188,7 @@ int btrfs_stop_workers(struct btrfs_workers *workers) struct btrfs_worker_thread *worker; list_splice_init(&workers->idle_list, &workers->worker_list); - while(!list_empty(&workers->worker_list)) { + while (!list_empty(&workers->worker_list)) { cur = workers->worker_list.next; worker = list_entry(cur, struct btrfs_worker_thread, worker_list); diff --git a/fs/btrfs/compat.h b/fs/btrfs/compat.h index 75e4426d6fb..594d60bdd3c 100644 --- a/fs/btrfs/compat.h +++ b/fs/btrfs/compat.h @@ -4,7 +4,7 @@ #define btrfs_drop_nlink(inode) drop_nlink(inode) #define btrfs_inc_nlink(inode) inc_nlink(inode) -#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27) +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 27) static inline struct dentry *d_obtain_alias(struct inode *inode) { struct dentry *d; @@ -21,7 +21,7 @@ static inline struct dentry *d_obtain_alias(struct inode *inode) } #endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) +#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 28) # define __pagevec_lru_add_file __pagevec_lru_add # define open_bdev_exclusive open_bdev_excl # define close_bdev_exclusive(bdev, mode) close_bdev_excl(bdev) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 2436163d543..ee848d8585d 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -137,7 +137,8 @@ static int check_compressed_csum(struct inode *inode, kunmap_atomic(kaddr, KM_USER0); if (csum != *cb_sum) { - printk("btrfs csum failed ino %lu extent %llu csum %u " + printk(KERN_INFO "btrfs csum failed ino %lu " + "extent %llu csum %u " "wanted %u mirror %d\n", inode->i_ino, (unsigned long long)disk_start, csum, *cb_sum, cb->mirror_num); @@ -217,7 +218,7 @@ csum_failed: * we have verified the checksum already, set page * checked so the end_io handlers know about it */ - while(bio_index < cb->orig_bio->bi_vcnt) { + while (bio_index < cb->orig_bio->bi_vcnt) { SetPageChecked(bvec->bv_page); bvec++; bio_index++; @@ -246,7 +247,7 @@ static noinline int end_compressed_writeback(struct inode *inode, u64 start, int i; int ret; - while(nr_pages > 0) { + while (nr_pages > 0) { ret = find_get_pages_contig(inode->i_mapping, index, min_t(unsigned long, nr_pages, ARRAY_SIZE(pages)), pages); @@ -463,7 +464,7 @@ static noinline int add_ra_bio_pages(struct inode *inode, end_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT; pagevec_init(&pvec, 0); - while(last_offset < compressed_end) { + while (last_offset < compressed_end) { page_index = last_offset >> PAGE_CACHE_SHIFT; if (page_index > end_index) @@ -697,9 +698,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0); BUG_ON(ret); - if (!btrfs_test_flag(inode, NODATASUM)) { + if (!btrfs_test_flag(inode, NODATASUM)) btrfs_lookup_bio_sums(root, inode, comp_bio, sums); - } ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0); BUG_ON(ret); diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 7fad2e3ad6f..9e46c077681 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -67,7 +67,7 @@ void btrfs_free_path(struct btrfs_path *p) * * It is safe to call this on paths that no locks or extent buffers held. */ -void noinline btrfs_release_path(struct btrfs_root *root, struct btrfs_path *p) +noinline void btrfs_release_path(struct btrfs_root *root, struct btrfs_path *p) { int i; @@ -112,7 +112,7 @@ struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root) { struct extent_buffer *eb; - while(1) { + while (1) { eb = btrfs_root_node(root); btrfs_tree_lock(eb); @@ -202,22 +202,22 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans, } /* - * does the dirty work in cow of a single block. The parent block - * (if supplied) is updated to point to the new cow copy. The new - * buffer is marked dirty and returned locked. If you modify the block - * it needs to be marked dirty again. + * does the dirty work in cow of a single block. The parent block (if + * supplied) is updated to point to the new cow copy. The new buffer is marked + * dirty and returned locked. If you modify the block it needs to be marked + * dirty again. * * search_start -- an allocation hint for the new block * - * empty_size -- a hint that you plan on doing more cow. This is the size in bytes - * the allocator should try to find free next to the block it returns. This is - * just a hint and may be ignored by the allocator. + * empty_size -- a hint that you plan on doing more cow. This is the size in + * bytes the allocator should try to find free next to the block it returns. + * This is just a hint and may be ignored by the allocator. * * prealloc_dest -- if you have already reserved a destination for the cow, - * this uses that block instead of allocating a new one. btrfs_alloc_reserved_extent - * is used to finish the allocation. + * this uses that block instead of allocating a new one. + * btrfs_alloc_reserved_extent is used to finish the allocation. */ -static int noinline __btrfs_cow_block(struct btrfs_trans_handle *trans, +static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf, struct extent_buffer *parent, int parent_slot, @@ -366,7 +366,7 @@ static int noinline __btrfs_cow_block(struct btrfs_trans_handle *trans, * This version of it has extra checks so that a block isn't cow'd more than * once per transaction, as long as it hasn't been written yet */ -int noinline btrfs_cow_block(struct btrfs_trans_handle *trans, +noinline int btrfs_cow_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf, struct extent_buffer *parent, int parent_slot, struct extent_buffer **cow_ret, u64 prealloc_dest) @@ -375,13 +375,16 @@ int noinline btrfs_cow_block(struct btrfs_trans_handle *trans, int ret; if (trans->transaction != root->fs_info->running_transaction) { - printk(KERN_CRIT "trans %Lu running %Lu\n", trans->transid, + printk(KERN_CRIT "trans %llu running %llu\n", + (unsigned long long)trans->transid, + (unsigned long long) root->fs_info->running_transaction->transid); WARN_ON(1); } if (trans->transid != root->fs_info->generation) { - printk(KERN_CRIT "trans %Lu running %Lu\n", trans->transid, - root->fs_info->generation); + printk(KERN_CRIT "trans %llu running %llu\n", + (unsigned long long)trans->transid, + (unsigned long long)root->fs_info->generation); WARN_ON(1); } @@ -489,16 +492,10 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans, if (cache_only && parent_level != 1) return 0; - if (trans->transaction != root->fs_info->running_transaction) { - printk(KERN_CRIT "trans %Lu running %Lu\n", trans->transid, - root->fs_info->running_transaction->transid); + if (trans->transaction != root->fs_info->running_transaction) WARN_ON(1); - } - if (trans->transid != root->fs_info->generation) { - printk(KERN_CRIT "trans %Lu running %Lu\n", trans->transid, - root->fs_info->generation); + if (trans->transid != root->fs_info->generation) WARN_ON(1); - } parent_nritems = btrfs_header_nritems(parent); blocksize = btrfs_level_size(root, parent_level - 1); @@ -681,51 +678,18 @@ static int check_leaf(struct btrfs_root *root, struct btrfs_path *path, BUG_ON(btrfs_node_blockptr(parent, parent_slot) != btrfs_header_bytenr(leaf)); } -#if 0 - for (i = 0; nritems > 1 && i < nritems - 2; i++) { - btrfs_item_key_to_cpu(leaf, &cpukey, i + 1); - btrfs_item_key(leaf, &leaf_key, i); - if (comp_keys(&leaf_key, &cpukey) >= 0) { - btrfs_print_leaf(root, leaf); - printk("slot %d offset bad key\n", i); - BUG_ON(1); - } - if (btrfs_item_offset_nr(leaf, i) != - btrfs_item_end_nr(leaf, i + 1)) { - btrfs_print_leaf(root, leaf); - printk("slot %d offset bad\n", i); - BUG_ON(1); - } - if (i == 0) { - if (btrfs_item_offset_nr(leaf, i) + - btrfs_item_size_nr(leaf, i) != - BTRFS_LEAF_DATA_SIZE(root)) { - btrfs_print_leaf(root, leaf); - printk("slot %d first offset bad\n", i); - BUG_ON(1); - } - } - } - if (nritems > 0) { - if (btrfs_item_size_nr(leaf, nritems - 1) > 4096) { - btrfs_print_leaf(root, leaf); - printk("slot %d bad size \n", nritems - 1); - BUG_ON(1); - } - } -#endif if (slot != 0 && slot < nritems - 1) { btrfs_item_key(leaf, &leaf_key, slot); btrfs_item_key_to_cpu(leaf, &cpukey, slot - 1); if (comp_keys(&leaf_key, &cpukey) <= 0) { btrfs_print_leaf(root, leaf); - printk("slot %d offset bad key\n", slot); + printk(KERN_CRIT "slot %d offset bad key\n", slot); BUG_ON(1); } if (btrfs_item_offset_nr(leaf, slot - 1) != btrfs_item_end_nr(leaf, slot)) { btrfs_print_leaf(root, leaf); - printk("slot %d offset bad\n", slot); + printk(KERN_CRIT "slot %d offset bad\n", slot); BUG_ON(1); } } @@ -736,7 +700,7 @@ static int check_leaf(struct btrfs_root *root, struct btrfs_path *path, if (btrfs_item_offset_nr(leaf, slot) != btrfs_item_end_nr(leaf, slot + 1)) { btrfs_print_leaf(root, leaf); - printk("slot %d offset bad\n", slot); + printk(KERN_CRIT "slot %d offset bad\n", slot); BUG_ON(1); } } @@ -745,30 +709,10 @@ static int check_leaf(struct btrfs_root *root, struct btrfs_path *path, return 0; } -static int noinline check_block(struct btrfs_root *root, +static noinline int check_block(struct btrfs_root *root, struct btrfs_path *path, int level) { - u64 found_start; return 0; - if (btrfs_header_level(path->nodes[level]) != level) - printk("warning: bad level %Lu wanted %d found %d\n", - path->nodes[level]->start, level, - btrfs_header_level(path->nodes[level])); - found_start = btrfs_header_bytenr(path->nodes[level]); - if (found_start != path->nodes[level]->start) { - printk("warning: bad bytentr %Lu found %Lu\n", - path->nodes[level]->start, found_start); - } -#if 0 - struct extent_buffer *buf = path->nodes[level]; - - if (memcmp_extent_buffer(buf, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(buf), - BTRFS_FSID_SIZE)) { - printk("warning bad block %Lu\n", buf->start); - return 1; - } -#endif if (level == 0) return check_leaf(root, path, level); return check_node(root, path, level); @@ -802,7 +746,7 @@ static noinline int generic_bin_search(struct extent_buffer *eb, unsigned long map_len = 0; int err; - while(low < high) { + while (low < high) { mid = (low + high) / 2; offset = p + mid * item_size; @@ -1130,7 +1074,7 @@ enospc: * when they are completely full. This is also done top down, so we * have to be pessimistic. */ -static int noinline push_nodes_for_insert(struct btrfs_trans_handle *trans, +static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int level) { @@ -1296,7 +1240,7 @@ static noinline void reada_for_search(struct btrfs_root *root, nritems = btrfs_header_nritems(node); nr = slot; - while(1) { + while (1) { if (direction < 0) { if (nr == 0) break; @@ -1322,7 +1266,8 @@ static noinline void reada_for_search(struct btrfs_root *root, nscan++; if (path->reada < 2 && (nread > (64 * 1024) || nscan > 32)) break; - if(nread > (256 * 1024) || nscan > 128) + + if (nread > (256 * 1024) || nscan > 128) break; if (search < lowest_read) @@ -1333,17 +1278,17 @@ static noinline void reada_for_search(struct btrfs_root *root, } /* - * when we walk down the tree, it is usually safe to unlock the higher layers in - * the tree. The exceptions are when our path goes through slot 0, because operations - * on the tree might require changing key pointers higher up in the tree. + * when we walk down the tree, it is usually safe to unlock the higher layers + * in the tree. The exceptions are when our path goes through slot 0, because + * operations on the tree might require changing key pointers higher up in the + * tree. * - * callers might also have set path->keep_locks, which tells this code to - * keep the lock if the path points to the last slot in the block. This is - * part of walking through the tree, and selecting the next slot in the higher - * block. + * callers might also have set path->keep_locks, which tells this code to keep + * the lock if the path points to the last slot in the block. This is part of + * walking through the tree, and selecting the next slot in the higher block. * - * lowest_unlock sets the lowest level in the tree we're allowed to unlock. - * so if lowest_unlock is 1, level 0 won't be unlocked + * lowest_unlock sets the lowest level in the tree we're allowed to unlock. so + * if lowest_unlock is 1, level 0 won't be unlocked */ static noinline void unlock_up(struct btrfs_path *path, int level, int lowest_unlock) @@ -1832,9 +1777,8 @@ static int push_node_left(struct btrfs_trans_handle *trans, if (!empty && src_nritems <= 8) return 1; - if (push_items <= 0) { + if (push_items <= 0) return 1; - } if (empty) { push_items = min(src_nritems, push_items); @@ -1854,7 +1798,7 @@ static int push_node_left(struct btrfs_trans_handle *trans, copy_extent_buffer(dst, src, btrfs_node_key_ptr_offset(dst_nritems), btrfs_node_key_ptr_offset(0), - push_items * sizeof(struct btrfs_key_ptr)); + push_items * sizeof(struct btrfs_key_ptr)); if (push_items < src_nritems) { memmove_extent_buffer(src, btrfs_node_key_ptr_offset(0), @@ -1899,19 +1843,16 @@ static int balance_node_right(struct btrfs_trans_handle *trans, src_nritems = btrfs_header_nritems(src); dst_nritems = btrfs_header_nritems(dst); push_items = BTRFS_NODEPTRS_PER_BLOCK(root) - dst_nritems; - if (push_items <= 0) { + if (push_items <= 0) return 1; - } - if (src_nritems < 4) { + if (src_nritems < 4) return 1; - } max_push = src_nritems / 2 + 1; /* don't try to empty the node */ - if (max_push >= src_nritems) { + if (max_push >= src_nritems) return 1; - } if (max_push < push_items) push_items = max_push; @@ -1924,7 +1865,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans, copy_extent_buffer(dst, src, btrfs_node_key_ptr_offset(0), btrfs_node_key_ptr_offset(src_nritems - push_items), - push_items * sizeof(struct btrfs_key_ptr)); + push_items * sizeof(struct btrfs_key_ptr)); btrfs_set_header_nritems(src, src_nritems - push_items); btrfs_set_header_nritems(dst, dst_nritems + push_items); @@ -1945,7 +1886,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans, * * returns zero on success or < 0 on failure. */ -static int noinline insert_new_root(struct btrfs_trans_handle *trans, +static noinline int insert_new_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int level) { @@ -2176,14 +2117,15 @@ static int leaf_space_used(struct extent_buffer *l, int start, int nr) * the start of the leaf data. IOW, how much room * the leaf has left for both items and data */ -int noinline btrfs_leaf_free_space(struct btrfs_root *root, +noinline int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf) { int nritems = btrfs_header_nritems(leaf); int ret; ret = BTRFS_LEAF_DATA_SIZE(root) - leaf_space_used(leaf, 0, nritems); if (ret < 0) { - printk("leaf free space ret %d, leaf data size %lu, used %d nritems %d\n", + printk(KERN_CRIT "leaf free space ret %d, leaf data size %lu, " + "used %d nritems %d\n", ret, (unsigned long) BTRFS_LEAF_DATA_SIZE(root), leaf_space_used(leaf, 0, nritems), nritems); } @@ -2219,9 +2161,9 @@ static int push_leaf_right(struct btrfs_trans_handle *trans, struct btrfs_root int ret; slot = path->slots[1]; - if (!path->nodes[1]) { + if (!path->nodes[1]) return 1; - } + upper = path->nodes[1]; if (slot >= btrfs_header_nritems(upper) - 1) return 1; @@ -2418,9 +2360,8 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root return 1; right_nritems = btrfs_header_nritems(right); - if (right_nritems == 0) { + if (right_nritems == 0) return 1; - } WARN_ON(!btrfs_tree_locked(path->nodes[1])); @@ -2502,7 +2443,7 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root push_items * sizeof(struct btrfs_item)); push_space = BTRFS_LEAF_DATA_SIZE(root) - - btrfs_item_offset_nr(right, push_items -1); + btrfs_item_offset_nr(right, push_items - 1); copy_extent_buffer(left, right, btrfs_leaf_data(left) + leaf_data_end(root, left) - push_space, @@ -2537,7 +2478,8 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root /* fixup right node */ if (push_items > right_nritems) { - printk("push items %d nr %u\n", push_items, right_nritems); + printk(KERN_CRIT "push items %d nr %u\n", push_items, + right_nritems); WARN_ON(1); } @@ -2640,9 +2582,8 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans, /* first try to make some room by pushing left and right */ if (data_size && ins_key->type != BTRFS_DIR_ITEM_KEY) { wret = push_leaf_right(trans, root, path, data_size, 0); - if (wret < 0) { + if (wret < 0) return wret; - } if (wret) { wret = push_leaf_left(trans, root, path, data_size, 0); if (wret < 0) @@ -2665,7 +2606,7 @@ again: l = path->nodes[0]; slot = path->slots[0]; nritems = btrfs_header_nritems(l); - mid = (nritems + 1)/ 2; + mid = (nritems + 1) / 2; right = btrfs_alloc_free_block(trans, root, root->leafsize, path->nodes[1]->start, @@ -2734,7 +2675,7 @@ again: path->slots[0] = 0; if (path->slots[1] == 0) { wret = fixup_low_keys(trans, root, - path, &disk_key, 1); + path, &disk_key, 1); if (wret) ret = wret; } @@ -3033,8 +2974,8 @@ int btrfs_truncate_item(struct btrfs_trans_handle *trans, BTRFS_FILE_EXTENT_INLINE) { ptr = btrfs_item_ptr_offset(leaf, slot); memmove_extent_buffer(leaf, ptr, - (unsigned long)fi, - offsetof(struct btrfs_file_extent_item, + (unsigned long)fi, + offsetof(struct btrfs_file_extent_item, disk_bytenr)); } } @@ -3096,7 +3037,8 @@ int btrfs_extend_item(struct btrfs_trans_handle *trans, BUG_ON(slot < 0); if (slot >= nritems) { btrfs_print_leaf(root, leaf); - printk("slot %d too large, nritems %d\n", slot, nritems); + printk(KERN_CRIT "slot %d too large, nritems %d\n", + slot, nritems); BUG_ON(1); } @@ -3218,7 +3160,7 @@ int btrfs_insert_some_items(struct btrfs_trans_handle *trans, if (old_data < data_end) { btrfs_print_leaf(root, leaf); - printk("slot %d old_data %d data_end %d\n", + printk(KERN_CRIT "slot %d old_data %d data_end %d\n", slot, old_data, data_end); BUG_ON(1); } @@ -3317,9 +3259,8 @@ int btrfs_insert_empty_items(struct btrfs_trans_handle *trans, unsigned int data_end; struct btrfs_disk_key disk_key; - for (i = 0; i < nr; i++) { + for (i = 0; i < nr; i++) total_data += data_size[i]; - } total_size = total_data + (nr * sizeof(struct btrfs_item)); ret = btrfs_search_slot(trans, root, cpu_key, path, total_size, 1); @@ -3336,7 +3277,7 @@ int btrfs_insert_empty_items(struct btrfs_trans_handle *trans, if (btrfs_leaf_free_space(root, leaf) < total_size) { btrfs_print_leaf(root, leaf); - printk("not enough freespace need %u have %d\n", + printk(KERN_CRIT "not enough freespace need %u have %d\n", total_size, btrfs_leaf_free_space(root, leaf)); BUG(); } @@ -3349,7 +3290,7 @@ int btrfs_insert_empty_items(struct btrfs_trans_handle *trans, if (old_data < data_end) { btrfs_print_leaf(root, leaf); - printk("slot %d old_data %d data_end %d\n", + printk(KERN_CRIT "slot %d old_data %d data_end %d\n", slot, old_data, data_end); BUG_ON(1); } @@ -3457,7 +3398,7 @@ static int del_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root, int wret; nritems = btrfs_header_nritems(parent); - if (slot != nritems -1) { + if (slot != nritems - 1) { memmove_extent_buffer(parent, btrfs_node_key_ptr_offset(slot), btrfs_node_key_ptr_offset(slot + 1), @@ -3614,7 +3555,8 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, if (btrfs_header_nritems(leaf) == 0) { path->slots[1] = slot; - ret = btrfs_del_leaf(trans, root, path, leaf->start); + ret = btrfs_del_leaf(trans, root, path, + leaf->start); BUG_ON(ret); free_extent_buffer(leaf); } else { @@ -3717,7 +3659,7 @@ again: ret = 1; goto out; } - while(1) { + while (1) { nritems = btrfs_header_nritems(cur); level = btrfs_header_level(cur); sret = bin_search(cur, min_key, level, &slot); @@ -3738,7 +3680,7 @@ again: * min_trans parameters. If it isn't in cache or is too * old, skip to the next one. */ - while(slot < nritems) { + while (slot < nritems) { u64 blockptr; u64 gen; struct extent_buffer *tmp; @@ -3830,7 +3772,7 @@ int btrfs_find_next_key(struct btrfs_root *root, struct btrfs_path *path, struct extent_buffer *c; WARN_ON(!path->keep_locks); - while(level < BTRFS_MAX_LEVEL) { + while (level < BTRFS_MAX_LEVEL) { if (!path->nodes[level]) return 1; @@ -3839,9 +3781,8 @@ int btrfs_find_next_key(struct btrfs_root *root, struct btrfs_path *path, next: if (slot >= btrfs_header_nritems(c)) { level++; - if (level == BTRFS_MAX_LEVEL) { + if (level == BTRFS_MAX_LEVEL) return 1; - } continue; } if (level == 0) @@ -3889,9 +3830,8 @@ int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path) int ret; nritems = btrfs_header_nritems(path->nodes[0]); - if (nritems == 0) { + if (nritems == 0) return 1; - } btrfs_item_key_to_cpu(path->nodes[0], &key, nritems - 1); @@ -3915,7 +3855,7 @@ int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path) goto done; } - while(level < BTRFS_MAX_LEVEL) { + while (level < BTRFS_MAX_LEVEL) { if (!path->nodes[level]) return 1; @@ -3923,9 +3863,8 @@ int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path) c = path->nodes[level]; if (slot >= btrfs_header_nritems(c)) { level++; - if (level == BTRFS_MAX_LEVEL) { + if (level == BTRFS_MAX_LEVEL) return 1; - } continue; } @@ -3946,7 +3885,7 @@ int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path) break; } path->slots[level] = slot; - while(1) { + while (1) { level--; c = path->nodes[level]; if (path->locks[level]) @@ -3986,7 +3925,7 @@ int btrfs_previous_item(struct btrfs_root *root, u32 nritems; int ret; - while(1) { + while (1) { if (path->slots[0] == 0) { ret = btrfs_prev_leaf(root, path); if (ret != 0) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index ccea0648e10..eee060f8811 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -126,7 +126,6 @@ struct btrfs_ordered_sum; static int btrfs_csum_sizes[] = { 4, 0 }; /* four bytes for CRC32 */ -//#define BTRFS_CRC32_SIZE 4 #define BTRFS_EMPTY_DIR_SIZE 0 #define BTRFS_FT_UNKNOWN 0 @@ -283,8 +282,8 @@ struct btrfs_header { } __attribute__ ((__packed__)); #define BTRFS_NODEPTRS_PER_BLOCK(r) (((r)->nodesize - \ - sizeof(struct btrfs_header)) / \ - sizeof(struct btrfs_key_ptr)) + sizeof(struct btrfs_header)) / \ + sizeof(struct btrfs_key_ptr)) #define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header)) #define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->leafsize)) #define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \ @@ -1512,7 +1511,7 @@ static inline struct btrfs_header *btrfs_buffer_header(struct extent_buffer *eb) static inline int btrfs_is_leaf(struct extent_buffer *eb) { - return (btrfs_header_level(eb) == 0); + return btrfs_header_level(eb) == 0; } /* struct btrfs_root_item */ @@ -1597,8 +1596,8 @@ static inline unsigned long btrfs_leaf_data(struct extent_buffer *l) /* struct btrfs_file_extent_item */ BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8); -static inline unsigned long btrfs_file_extent_inline_start(struct - btrfs_file_extent_item *e) +static inline unsigned long +btrfs_file_extent_inline_start(struct btrfs_file_extent_item *e) { unsigned long offset = (unsigned long)e; offset += offsetof(struct btrfs_file_extent_item, disk_bytenr); @@ -1660,20 +1659,20 @@ static inline int btrfs_set_root_name(struct btrfs_root *root, const char *name, int len) { /* if we already have a name just free it */ - if (root->name) - kfree(root->name); + kfree(root->name); root->name = kmalloc(len+1, GFP_KERNEL); if (!root->name) return -ENOMEM; memcpy(root->name, name, len); - root->name[len] ='\0'; + root->name[len] = '\0'; return 0; } -static inline u32 btrfs_level_size(struct btrfs_root *root, int level) { +static inline u32 btrfs_level_size(struct btrfs_root *root, int level) +{ if (level == 0) return root->leafsize; return root->nodesize; @@ -1707,9 +1706,9 @@ int btrfs_cross_ref_exist(struct btrfs_trans_handle *trans, int btrfs_extent_post_op(struct btrfs_trans_handle *trans, struct btrfs_root *root); int btrfs_copy_pinned(struct btrfs_root *root, struct extent_io_tree *copy); -struct btrfs_block_group_cache *btrfs_lookup_block_group(struct - btrfs_fs_info *info, - u64 bytenr); +struct btrfs_block_group_cache *btrfs_lookup_block_group( + struct btrfs_fs_info *info, + u64 bytenr); u64 btrfs_find_block_group(struct btrfs_root *root, u64 search_start, u64 search_hint, int owner); struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans, @@ -1908,8 +1907,9 @@ int btrfs_search_root(struct btrfs_root *root, u64 search_start, int btrfs_find_dead_roots(struct btrfs_root *root, u64 objectid, struct btrfs_root *latest_root); /* dir-item.c */ -int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root - *root, const char *name, int name_len, u64 dir, +int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, + struct btrfs_root *root, const char *name, + int name_len, u64 dir, struct btrfs_key *location, u8 type, u64 index); struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c index 5040b71f190..926a0b287a7 100644 --- a/fs/btrfs/dir-item.c +++ b/fs/btrfs/dir-item.c @@ -333,7 +333,7 @@ struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_root *root, leaf = path->nodes[0]; dir_item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_dir_item); total_len = btrfs_item_size_nr(leaf, path->slots[0]); - while(cur < total_len) { + while (cur < total_len) { this_len = sizeof(*dir_item) + btrfs_dir_name_len(leaf, dir_item) + btrfs_dir_data_len(leaf, dir_item); diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index dae25e78a6b..81a313874ae 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -23,7 +23,7 @@ #include #include #include -#include // for block_sync_page +#include #include #include #include @@ -40,19 +40,6 @@ #include "ref-cache.h" #include "tree-log.h" -#if 0 -static int check_tree_block(struct btrfs_root *root, struct extent_buffer *buf) -{ - if (extent_buffer_blocknr(buf) != btrfs_header_blocknr(buf)) { - printk(KERN_CRIT "buf blocknr(buf) is %llu, header is %llu\n", - (unsigned long long)extent_buffer_blocknr(buf), - (unsigned long long)btrfs_header_blocknr(buf)); - return 1; - } - return 0; -} -#endif - static struct extent_io_ops btree_extent_io_ops; static void end_workqueue_fn(struct btrfs_work *work); @@ -128,23 +115,13 @@ static struct extent_map *btree_get_extent(struct inode *inode, u64 failed_start = em->start; u64 failed_len = em->len; - printk("failed to insert %Lu %Lu -> %Lu into tree\n", - em->start, em->len, em->block_start); free_extent_map(em); em = lookup_extent_mapping(em_tree, start, len); if (em) { - printk("after failing, found %Lu %Lu %Lu\n", - em->start, em->len, em->block_start); ret = 0; } else { em = lookup_extent_mapping(em_tree, failed_start, failed_len); - if (em) { - printk("double failure lookup gives us " - "%Lu %Lu -> %Lu\n", em->start, - em->len, em->block_start); - free_extent_map(em); - } ret = -EIO; } } else if (ret) { @@ -191,15 +168,12 @@ static int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf, unsigned long inline_result; len = buf->len - offset; - while(len > 0) { + while (len > 0) { err = map_private_extent_buffer(buf, offset, 32, &map_token, &kaddr, &map_start, &map_len, KM_USER0); - if (err) { - printk("failed to map extent buffer! %lu\n", - offset); + if (err) return 1; - } cur_len = min(len, map_len - (offset - map_start)); crc = btrfs_csum_data(root, kaddr + offset - map_start, crc, cur_len); @@ -218,15 +192,14 @@ static int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf, btrfs_csum_final(crc, result); if (verify) { - /* FIXME, this is not good */ if (memcmp_extent_buffer(buf, result, 0, csum_size)) { u32 val; u32 found = 0; memcpy(&found, result, csum_size); read_extent_buffer(buf, &val, 0, csum_size); - printk("btrfs: %s checksum verify failed on %llu " - "wanted %X found %X level %d\n", + printk(KERN_INFO "btrfs: %s checksum verify failed " + "on %llu wanted %X found %X level %d\n", root->fs_info->sb->s_id, buf->start, val, found, btrfs_header_level(buf)); if (result != (char *)&inline_result) @@ -293,7 +266,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, if (!ret && !verify_parent_transid(io_tree, eb, parent_transid)) return ret; -printk("read extent buffer pages failed with ret %d mirror no %d\n", ret, mirror_num); + num_copies = btrfs_num_copies(&root->fs_info->mapping_tree, eb->start, eb->len); if (num_copies == 1) @@ -307,9 +280,10 @@ printk("read extent buffer pages failed with ret %d mirror no %d\n", ret, mirror } /* - * checksum a dirty tree block before IO. This has extra checks to make - * sure we only fill in the checksum field in the first page of a multi-page block + * checksum a dirty tree block before IO. This has extra checks to make sure + * we only fill in the checksum field in the first page of a multi-page block */ + static int csum_dirty_buffer(struct btrfs_root *root, struct page *page) { struct extent_io_tree *tree; @@ -327,28 +301,22 @@ static int csum_dirty_buffer(struct btrfs_root *root, struct page *page) if (!page->private) goto out; len = page->private >> 2; - if (len == 0) { - WARN_ON(1); - } + WARN_ON(len == 0); + eb = alloc_extent_buffer(tree, start, len, page, GFP_NOFS); ret = btree_read_extent_buffer_pages(root, eb, start + PAGE_CACHE_SIZE, btrfs_header_generation(eb)); BUG_ON(ret); found_start = btrfs_header_bytenr(eb); if (found_start != start) { - printk("warning: eb start incorrect %Lu buffer %Lu len %lu\n", - start, found_start, len); WARN_ON(1); goto err; } if (eb->first_page != page) { - printk("bad first page %lu %lu\n", eb->first_page->index, - page->index); WARN_ON(1); goto err; } if (!PageUptodate(page)) { - printk("csum not up to date page %lu\n", page->index); WARN_ON(1); goto err; } @@ -396,29 +364,30 @@ static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end, goto out; if (!page->private) goto out; + len = page->private >> 2; - if (len == 0) { - WARN_ON(1); - } + WARN_ON(len == 0); + eb = alloc_extent_buffer(tree, start, len, page, GFP_NOFS); found_start = btrfs_header_bytenr(eb); if (found_start != start) { - printk("bad tree block start %llu %llu\n", + printk(KERN_INFO "btrfs bad tree block start %llu %llu\n", (unsigned long long)found_start, (unsigned long long)eb->start); ret = -EIO; goto err; } if (eb->first_page != page) { - printk("bad first page %lu %lu\n", eb->first_page->index, - page->index); + printk(KERN_INFO "btrfs bad first page %lu %lu\n", + eb->first_page->index, page->index); WARN_ON(1); ret = -EIO; goto err; } if (check_tree_block_fsid(root, eb)) { - printk("bad fsid on block %Lu\n", eb->start); + printk(KERN_INFO "btrfs bad fsid on block %llu\n", + (unsigned long long)eb->start); ret = -EIO; goto err; } @@ -578,7 +547,7 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode, HZ/10); } #endif - while(atomic_read(&fs_info->async_submit_draining) && + while (atomic_read(&fs_info->async_submit_draining) && atomic_read(&fs_info->nr_async_submits)) { wait_event(fs_info->async_submit_wait, (atomic_read(&fs_info->nr_async_submits) == 0)); @@ -594,7 +563,7 @@ static int btree_csum_one_bio(struct bio *bio) struct btrfs_root *root; WARN_ON(bio->bi_vcnt <= 0); - while(bio_index < bio->bi_vcnt) { + while (bio_index < bio->bi_vcnt) { root = BTRFS_I(bvec->bv_page->mapping->host)->root; csum_dirty_buffer(root, bvec->bv_page); bio_index++; @@ -680,9 +649,8 @@ static int btree_writepages(struct address_space *mapping, num_dirty = count_range_bits(tree, &start, (u64)-1, thresh, EXTENT_DIRTY); - if (num_dirty < thresh) { + if (num_dirty < thresh) return 0; - } } return extent_writepages(tree, mapping, btree_get_extent, wbc); } @@ -701,15 +669,14 @@ static int btree_releasepage(struct page *page, gfp_t gfp_flags) int ret; if (PageWriteback(page) || PageDirty(page)) - return 0; + return 0; tree = &BTRFS_I(page->mapping->host)->io_tree; map = &BTRFS_I(page->mapping->host)->extent_tree; ret = try_release_extent_state(map, tree, page, gfp_flags); - if (!ret) { + if (!ret) return 0; - } ret = try_release_extent_buffer(tree, page); if (ret == 1) { @@ -728,8 +695,8 @@ static void btree_invalidatepage(struct page *page, unsigned long offset) extent_invalidatepage(tree, page, offset); btree_releasepage(page, GFP_NOFS); if (PagePrivate(page)) { - printk("warning page private not zero on page %Lu\n", - page_offset(page)); + printk(KERN_WARNING "btrfs warning page private not zero " + "on page %llu\n", (unsigned long long)page_offset(page)); ClearPagePrivate(page); set_page_private(page, 0); page_cache_release(page); @@ -813,7 +780,7 @@ int btrfs_write_tree_block(struct extent_buffer *buf) int btrfs_wait_tree_block_writeback(struct extent_buffer *buf) { return btrfs_wait_on_page_writeback_range(buf->first_page->mapping, - buf->start, buf->start + buf->len -1); + buf->start, buf->start + buf->len - 1); } struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr, @@ -832,11 +799,10 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr, ret = btree_read_extent_buffer_pages(root, buf, 0, parent_transid); - if (ret == 0) { + if (ret == 0) buf->flags |= EXTENT_UPTODATE; - } else { + else WARN_ON(1); - } return buf; } @@ -944,7 +910,7 @@ int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, if (!log_root_tree) return 0; - while(1) { + while (1) { ret = find_first_extent_bit(&log_root_tree->dirty_log_pages, 0, &start, &end, EXTENT_DIRTY); if (ret) @@ -1165,24 +1131,6 @@ struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info, root->in_sysfs = 1; return root; } -#if 0 -static int add_hasher(struct btrfs_fs_info *info, char *type) { - struct btrfs_hasher *hasher; - - hasher = kmalloc(sizeof(*hasher), GFP_NOFS); - if (!hasher) - return -ENOMEM; - hasher->hash_tfm = crypto_alloc_hash(type, 0, CRYPTO_ALG_ASYNC); - if (!hasher->hash_tfm) { - kfree(hasher); - return -EINVAL; - } - spin_lock(&info->hash_lock); - list_add(&hasher->list, &info->hashers); - spin_unlock(&info->hash_lock); - return 0; -} -#endif static int btrfs_congested_fn(void *congested_data, int bdi_bits) { @@ -1226,9 +1174,8 @@ static void __unplug_io_fn(struct backing_dev_info *bdi, struct page *page) continue; bdi = blk_get_backing_dev_info(device->bdev); - if (bdi->unplug_io_fn) { + if (bdi->unplug_io_fn) bdi->unplug_io_fn(bdi, page); - } } } @@ -1420,8 +1367,9 @@ static int transaction_kthread(void *arg) mutex_lock(&root->fs_info->transaction_kthread_mutex); if (root->fs_info->total_ref_cache_size > 20 * 1024 * 1024) { - printk("btrfs: total reference cache size %Lu\n", - root->fs_info->total_ref_cache_size); + printk(KERN_INFO "btrfs: total reference cache " + "size %llu\n", + root->fs_info->total_ref_cache_size); } mutex_lock(&root->fs_info->trans_mutex); @@ -1592,14 +1540,6 @@ struct btrfs_root *open_ctree(struct super_block *sb, atomic_set(&fs_info->tree_log_writers, 0); fs_info->tree_log_transid = 0; -#if 0 - ret = add_hasher(fs_info, "crc32c"); - if (ret) { - printk("btrfs: failed hash setup, modprobe cryptomgr?\n"); - err = -ENOMEM; - goto fail_iput; - } -#endif __setup_root(4096, 4096, 4096, 4096, tree_root, fs_info, BTRFS_ROOT_TREE_OBJECTID); @@ -1720,7 +1660,7 @@ struct btrfs_root *open_ctree(struct super_block *sb, if (strncmp((char *)(&disk_super->magic), BTRFS_MAGIC, sizeof(disk_super->magic))) { - printk("btrfs: valid FS not found on %s\n", sb->s_id); + printk(KERN_INFO "btrfs: valid FS not found on %s\n", sb->s_id); goto fail_sb_buffer; } @@ -1728,8 +1668,8 @@ struct btrfs_root *open_ctree(struct super_block *sb, ret = btrfs_read_sys_array(tree_root); mutex_unlock(&fs_info->chunk_mutex); if (ret) { - printk("btrfs: failed to read the system array on %s\n", - sb->s_id); + printk(KERN_WARNING "btrfs: failed to read the system " + "array on %s\n", sb->s_id); goto fail_sys_array; } @@ -1746,14 +1686,15 @@ struct btrfs_root *open_ctree(struct super_block *sb, BUG_ON(!chunk_root->node); read_extent_buffer(chunk_root->node, fs_info->chunk_tree_uuid, - (unsigned long)btrfs_header_chunk_tree_uuid(chunk_root->node), - BTRFS_UUID_SIZE); + (unsigned long)btrfs_header_chunk_tree_uuid(chunk_root->node), + BTRFS_UUID_SIZE); mutex_lock(&fs_info->chunk_mutex); ret = btrfs_read_chunk_tree(chunk_root); mutex_unlock(&fs_info->chunk_mutex); if (ret) { - printk("btrfs: failed to read chunk tree on %s\n", sb->s_id); + printk(KERN_WARNING "btrfs: failed to read chunk tree on %s\n", + sb->s_id); goto fail_chunk_root; } @@ -1812,7 +1753,8 @@ struct btrfs_root *open_ctree(struct super_block *sb, u64 bytenr = btrfs_super_log_root(disk_super); if (fs_devices->rw_devices == 0) { - printk("Btrfs log replay required on RO media\n"); + printk(KERN_WARNING "Btrfs log replay required " + "on RO media\n"); err = -EIO; goto fail_trans_kthread; } @@ -2097,7 +2039,8 @@ int write_all_supers(struct btrfs_root *root, int max_mirrors) total_errors++; } if (total_errors > max_errors) { - printk("btrfs: %d errors while writing supers\n", total_errors); + printk(KERN_ERR "btrfs: %d errors while writing supers\n", + total_errors); BUG(); } @@ -2114,7 +2057,8 @@ int write_all_supers(struct btrfs_root *root, int max_mirrors) total_errors++; } if (total_errors > max_errors) { - printk("btrfs: %d errors while writing supers\n", total_errors); + printk(KERN_ERR "btrfs: %d errors while writing supers\n", + total_errors); BUG(); } return 0; @@ -2137,16 +2081,11 @@ int btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root) down_write(&root->anon_super.s_umount); kill_anon_super(&root->anon_super); } -#if 0 - if (root->in_sysfs) - btrfs_sysfs_del_root(root); -#endif if (root->node) free_extent_buffer(root->node); if (root->commit_root) free_extent_buffer(root->commit_root); - if (root->name) - kfree(root->name); + kfree(root->name); kfree(root); return 0; } @@ -2157,7 +2096,7 @@ static int del_fs_roots(struct btrfs_fs_info *fs_info) struct btrfs_root *gang[8]; int i; - while(1) { + while (1) { ret = radix_tree_gang_lookup(&fs_info->fs_roots_radix, (void **)gang, 0, ARRAY_SIZE(gang)); @@ -2228,18 +2167,17 @@ int close_ctree(struct btrfs_root *root) if (!(fs_info->sb->s_flags & MS_RDONLY)) { ret = btrfs_commit_super(root); - if (ret) { - printk("btrfs: commit super returns %d\n", ret); - } + if (ret) + printk(KERN_ERR "btrfs: commit super ret %d\n", ret); } if (fs_info->delalloc_bytes) { - printk("btrfs: at unmount delalloc count %Lu\n", + printk(KERN_INFO "btrfs: at unmount delalloc count %llu\n", fs_info->delalloc_bytes); } if (fs_info->total_ref_cache_size) { - printk("btrfs: at umount reference cache size %Lu\n", - fs_info->total_ref_cache_size); + printk(KERN_INFO "btrfs: at umount reference cache size %llu\n", + (unsigned long long)fs_info->total_ref_cache_size); } if (fs_info->extent_root->node) @@ -2248,13 +2186,13 @@ int close_ctree(struct btrfs_root *root) if (fs_info->tree_root->node) free_extent_buffer(fs_info->tree_root->node); - if (root->fs_info->chunk_root->node); + if (root->fs_info->chunk_root->node) free_extent_buffer(root->fs_info->chunk_root->node); - if (root->fs_info->dev_root->node); + if (root->fs_info->dev_root->node) free_extent_buffer(root->fs_info->dev_root->node); - if (root->fs_info->csum_root->node); + if (root->fs_info->csum_root->node) free_extent_buffer(root->fs_info->csum_root->node); btrfs_free_block_groups(root->fs_info); @@ -2273,7 +2211,7 @@ int close_ctree(struct btrfs_root *root) btrfs_stop_workers(&fs_info->submit_workers); #if 0 - while(!list_empty(&fs_info->hashers)) { + while (!list_empty(&fs_info->hashers)) { struct btrfs_hasher *hasher; hasher = list_entry(fs_info->hashers.next, struct btrfs_hasher, hashers); @@ -2324,9 +2262,11 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf) WARN_ON(!btrfs_tree_locked(buf)); if (transid != root->fs_info->generation) { - printk(KERN_CRIT "transid mismatch buffer %llu, found %Lu running %Lu\n", + printk(KERN_CRIT "btrfs transid mismatch buffer %llu, " + "found %llu running %llu\n", (unsigned long long)buf->start, - transid, root->fs_info->generation); + (unsigned long long)transid, + (unsigned long long)root->fs_info->generation); WARN_ON(1); } set_extent_buffer_dirty(&BTRFS_I(btree_inode)->io_tree, buf); @@ -2361,9 +2301,8 @@ int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid) struct btrfs_root *root = BTRFS_I(buf->first_page->mapping->host)->root; int ret; ret = btree_read_extent_buffer_pages(root, buf, 0, parent_transid); - if (ret == 0) { + if (ret == 0) buf->flags |= EXTENT_UPTODATE; - } return ret; } diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c index 48b82cd7583..85315d2c90d 100644 --- a/fs/btrfs/export.c +++ b/fs/btrfs/export.c @@ -7,9 +7,11 @@ #include "export.h" #include "compat.h" -#define BTRFS_FID_SIZE_NON_CONNECTABLE (offsetof(struct btrfs_fid, parent_objectid)/4) -#define BTRFS_FID_SIZE_CONNECTABLE (offsetof(struct btrfs_fid, parent_root_objectid)/4) -#define BTRFS_FID_SIZE_CONNECTABLE_ROOT (sizeof(struct btrfs_fid)/4) +#define BTRFS_FID_SIZE_NON_CONNECTABLE (offsetof(struct btrfs_fid, \ + parent_objectid) / 4) +#define BTRFS_FID_SIZE_CONNECTABLE (offsetof(struct btrfs_fid, \ + parent_root_objectid) / 4) +#define BTRFS_FID_SIZE_CONNECTABLE_ROOT (sizeof(struct btrfs_fid) / 4) static int btrfs_encode_fh(struct dentry *dentry, u32 *fh, int *max_len, int connectable) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 780c1eeb829..ec43fa526d7 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -49,10 +49,10 @@ struct pending_extent_op { int del; }; -static int finish_current_insert(struct btrfs_trans_handle *trans, struct - btrfs_root *extent_root, int all); -static int del_pending_extents(struct btrfs_trans_handle *trans, struct - btrfs_root *extent_root, int all); +static int finish_current_insert(struct btrfs_trans_handle *trans, + struct btrfs_root *extent_root, int all); +static int del_pending_extents(struct btrfs_trans_handle *trans, + struct btrfs_root *extent_root, int all); static int pin_down_bytes(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, u64 num_bytes, int is_data); @@ -247,7 +247,7 @@ static int cache_block_group(struct btrfs_root *root, if (ret < 0) goto err; - while(1) { + while (1) { leaf = path->nodes[0]; slot = path->slots[0]; if (slot >= btrfs_header_nritems(leaf)) { @@ -292,9 +292,8 @@ err: /* * return the block group that starts at or after bytenr */ -static struct btrfs_block_group_cache *btrfs_lookup_first_block_group(struct - btrfs_fs_info *info, - u64 bytenr) +static struct btrfs_block_group_cache * +btrfs_lookup_first_block_group(struct btrfs_fs_info *info, u64 bytenr) { struct btrfs_block_group_cache *cache; @@ -306,9 +305,9 @@ static struct btrfs_block_group_cache *btrfs_lookup_first_block_group(struct /* * return the block group that contains teh given bytenr */ -struct btrfs_block_group_cache *btrfs_lookup_block_group(struct - btrfs_fs_info *info, - u64 bytenr) +struct btrfs_block_group_cache *btrfs_lookup_block_group( + struct btrfs_fs_info *info, + u64 bytenr) { struct btrfs_block_group_cache *cache; @@ -492,7 +491,7 @@ int btrfs_lookup_extent(struct btrfs_root *root, u64 start, u64 len) * to the key objectid. */ -static int noinline lookup_extent_backref(struct btrfs_trans_handle *trans, +static noinline int lookup_extent_backref(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, u64 bytenr, u64 parent, @@ -537,7 +536,7 @@ out: * updates all the backrefs that are pending on update_list for the * extent_root */ -static int noinline update_backrefs(struct btrfs_trans_handle *trans, +static noinline int update_backrefs(struct btrfs_trans_handle *trans, struct btrfs_root *extent_root, struct btrfs_path *path, struct list_head *update_list) @@ -573,9 +572,11 @@ loop: btrfs_ref_generation(leaf, ref) != op->orig_generation || (ref_objectid != op->level && ref_objectid != BTRFS_MULTIPLE_OBJECTIDS)) { - printk(KERN_ERR "couldn't find %Lu, parent %Lu, root %Lu, " - "owner %u\n", op->bytenr, op->orig_parent, - ref_root, op->level); + printk(KERN_ERR "btrfs couldn't find %llu, parent %llu, " + "root %llu, owner %u\n", + (unsigned long long)op->bytenr, + (unsigned long long)op->orig_parent, + (unsigned long long)ref_root, op->level); btrfs_print_leaf(extent_root, leaf); BUG(); } @@ -620,7 +621,7 @@ out: return 0; } -static int noinline insert_extents(struct btrfs_trans_handle *trans, +static noinline int insert_extents(struct btrfs_trans_handle *trans, struct btrfs_root *extent_root, struct btrfs_path *path, struct list_head *insert_list, int nr) @@ -781,7 +782,7 @@ static int noinline insert_extents(struct btrfs_trans_handle *trans, return ret; } -static int noinline insert_extent_backref(struct btrfs_trans_handle *trans, +static noinline int insert_extent_backref(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, u64 bytenr, u64 parent, @@ -840,7 +841,7 @@ out: return ret; } -static int noinline remove_extent_backref(struct btrfs_trans_handle *trans, +static noinline int remove_extent_backref(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path) { @@ -868,7 +869,7 @@ static int noinline remove_extent_backref(struct btrfs_trans_handle *trans, static void btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len) { -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28) +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL); #else blkdev_issue_discard(bdev, start >> 9, len >> 9); @@ -908,7 +909,7 @@ static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr, #endif } -static int noinline free_extents(struct btrfs_trans_handle *trans, +static noinline int free_extents(struct btrfs_trans_handle *trans, struct btrfs_root *extent_root, struct list_head *del_list) { @@ -937,10 +938,11 @@ search: extent_root->root_key.objectid, op->orig_generation, op->level, 1); if (ret) { - printk("Unable to find backref byte nr %Lu root %Lu gen %Lu " - "owner %u\n", op->bytenr, - extent_root->root_key.objectid, op->orig_generation, - op->level); + printk(KERN_ERR "btrfs unable to find backref byte nr %llu " + "root %llu gen %llu owner %u\n", + (unsigned long long)op->bytenr, + (unsigned long long)extent_root->root_key.objectid, + (unsigned long long)op->orig_generation, op->level); btrfs_print_leaf(extent_root, path->nodes[0]); WARN_ON(1); goto out; @@ -1282,7 +1284,9 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, btrfs_item_key_to_cpu(l, &key, path->slots[0]); if (key.objectid != bytenr) { btrfs_print_leaf(root->fs_info->extent_root, path->nodes[0]); - printk("wanted %Lu found %Lu\n", bytenr, key.objectid); + printk(KERN_ERR "btrfs wanted %llu found %llu\n", + (unsigned long long)bytenr, + (unsigned long long)key.objectid); BUG(); } BUG_ON(key.type != BTRFS_EXTENT_ITEM_KEY); @@ -1353,7 +1357,8 @@ int btrfs_lookup_extent_ref(struct btrfs_trans_handle *trans, goto out; if (ret != 0) { btrfs_print_leaf(root, path->nodes[0]); - printk("failed to find block number %Lu\n", bytenr); + printk(KERN_INFO "btrfs failed to find block number %llu\n", + (unsigned long long)bytenr); BUG(); } l = path->nodes[0]; @@ -1738,7 +1743,7 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans, if (!path) return -ENOMEM; - while(1) { + while (1) { cache = NULL; spin_lock(&root->fs_info->block_group_cache_lock); for (n = rb_first(&root->fs_info->block_group_cache_tree); @@ -1921,10 +1926,8 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans, spin_unlock(&space_info->lock); ret = btrfs_alloc_chunk(trans, extent_root, flags); - if (ret) { -printk("space info full %Lu\n", flags); + if (ret) space_info->full = 1; - } out: mutex_unlock(&extent_root->fs_info->chunk_mutex); return ret; @@ -1941,7 +1944,7 @@ static int update_block_group(struct btrfs_trans_handle *trans, u64 old_val; u64 byte_in_group; - while(total) { + while (total) { cache = btrfs_lookup_block_group(info, bytenr); if (!cache) return -1; @@ -2089,7 +2092,7 @@ int btrfs_copy_pinned(struct btrfs_root *root, struct extent_io_tree *copy) int ret; mutex_lock(&root->fs_info->pinned_mutex); - while(1) { + while (1) { ret = find_first_extent_bit(pinned_extents, last, &start, &end, EXTENT_DIRTY); if (ret) @@ -2110,7 +2113,7 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, int ret; mutex_lock(&root->fs_info->pinned_mutex); - while(1) { + while (1) { ret = find_first_extent_bit(unpin, 0, &start, &end, EXTENT_DIRTY); if (ret) @@ -2400,7 +2403,7 @@ static int __free_extent(struct btrfs_trans_handle *trans, if (ret == 0) { struct btrfs_key found_key; extent_slot = path->slots[0]; - while(extent_slot > 0) { + while (extent_slot > 0) { extent_slot--; btrfs_item_key_to_cpu(path->nodes[0], &found_key, extent_slot); @@ -2422,8 +2425,8 @@ static int __free_extent(struct btrfs_trans_handle *trans, &key, path, -1, 1); if (ret) { printk(KERN_ERR "umm, got %d back from search" - ", was looking for %Lu\n", ret, - bytenr); + ", was looking for %llu\n", ret, + (unsigned long long)bytenr); btrfs_print_leaf(extent_root, path->nodes[0]); } BUG_ON(ret); @@ -2432,9 +2435,12 @@ static int __free_extent(struct btrfs_trans_handle *trans, } else { btrfs_print_leaf(extent_root, path->nodes[0]); WARN_ON(1); - printk("Unable to find ref byte nr %Lu root %Lu " - "gen %Lu owner %Lu\n", bytenr, - root_objectid, ref_generation, owner_objectid); + printk(KERN_ERR "btrfs unable to find ref byte nr %llu " + "root %llu gen %llu owner %llu\n", + (unsigned long long)bytenr, + (unsigned long long)root_objectid, + (unsigned long long)ref_generation, + (unsigned long long)owner_objectid); } leaf = path->nodes[0]; @@ -2517,8 +2523,8 @@ static int __free_extent(struct btrfs_trans_handle *trans, * find all the blocks marked as pending in the radix tree and remove * them from the extent map */ -static int del_pending_extents(struct btrfs_trans_handle *trans, struct - btrfs_root *extent_root, int all) +static int del_pending_extents(struct btrfs_trans_handle *trans, + struct btrfs_root *extent_root, int all) { int ret; int err = 0; @@ -2539,7 +2545,7 @@ static int del_pending_extents(struct btrfs_trans_handle *trans, struct again: mutex_lock(&info->extent_ins_mutex); - while(1) { + while (1) { ret = find_first_extent_bit(pending_del, search, &start, &end, EXTENT_WRITEBACK); if (ret) { @@ -2753,7 +2759,7 @@ static u64 stripe_align(struct btrfs_root *root, u64 val) * ins->offset == number of blocks * Any available blocks before search_start are skipped. */ -static int noinline find_free_extent(struct btrfs_trans_handle *trans, +static noinline int find_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root *orig_root, u64 num_bytes, u64 empty_size, u64 search_start, u64 search_end, @@ -2762,7 +2768,7 @@ static int noinline find_free_extent(struct btrfs_trans_handle *trans, int data) { int ret = 0; - struct btrfs_root * root = orig_root->fs_info->extent_root; + struct btrfs_root *root = orig_root->fs_info->extent_root; u64 total_needed = num_bytes; u64 *last_ptr = NULL; u64 last_wanted = 0; @@ -2995,8 +3001,10 @@ loop_check: *last_ptr = ins->objectid + ins->offset; ret = 0; } else if (!ret) { - printk(KERN_ERR "we were searching for %Lu bytes, num_bytes %Lu," - " loop %d, allowed_alloc %d\n", total_needed, num_bytes, + printk(KERN_ERR "btrfs searching for %llu bytes, " + "num_bytes %llu, loop %d, allowed_alloc %d\n", + (unsigned long long)total_needed, + (unsigned long long)num_bytes, loop, allowed_chunk_alloc); ret = -ENOSPC; } @@ -3012,19 +3020,22 @@ static void dump_space_info(struct btrfs_space_info *info, u64 bytes) struct btrfs_block_group_cache *cache; struct list_head *l; - printk(KERN_INFO "space_info has %Lu free, is %sfull\n", - info->total_bytes - info->bytes_used - info->bytes_pinned - - info->bytes_reserved, (info->full) ? "" : "not "); + printk(KERN_INFO "space_info has %llu free, is %sfull\n", + (unsigned long long)(info->total_bytes - info->bytes_used - + info->bytes_pinned - info->bytes_reserved), + (info->full) ? "" : "not "); down_read(&info->groups_sem); list_for_each(l, &info->block_groups) { cache = list_entry(l, struct btrfs_block_group_cache, list); spin_lock(&cache->lock); - printk(KERN_INFO "block group %Lu has %Lu bytes, %Lu used " - "%Lu pinned %Lu reserved\n", - cache->key.objectid, cache->key.offset, - btrfs_block_group_used(&cache->item), - cache->pinned, cache->reserved); + printk(KERN_INFO "block group %llu has %llu bytes, %llu used " + "%llu pinned %llu reserved\n", + (unsigned long long)cache->key.objectid, + (unsigned long long)cache->key.offset, + (unsigned long long)btrfs_block_group_used(&cache->item), + (unsigned long long)cache->pinned, + (unsigned long long)cache->reserved); btrfs_dump_free_space(cache, bytes); spin_unlock(&cache->lock); } @@ -3045,15 +3056,15 @@ static int __btrfs_reserve_extent(struct btrfs_trans_handle *trans, if (data) { alloc_profile = info->avail_data_alloc_bits & - info->data_alloc_profile; + info->data_alloc_profile; data = BTRFS_BLOCK_GROUP_DATA | alloc_profile; } else if (root == root->fs_info->chunk_root) { alloc_profile = info->avail_system_alloc_bits & - info->system_alloc_profile; + info->system_alloc_profile; data = BTRFS_BLOCK_GROUP_SYSTEM | alloc_profile; } else { alloc_profile = info->avail_metadata_alloc_bits & - info->metadata_alloc_profile; + info->metadata_alloc_profile; data = BTRFS_BLOCK_GROUP_METADATA | alloc_profile; } again: @@ -3092,8 +3103,9 @@ again: struct btrfs_space_info *sinfo; sinfo = __find_space_info(root->fs_info, data); - printk("allocation failed flags %Lu, wanted %Lu\n", - data, num_bytes); + printk(KERN_ERR "btrfs allocation failed flags %llu, " + "wanted %llu\n", (unsigned long long)data, + (unsigned long long)num_bytes); dump_space_info(sinfo, num_bytes); BUG(); } @@ -3108,7 +3120,8 @@ int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len) cache = btrfs_lookup_block_group(root->fs_info, start); if (!cache) { - printk(KERN_ERR "Unable to find block group for %Lu\n", start); + printk(KERN_ERR "Unable to find block group for %llu\n", + (unsigned long long)start); return -ENOSPC; } @@ -3235,10 +3248,12 @@ static int __btrfs_alloc_reserved_extent(struct btrfs_trans_handle *trans, } update_block: - ret = update_block_group(trans, root, ins->objectid, ins->offset, 1, 0); + ret = update_block_group(trans, root, ins->objectid, + ins->offset, 1, 0); if (ret) { - printk("update block group failed for %Lu %Lu\n", - ins->objectid, ins->offset); + printk(KERN_ERR "btrfs update block group failed for %llu " + "%llu\n", (unsigned long long)ins->objectid, + (unsigned long long)ins->offset); BUG(); } out: @@ -3420,7 +3435,7 @@ int btrfs_drop_leaf_ref(struct btrfs_trans_handle *trans, return 0; } -static int noinline cache_drop_leaf_ref(struct btrfs_trans_handle *trans, +static noinline int cache_drop_leaf_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_leaf_ref *ref) { @@ -3445,15 +3460,15 @@ static int noinline cache_drop_leaf_ref(struct btrfs_trans_handle *trans, return 0; } -static int drop_snap_lookup_refcount(struct btrfs_root *root, u64 start, u64 len, - u32 *refs) +static int drop_snap_lookup_refcount(struct btrfs_root *root, u64 start, + u64 len, u32 *refs) { int ret; ret = btrfs_lookup_extent_ref(NULL, root, start, len, refs); BUG_ON(ret); -#if 0 // some debugging code in case we see problems here +#if 0 /* some debugging code in case we see problems here */ /* if the refs count is one, it won't get increased again. But * if the ref count is > 1, someone may be decreasing it at * the same time we are. @@ -3474,8 +3489,8 @@ static int drop_snap_lookup_refcount(struct btrfs_root *root, u64 start, u64 len free_extent_buffer(eb); } if (*refs == 1) { - printk("block %llu went down to one during drop_snap\n", - (unsigned long long)start); + printk(KERN_ERR "btrfs block %llu went down to one " + "during drop_snap\n", (unsigned long long)start); } } @@ -3489,7 +3504,7 @@ static int drop_snap_lookup_refcount(struct btrfs_root *root, u64 start, u64 len * helper function for drop_snapshot, this walks down the tree dropping ref * counts as it goes. */ -static int noinline walk_down_tree(struct btrfs_trans_handle *trans, +static noinline int walk_down_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int *level) { @@ -3516,7 +3531,7 @@ static int noinline walk_down_tree(struct btrfs_trans_handle *trans, /* * walk down to the last node level and free all the leaves */ - while(*level >= 0) { + while (*level >= 0) { WARN_ON(*level < 0); WARN_ON(*level >= BTRFS_MAX_LEVEL); cur = path->nodes[*level]; @@ -3576,10 +3591,6 @@ static int noinline walk_down_tree(struct btrfs_trans_handle *trans, *level = 0; break; } - if (printk_ratelimit()) { - printk("leaf ref miss for bytenr %llu\n", - (unsigned long long)bytenr); - } } next = btrfs_find_tree_block(root, bytenr, blocksize); if (!next || !btrfs_buffer_uptodate(next, ptr_gen)) { @@ -3641,7 +3652,7 @@ out: * walk_down_tree. The main difference is that it checks reference * counts while tree blocks are locked. */ -static int noinline walk_down_subtree(struct btrfs_trans_handle *trans, +static noinline int walk_down_subtree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int *level) { @@ -3730,7 +3741,7 @@ out: * to find the first node higher up where we haven't yet gone through * all the slots */ -static int noinline walk_up_tree(struct btrfs_trans_handle *trans, +static noinline int walk_up_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int *level, int max_level) @@ -3839,7 +3850,7 @@ int btrfs_drop_snapshot(struct btrfs_trans_handle *trans, struct btrfs_root } } } - while(1) { + while (1) { wret = walk_down_tree(trans, root, path, &level); if (wret > 0) break; @@ -3920,7 +3931,7 @@ static unsigned long calc_ra(unsigned long start, unsigned long last, return min(last, start + nr - 1); } -static int noinline relocate_inode_pages(struct inode *inode, u64 start, +static noinline int relocate_inode_pages(struct inode *inode, u64 start, u64 len) { u64 page_start; @@ -4011,7 +4022,7 @@ out_unlock: return ret; } -static int noinline relocate_data_extent(struct inode *reloc_inode, +static noinline int relocate_data_extent(struct inode *reloc_inode, struct btrfs_key *extent_key, u64 offset) { @@ -4087,7 +4098,7 @@ static int is_cowonly_root(u64 root_objectid) return 0; } -static int noinline __next_ref_path(struct btrfs_trans_handle *trans, +static noinline int __next_ref_path(struct btrfs_trans_handle *trans, struct btrfs_root *extent_root, struct btrfs_ref_path *ref_path, int first_time) @@ -4119,11 +4130,10 @@ walk_down: if (level < ref_path->lowest_level) break; - if (level >= 0) { + if (level >= 0) bytenr = ref_path->nodes[level]; - } else { + else bytenr = ref_path->extent_start; - } BUG_ON(bytenr == 0); parent = ref_path->nodes[level + 1]; @@ -4170,11 +4180,12 @@ walk_up: level = ref_path->current_level; while (level < BTRFS_MAX_LEVEL - 1) { u64 ref_objectid; - if (level >= 0) { + + if (level >= 0) bytenr = ref_path->nodes[level]; - } else { + else bytenr = ref_path->extent_start; - } + BUG_ON(bytenr == 0); key.objectid = bytenr; @@ -4299,7 +4310,7 @@ static int btrfs_next_ref_path(struct btrfs_trans_handle *trans, return __next_ref_path(trans, extent_root, ref_path, 0); } -static int noinline get_new_locations(struct inode *reloc_inode, +static noinline int get_new_locations(struct inode *reloc_inode, struct btrfs_key *extent_key, u64 offset, int no_fragment, struct disk_extent **extents, @@ -4420,7 +4431,7 @@ out: return ret; } -static int noinline replace_one_extent(struct btrfs_trans_handle *trans, +static noinline int replace_one_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *extent_key, @@ -4778,7 +4789,7 @@ int btrfs_reloc_tree_cache_ref(struct btrfs_trans_handle *trans, return 0; } -static int noinline invalidate_extent_cache(struct btrfs_root *root, +static noinline int invalidate_extent_cache(struct btrfs_root *root, struct extent_buffer *leaf, struct btrfs_block_group_cache *group, struct btrfs_root *target_root) @@ -4826,7 +4837,7 @@ static int noinline invalidate_extent_cache(struct btrfs_root *root, return 0; } -static int noinline replace_extents_in_leaf(struct btrfs_trans_handle *trans, +static noinline int replace_extents_in_leaf(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *leaf, struct btrfs_block_group_cache *group, @@ -5035,7 +5046,7 @@ int btrfs_cleanup_reloc_trees(struct btrfs_root *root) return 0; } -static int noinline init_reloc_tree(struct btrfs_trans_handle *trans, +static noinline int init_reloc_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root) { struct btrfs_root *reloc_root; @@ -5102,7 +5113,7 @@ static int noinline init_reloc_tree(struct btrfs_trans_handle *trans, * tree blocks are shared between reloc trees, so they are also shared * between subvols. */ -static int noinline relocate_one_path(struct btrfs_trans_handle *trans, +static noinline int relocate_one_path(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *first_key, @@ -5199,7 +5210,7 @@ static int noinline relocate_one_path(struct btrfs_trans_handle *trans, return 0; } -static int noinline relocate_tree_block(struct btrfs_trans_handle *trans, +static noinline int relocate_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *first_key, @@ -5217,7 +5228,7 @@ static int noinline relocate_tree_block(struct btrfs_trans_handle *trans, return 0; } -static int noinline del_extent_zero(struct btrfs_trans_handle *trans, +static noinline int del_extent_zero(struct btrfs_trans_handle *trans, struct btrfs_root *extent_root, struct btrfs_path *path, struct btrfs_key *extent_key) @@ -5233,7 +5244,7 @@ out: return ret; } -static struct btrfs_root noinline *read_ref_root(struct btrfs_fs_info *fs_info, +static noinline struct btrfs_root *read_ref_root(struct btrfs_fs_info *fs_info, struct btrfs_ref_path *ref_path) { struct btrfs_key root_key; @@ -5248,7 +5259,7 @@ static struct btrfs_root noinline *read_ref_root(struct btrfs_fs_info *fs_info, return btrfs_read_fs_root_no_name(fs_info, &root_key); } -static int noinline relocate_one_extent(struct btrfs_root *extent_root, +static noinline int relocate_one_extent(struct btrfs_root *extent_root, struct btrfs_path *path, struct btrfs_key *extent_key, struct btrfs_block_group_cache *group, @@ -5276,8 +5287,8 @@ static int noinline relocate_one_extent(struct btrfs_root *extent_root, ref_path = kmalloc(sizeof(*ref_path), GFP_NOFS); if (!ref_path) { - ret = -ENOMEM; - goto out; + ret = -ENOMEM; + goto out; } for (loops = 0; ; loops++) { @@ -5497,7 +5508,7 @@ out: return ret; } -static struct inode noinline *create_reloc_inode(struct btrfs_fs_info *fs_info, +static noinline struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info, struct btrfs_block_group_cache *group) { struct inode *inode = NULL; @@ -5617,7 +5628,7 @@ int btrfs_relocate_block_group(struct btrfs_root *root, u64 group_start) block_group = btrfs_lookup_block_group(info, group_start); BUG_ON(!block_group); - printk("btrfs relocating block group %llu flags %llu\n", + printk(KERN_INFO "btrfs relocating block group %llu flags %llu\n", (unsigned long long)block_group->key.objectid, (unsigned long long)block_group->flags); @@ -5649,7 +5660,7 @@ again: btrfs_remove_leaf_refs(info->tree_root, (u64)-1, 1); mutex_unlock(&root->fs_info->cleaner_mutex); - while(1) { + while (1) { ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) goto out; @@ -5712,7 +5723,7 @@ next: } if (total_found > 0) { - printk("btrfs found %llu extents in pass %d\n", + printk(KERN_INFO "btrfs found %llu extents in pass %d\n", (unsigned long long)total_found, pass); pass++; if (total_found == skipped && pass > 2) { @@ -5754,7 +5765,7 @@ static int find_first_block_group(struct btrfs_root *root, if (ret < 0) goto out; - while(1) { + while (1) { slot = path->slots[0]; leaf = path->nodes[0]; if (slot >= btrfs_header_nritems(leaf)) { @@ -5825,7 +5836,7 @@ int btrfs_read_block_groups(struct btrfs_root *root) if (!path) return -ENOMEM; - while(1) { + while (1) { ret = find_first_block_group(root, path, &key); if (ret > 0) { ret = 0; diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 0bf7684207a..39edb551dca 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -32,7 +32,7 @@ static LIST_HEAD(states); #define LEAK_DEBUG 0 #ifdef LEAK_DEBUG -static spinlock_t leak_lock = SPIN_LOCK_UNLOCKED; +static DEFINE_SPINLOCK(leak_lock); #endif #define BUFFER_LRU_MAX 64 @@ -81,7 +81,11 @@ void extent_io_exit(void) while (!list_empty(&states)) { state = list_entry(states.next, struct extent_state, leak_list); - printk("state leak: start %Lu end %Lu state %lu in tree %p refs %d\n", state->start, state->end, state->state, state->tree, atomic_read(&state->refs)); + printk(KERN_ERR "btrfs state leak: start %llu end %llu " + "state %lu in tree %p refs %d\n", + (unsigned long long)state->start, + (unsigned long long)state->end, + state->state, state->tree, atomic_read(&state->refs)); list_del(&state->leak_list); kmem_cache_free(extent_state_cache, state); @@ -89,7 +93,9 @@ void extent_io_exit(void) while (!list_empty(&buffers)) { eb = list_entry(buffers.next, struct extent_buffer, leak_list); - printk("buffer leak start %Lu len %lu refs %d\n", eb->start, eb->len, atomic_read(&eb->refs)); + printk(KERN_ERR "btrfs buffer leak start %llu len %lu " + "refs %d\n", (unsigned long long)eb->start, + eb->len, atomic_read(&eb->refs)); list_del(&eb->leak_list); kmem_cache_free(extent_buffer_cache, eb); } @@ -158,11 +164,11 @@ EXPORT_SYMBOL(free_extent_state); static struct rb_node *tree_insert(struct rb_root *root, u64 offset, struct rb_node *node) { - struct rb_node ** p = &root->rb_node; - struct rb_node * parent = NULL; + struct rb_node **p = &root->rb_node; + struct rb_node *parent = NULL; struct tree_entry *entry; - while(*p) { + while (*p) { parent = *p; entry = rb_entry(parent, struct tree_entry, rb_node); @@ -185,13 +191,13 @@ static struct rb_node *__etree_search(struct extent_io_tree *tree, u64 offset, struct rb_node **next_ret) { struct rb_root *root = &tree->state; - struct rb_node * n = root->rb_node; + struct rb_node *n = root->rb_node; struct rb_node *prev = NULL; struct rb_node *orig_prev = NULL; struct tree_entry *entry; struct tree_entry *prev_entry = NULL; - while(n) { + while (n) { entry = rb_entry(n, struct tree_entry, rb_node); prev = n; prev_entry = entry; @@ -200,14 +206,13 @@ static struct rb_node *__etree_search(struct extent_io_tree *tree, u64 offset, n = n->rb_left; else if (offset > entry->end) n = n->rb_right; - else { + else return n; - } } if (prev_ret) { orig_prev = prev; - while(prev && offset > prev_entry->end) { + while (prev && offset > prev_entry->end) { prev = rb_next(prev); prev_entry = rb_entry(prev, struct tree_entry, rb_node); } @@ -217,7 +222,7 @@ static struct rb_node *__etree_search(struct extent_io_tree *tree, u64 offset, if (next_ret) { prev_entry = rb_entry(prev, struct tree_entry, rb_node); - while(prev && offset < prev_entry->start) { + while (prev && offset < prev_entry->start) { prev = rb_prev(prev); prev_entry = rb_entry(prev, struct tree_entry, rb_node); } @@ -233,9 +238,8 @@ static inline struct rb_node *tree_search(struct extent_io_tree *tree, struct rb_node *ret; ret = __etree_search(tree, offset, &prev, NULL); - if (!ret) { + if (!ret) return prev; - } return ret; } @@ -243,11 +247,11 @@ static struct extent_buffer *buffer_tree_insert(struct extent_io_tree *tree, u64 offset, struct rb_node *node) { struct rb_root *root = &tree->buffer; - struct rb_node ** p = &root->rb_node; - struct rb_node * parent = NULL; + struct rb_node **p = &root->rb_node; + struct rb_node *parent = NULL; struct extent_buffer *eb; - while(*p) { + while (*p) { parent = *p; eb = rb_entry(parent, struct extent_buffer, rb_node); @@ -268,10 +272,10 @@ static struct extent_buffer *buffer_search(struct extent_io_tree *tree, u64 offset) { struct rb_root *root = &tree->buffer; - struct rb_node * n = root->rb_node; + struct rb_node *n = root->rb_node; struct extent_buffer *eb; - while(n) { + while (n) { eb = rb_entry(n, struct extent_buffer, rb_node); if (offset < eb->start) n = n->rb_left; @@ -363,7 +367,9 @@ static int insert_state(struct extent_io_tree *tree, struct rb_node *node; if (end < start) { - printk("end < start %Lu %Lu\n", end, start); + printk(KERN_ERR "btrfs end < start %llu %llu\n", + (unsigned long long)end, + (unsigned long long)start); WARN_ON(1); } if (bits & EXTENT_DIRTY) @@ -376,7 +382,10 @@ static int insert_state(struct extent_io_tree *tree, if (node) { struct extent_state *found; found = rb_entry(node, struct extent_state, rb_node); - printk("found node %Lu %Lu on insert of %Lu %Lu\n", found->start, found->end, start, end); + printk(KERN_ERR "btrfs found node %llu %llu on insert of " + "%llu %llu\n", (unsigned long long)found->start, + (unsigned long long)found->end, + (unsigned long long)start, (unsigned long long)end); free_extent_state(state); return -EEXIST; } @@ -412,7 +421,6 @@ static int split_state(struct extent_io_tree *tree, struct extent_state *orig, if (node) { struct extent_state *found; found = rb_entry(node, struct extent_state, rb_node); - printk("found node %Lu %Lu on insert of %Lu %Lu\n", found->start, found->end, prealloc->start, prealloc->end); free_extent_state(prealloc); return -EEXIST; } @@ -661,8 +669,9 @@ static void set_state_bits(struct extent_io_tree *tree, * [start, end] is inclusive * This takes the tree lock. */ -static int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, int bits, - int exclusive, u64 *failed_start, gfp_t mask) +static int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, + int bits, int exclusive, u64 *failed_start, + gfp_t mask) { struct extent_state *state; struct extent_state *prealloc = NULL; @@ -763,7 +772,7 @@ again: if (end < last_start) this_end = end; else - this_end = last_start -1; + this_end = last_start - 1; err = insert_state(tree, prealloc, start, this_end, bits); prealloc = NULL; @@ -891,8 +900,8 @@ int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end, } EXPORT_SYMBOL(set_extent_uptodate); -static int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end, - gfp_t mask) +static int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, + u64 end, gfp_t mask) { return clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, 0, mask); } @@ -904,8 +913,8 @@ static int set_extent_writeback(struct extent_io_tree *tree, u64 start, u64 end, 0, NULL, mask); } -static int clear_extent_writeback(struct extent_io_tree *tree, u64 start, u64 end, - gfp_t mask) +static int clear_extent_writeback(struct extent_io_tree *tree, u64 start, + u64 end, gfp_t mask) { return clear_extent_bit(tree, start, end, EXTENT_WRITEBACK, 1, 0, mask); } @@ -1025,11 +1034,10 @@ int find_first_extent_bit(struct extent_io_tree *tree, u64 start, * our range starts. */ node = tree_search(tree, start); - if (!node) { + if (!node) goto out; - } - while(1) { + while (1) { state = rb_entry(node, struct extent_state, rb_node); if (state->end >= start && (state->state & bits)) { *start_ret = state->start; @@ -1062,15 +1070,14 @@ struct extent_state *find_first_extent_bit_state(struct extent_io_tree *tree, * our range starts. */ node = tree_search(tree, start); - if (!node) { + if (!node) goto out; - } - while(1) { + while (1) { state = rb_entry(node, struct extent_state, rb_node); - if (state->end >= start && (state->state & bits)) { + if (state->end >= start && (state->state & bits)) return state; - } + node = rb_next(node); if (!node) break; @@ -1108,7 +1115,7 @@ static noinline u64 find_delalloc_range(struct extent_io_tree *tree, goto out; } - while(1) { + while (1) { state = rb_entry(node, struct extent_state, rb_node); if (found && (state->start != cur_start || (state->state & EXTENT_BOUNDARY))) { @@ -1150,7 +1157,7 @@ static noinline int __unlock_for_delalloc(struct inode *inode, if (index == locked_page->index && end_index == index) return 0; - while(nr_pages > 0) { + while (nr_pages > 0) { ret = find_get_pages_contig(inode->i_mapping, index, min_t(unsigned long, nr_pages, ARRAY_SIZE(pages)), pages); @@ -1186,7 +1193,7 @@ static noinline int lock_delalloc_pages(struct inode *inode, /* skip the page at the start index */ nrpages = end_index - index + 1; - while(nrpages > 0) { + while (nrpages > 0) { ret = find_get_pages_contig(inode->i_mapping, index, min_t(unsigned long, nrpages, ARRAY_SIZE(pages)), pages); @@ -1263,17 +1270,16 @@ again: * pages in order, so we can't process delalloc bytes before * locked_page */ - if (delalloc_start < *start) { + if (delalloc_start < *start) delalloc_start = *start; - } /* * make sure to limit the number of pages we try to lock down * if we're looping. */ - if (delalloc_end + 1 - delalloc_start > max_bytes && loops) { + if (delalloc_end + 1 - delalloc_start > max_bytes && loops) delalloc_end = delalloc_start + PAGE_CACHE_SIZE - 1; - } + /* step two, lock all the pages after the page that has start */ ret = lock_delalloc_pages(inode, locked_page, delalloc_start, delalloc_end); @@ -1341,7 +1347,7 @@ int extent_clear_unlock_delalloc(struct inode *inode, if (!(unlock_pages || clear_dirty || set_writeback || end_writeback)) return 0; - while(nr_pages > 0) { + while (nr_pages > 0) { ret = find_get_pages_contig(inode->i_mapping, index, min_t(unsigned long, nr_pages, ARRAY_SIZE(pages)), pages); @@ -1384,7 +1390,6 @@ u64 count_range_bits(struct extent_io_tree *tree, int found = 0; if (search_end <= cur_start) { - printk("search_end %Lu start %Lu\n", search_end, cur_start); WARN_ON(1); return 0; } @@ -1399,11 +1404,10 @@ u64 count_range_bits(struct extent_io_tree *tree, * our range starts. */ node = tree_search(tree, cur_start); - if (!node) { + if (!node) goto out; - } - while(1) { + while (1) { state = rb_entry(node, struct extent_state, rb_node); if (state->start > search_end) break; @@ -1927,19 +1931,15 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree, nr = bio_get_nr_vecs(bdev); bio = extent_bio_alloc(bdev, sector, nr, GFP_NOFS | __GFP_HIGH); - if (!bio) { - printk("failed to allocate bio nr %d\n", nr); - } bio_add_page(bio, page, page_size, offset); bio->bi_end_io = end_io_func; bio->bi_private = tree; - if (bio_ret) { + if (bio_ret) *bio_ret = bio; - } else { + else ret = submit_one_bio(rw, bio, mirror_num, bio_flags); - } return ret; } @@ -2028,13 +2028,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree, break; } extent_offset = cur - em->start; - if (extent_map_end(em) <= cur) { -printk("bad mapping em [%Lu %Lu] cur %Lu\n", em->start, extent_map_end(em), cur); - } BUG_ON(extent_map_end(em) <= cur); - if (end < cur) { -printk("2bad mapping end %Lu cur %Lu\n", end, cur); - } BUG_ON(end < cur); if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)) @@ -2199,7 +2193,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, delalloc_end = 0; page_started = 0; if (!epd->extent_locked) { - while(delalloc_end < page_end) { + while (delalloc_end < page_end) { nr_delalloc = find_lock_delalloc_range(inode, tree, page, &delalloc_start, @@ -2242,9 +2236,8 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, nr_written++; end = page_end; - if (test_range_bit(tree, start, page_end, EXTENT_DELALLOC, 0)) { - printk("found delalloc bits after lock_extent\n"); - } + if (test_range_bit(tree, start, page_end, EXTENT_DELALLOC, 0)) + printk(KERN_ERR "btrfs delalloc bits after lock_extent\n"); if (last_byte <= start) { clear_extent_dirty(tree, start, page_end, GFP_NOFS); @@ -2297,7 +2290,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, clear_extent_dirty(tree, cur, cur + iosize - 1, GFP_NOFS); - unlock_extent(tree, unlock_start, cur + iosize -1, + unlock_extent(tree, unlock_start, cur + iosize - 1, GFP_NOFS); /* @@ -2344,9 +2337,9 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, set_range_writeback(tree, cur, cur + iosize - 1); if (!PageWriteback(page)) { - printk("warning page %lu not writeback, " - "cur %llu end %llu\n", page->index, - (unsigned long long)cur, + printk(KERN_ERR "btrfs warning page %lu not " + "writeback, cur %llu end %llu\n", + page->index, (unsigned long long)cur, (unsigned long long)end); } @@ -2430,8 +2423,8 @@ static int extent_write_cache_pages(struct extent_io_tree *tree, retry: while (!done && (index <= end) && (nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, - PAGECACHE_TAG_DIRTY, - min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1))) { + PAGECACHE_TAG_DIRTY, min(end - index, + (pgoff_t)PAGEVEC_SIZE-1) + 1))) { unsigned i; scanned = 1; @@ -2536,9 +2529,8 @@ int extent_write_full_page(struct extent_io_tree *tree, struct page *page, extent_write_cache_pages(tree, mapping, &wbc_writepages, __extent_writepage, &epd, flush_write_bio); - if (epd.bio) { + if (epd.bio) submit_one_bio(WRITE, epd.bio, 0, 0); - } return ret; } EXPORT_SYMBOL(extent_write_full_page); @@ -2568,7 +2560,7 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode, .range_end = end + 1, }; - while(start <= end) { + while (start <= end) { page = find_get_page(mapping, start >> PAGE_CACHE_SHIFT); if (clear_page_dirty_for_io(page)) ret = __extent_writepage(page, &wbc_writepages, &epd); @@ -2606,9 +2598,8 @@ int extent_writepages(struct extent_io_tree *tree, ret = extent_write_cache_pages(tree, mapping, wbc, __extent_writepage, &epd, flush_write_bio); - if (epd.bio) { + if (epd.bio) submit_one_bio(WRITE, epd.bio, 0, 0); - } return ret; } EXPORT_SYMBOL(extent_writepages); @@ -2666,7 +2657,7 @@ int extent_invalidatepage(struct extent_io_tree *tree, u64 end = start + PAGE_CACHE_SIZE - 1; size_t blocksize = page->mapping->host->i_sb->s_blocksize; - start += (offset + blocksize -1) & ~(blocksize - 1); + start += (offset + blocksize - 1) & ~(blocksize - 1); if (start > end) return 0; @@ -2727,12 +2718,12 @@ int extent_prepare_write(struct extent_io_tree *tree, orig_block_start = block_start; lock_extent(tree, page_start, page_end, GFP_NOFS); - while(block_start <= block_end) { + while (block_start <= block_end) { em = get_extent(inode, page, page_offset, block_start, block_end - block_start + 1, 1); - if (IS_ERR(em) || !em) { + if (IS_ERR(em) || !em) goto err; - } + cur_end = min(block_end, extent_map_end(em) - 1); block_off_start = block_start & (PAGE_CACHE_SIZE - 1); block_off_end = block_off_start + blocksize; @@ -3170,7 +3161,7 @@ int set_extent_buffer_dirty(struct extent_io_tree *tree, } __set_page_dirty_nobuffers(extent_buffer_page(eb, i)); set_extent_dirty(tree, page_offset(page), - page_offset(page) + PAGE_CACHE_SIZE -1, + page_offset(page) + PAGE_CACHE_SIZE - 1, GFP_NOFS); unlock_page(page); } @@ -3235,7 +3226,7 @@ int extent_range_uptodate(struct extent_io_tree *tree, ret = test_range_bit(tree, start, end, EXTENT_UPTODATE, 1); if (ret) return 1; - while(start <= end) { + while (start <= end) { index = start >> PAGE_CACHE_SHIFT; page = find_get_page(tree->mapping, index); uptodate = PageUptodate(page); @@ -3321,16 +3312,12 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, lock_page(page); } locked_pages++; - if (!PageUptodate(page)) { + if (!PageUptodate(page)) all_uptodate = 0; - } } if (all_uptodate) { if (start_i == 0) eb->flags |= EXTENT_UPTODATE; - if (ret) { - printk("all up to date but ret is %d\n", ret); - } goto unlock_exit; } @@ -3345,10 +3332,8 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, err = __extent_read_full_page(tree, page, get_extent, &bio, mirror_num, &bio_flags); - if (err) { + if (err) ret = err; - printk("err %d from __extent_read_full_page\n", ret); - } } else { unlock_page(page); } @@ -3357,26 +3342,23 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, if (bio) submit_one_bio(READ, bio, mirror_num, bio_flags); - if (ret || !wait) { - if (ret) - printk("ret %d wait %d returning\n", ret, wait); + if (ret || !wait) return ret; - } + for (i = start_i; i < num_pages; i++) { page = extent_buffer_page(eb, i); wait_on_page_locked(page); - if (!PageUptodate(page)) { - printk("page not uptodate after wait_on_page_locked\n"); + if (!PageUptodate(page)) ret = -EIO; - } } + if (!ret) eb->flags |= EXTENT_UPTODATE; return ret; unlock_exit: i = start_i; - while(locked_pages > 0) { + while (locked_pages > 0) { page = extent_buffer_page(eb, i); i++; unlock_page(page); @@ -3403,7 +3385,7 @@ void read_extent_buffer(struct extent_buffer *eb, void *dstv, offset = (start_offset + start) & ((unsigned long)PAGE_CACHE_SIZE - 1); - while(len > 0) { + while (len > 0) { page = extent_buffer_page(eb, i); cur = min(len, (PAGE_CACHE_SIZE - offset)); @@ -3442,8 +3424,11 @@ int map_private_extent_buffer(struct extent_buffer *eb, unsigned long start, offset = 0; *map_start = ((u64)i << PAGE_CACHE_SHIFT) - start_offset; } + if (start + min_len > eb->len) { -printk("bad mapping eb start %Lu len %lu, wanted %lu %lu\n", eb->start, eb->len, start, min_len); + printk(KERN_ERR "btrfs bad mapping eb start %llu len %lu, " + "wanted %lu %lu\n", (unsigned long long)eb->start, + eb->len, start, min_len); WARN_ON(1); } @@ -3506,7 +3491,7 @@ int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv, offset = (start_offset + start) & ((unsigned long)PAGE_CACHE_SIZE - 1); - while(len > 0) { + while (len > 0) { page = extent_buffer_page(eb, i); cur = min(len, (PAGE_CACHE_SIZE - offset)); @@ -3542,7 +3527,7 @@ void write_extent_buffer(struct extent_buffer *eb, const void *srcv, offset = (start_offset + start) & ((unsigned long)PAGE_CACHE_SIZE - 1); - while(len > 0) { + while (len > 0) { page = extent_buffer_page(eb, i); WARN_ON(!PageUptodate(page)); @@ -3574,7 +3559,7 @@ void memset_extent_buffer(struct extent_buffer *eb, char c, offset = (start_offset + start) & ((unsigned long)PAGE_CACHE_SIZE - 1); - while(len > 0) { + while (len > 0) { page = extent_buffer_page(eb, i); WARN_ON(!PageUptodate(page)); @@ -3607,7 +3592,7 @@ void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src, offset = (start_offset + dst_offset) & ((unsigned long)PAGE_CACHE_SIZE - 1); - while(len > 0) { + while (len > 0) { page = extent_buffer_page(dst, i); WARN_ON(!PageUptodate(page)); @@ -3674,17 +3659,17 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset, unsigned long src_i; if (src_offset + len > dst->len) { - printk("memmove bogus src_offset %lu move len %lu len %lu\n", - src_offset, len, dst->len); + printk(KERN_ERR "btrfs memmove bogus src_offset %lu move " + "len %lu dst len %lu\n", src_offset, len, dst->len); BUG_ON(1); } if (dst_offset + len > dst->len) { - printk("memmove bogus dst_offset %lu move len %lu len %lu\n", - dst_offset, len, dst->len); + printk(KERN_ERR "btrfs memmove bogus dst_offset %lu move " + "len %lu dst len %lu\n", dst_offset, len, dst->len); BUG_ON(1); } - while(len > 0) { + while (len > 0) { dst_off_in_page = (start_offset + dst_offset) & ((unsigned long)PAGE_CACHE_SIZE - 1); src_off_in_page = (start_offset + src_offset) & @@ -3722,20 +3707,20 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset, unsigned long src_i; if (src_offset + len > dst->len) { - printk("memmove bogus src_offset %lu move len %lu len %lu\n", - src_offset, len, dst->len); + printk(KERN_ERR "btrfs memmove bogus src_offset %lu move " + "len %lu len %lu\n", src_offset, len, dst->len); BUG_ON(1); } if (dst_offset + len > dst->len) { - printk("memmove bogus dst_offset %lu move len %lu len %lu\n", - dst_offset, len, dst->len); + printk(KERN_ERR "btrfs memmove bogus dst_offset %lu move " + "len %lu len %lu\n", dst_offset, len, dst->len); BUG_ON(1); } if (dst_offset < src_offset) { memcpy_extent_buffer(dst, dst_offset, src_offset, len); return; } - while(len > 0) { + while (len > 0) { dst_i = (start_offset + dst_end) >> PAGE_CACHE_SHIFT; src_i = (start_offset + src_end) >> PAGE_CACHE_SHIFT; diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index fd3ebfb8c3c..4a83e33ada3 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -89,11 +89,11 @@ EXPORT_SYMBOL(free_extent_map); static struct rb_node *tree_insert(struct rb_root *root, u64 offset, struct rb_node *node) { - struct rb_node ** p = &root->rb_node; - struct rb_node * parent = NULL; + struct rb_node **p = &root->rb_node; + struct rb_node *parent = NULL; struct extent_map *entry; - while(*p) { + while (*p) { parent = *p; entry = rb_entry(parent, struct extent_map, rb_node); @@ -122,13 +122,13 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 offset, struct rb_node **prev_ret, struct rb_node **next_ret) { - struct rb_node * n = root->rb_node; + struct rb_node *n = root->rb_node; struct rb_node *prev = NULL; struct rb_node *orig_prev = NULL; struct extent_map *entry; struct extent_map *prev_entry = NULL; - while(n) { + while (n) { entry = rb_entry(n, struct extent_map, rb_node); prev = n; prev_entry = entry; @@ -145,7 +145,7 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 offset, if (prev_ret) { orig_prev = prev; - while(prev && offset >= extent_map_end(prev_entry)) { + while (prev && offset >= extent_map_end(prev_entry)) { prev = rb_next(prev); prev_entry = rb_entry(prev, struct extent_map, rb_node); } @@ -155,7 +155,7 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 offset, if (next_ret) { prev_entry = rb_entry(prev, struct extent_map, rb_node); - while(prev && offset < prev_entry->start) { + while (prev && offset < prev_entry->start) { prev = rb_prev(prev); prev_entry = rb_entry(prev, struct extent_map, rb_node); } diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index cc6e0b6de94..b11abfad81a 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -24,7 +24,7 @@ #include "transaction.h" #include "print-tree.h" -#define MAX_CSUM_ITEMS(r,size) ((((BTRFS_LEAF_DATA_SIZE(r) - \ +#define MAX_CSUM_ITEMS(r, size) ((((BTRFS_LEAF_DATA_SIZE(r) - \ sizeof(struct btrfs_item) * 2) / \ size) - 1)) int btrfs_insert_file_extent(struct btrfs_trans_handle *trans, @@ -166,7 +166,7 @@ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, WARN_ON(bio->bi_vcnt <= 0); disk_bytenr = (u64)bio->bi_sector << 9; - while(bio_index < bio->bi_vcnt) { + while (bio_index < bio->bi_vcnt) { offset = page_offset(bvec->bv_page) + bvec->bv_offset; ret = btrfs_find_ordered_sum(inode, offset, disk_bytenr, &sum); if (ret == 0) @@ -192,8 +192,9 @@ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, offset + bvec->bv_len - 1, EXTENT_NODATASUM, GFP_NOFS); } else { - printk("no csum found for inode %lu " - "start %llu\n", inode->i_ino, + printk(KERN_INFO "btrfs no csum found " + "for inode %lu start %llu\n", + inode->i_ino, (unsigned long long)offset); } item = NULL; @@ -373,7 +374,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, BUG_ON(!ordered); sums->bytenr = ordered->start; - while(bio_index < bio->bi_vcnt) { + while (bio_index < bio->bi_vcnt) { if (!contig) offset = page_offset(bvec->bv_page) + bvec->bv_offset; @@ -507,7 +508,7 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); - while(1) { + while (1) { key.objectid = BTRFS_EXTENT_CSUM_OBJECTID; key.offset = end_byte - 1; key.type = BTRFS_EXTENT_CSUM_KEY; @@ -715,9 +716,8 @@ again: goto csum; diff = diff - btrfs_item_size_nr(leaf, path->slots[0]); - if (diff != csum_size) { + if (diff != csum_size) goto insert; - } ret = btrfs_extend_item(trans, root, path, diff); BUG_ON(ret); @@ -732,7 +732,7 @@ insert: u64 next_sector = sector_sum->bytenr; struct btrfs_sector_sum *next = sector_sum + 1; - while(tmp < sums->len) { + while (tmp < sums->len) { if (next_sector + root->sectorsize != next->bytenr) break; tmp += root->sectorsize; diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 5908521922f..0e3a13a4565 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -44,10 +44,10 @@ /* simple helper to fault in pages and copy. This should go away * and be replaced with calls into generic code. */ -static int noinline btrfs_copy_from_user(loff_t pos, int num_pages, +static noinline int btrfs_copy_from_user(loff_t pos, int num_pages, int write_bytes, struct page **prepared_pages, - const char __user * buf) + const char __user *buf) { long page_fault = 0; int i; @@ -78,7 +78,7 @@ static int noinline btrfs_copy_from_user(loff_t pos, int num_pages, /* * unlocks pages after btrfs_file_write is done with them */ -static void noinline btrfs_drop_pages(struct page **pages, size_t num_pages) +static noinline void btrfs_drop_pages(struct page **pages, size_t num_pages) { size_t i; for (i = 0; i < num_pages; i++) { @@ -103,7 +103,7 @@ static void noinline btrfs_drop_pages(struct page **pages, size_t num_pages) * this also makes the decision about creating an inline extent vs * doing real data extents, marking pages dirty and delalloc as required. */ -static int noinline dirty_and_release_pages(struct btrfs_trans_handle *trans, +static noinline int dirty_and_release_pages(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct file *file, struct page **pages, @@ -137,9 +137,6 @@ static int noinline dirty_and_release_pages(struct btrfs_trans_handle *trans, btrfs_set_trans_block_group(trans, inode); hint_byte = 0; - if ((end_of_last_block & 4095) == 0) { - printk("strange end of last %Lu %zu %Lu\n", start_pos, write_bytes, end_of_last_block); - } set_extent_uptodate(io_tree, start_pos, end_of_last_block, GFP_NOFS); /* check for reserved extents on each page, we don't want @@ -185,7 +182,7 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end, len = (u64)-1; testend = 0; } - while(1) { + while (1) { if (!split) split = alloc_extent_map(GFP_NOFS); if (!split2) @@ -295,7 +292,7 @@ int btrfs_check_file(struct btrfs_root *root, struct inode *inode) path = btrfs_alloc_path(); ret = btrfs_lookup_file_extent(NULL, root, path, inode->i_ino, last_offset, 0); - while(1) { + while (1) { nritems = btrfs_header_nritems(path->nodes[0]); if (path->slots[0] >= nritems) { ret = btrfs_next_leaf(root, path); @@ -314,8 +311,10 @@ int btrfs_check_file(struct btrfs_root *root, struct inode *inode) if (found_key.offset < last_offset) { WARN_ON(1); btrfs_print_leaf(root, leaf); - printk("inode %lu found offset %Lu expected %Lu\n", - inode->i_ino, found_key.offset, last_offset); + printk(KERN_ERR "inode %lu found offset %llu " + "expected %llu\n", inode->i_ino, + (unsigned long long)found_key.offset, + (unsigned long long)last_offset); err = 1; goto out; } @@ -331,7 +330,7 @@ int btrfs_check_file(struct btrfs_root *root, struct inode *inode) extent_end = found_key.offset + btrfs_file_extent_inline_len(leaf, extent); extent_end = (extent_end + root->sectorsize - 1) & - ~((u64)root->sectorsize -1 ); + ~((u64)root->sectorsize - 1); } last_offset = extent_end; path->slots[0]++; @@ -339,8 +338,9 @@ int btrfs_check_file(struct btrfs_root *root, struct inode *inode) if (0 && last_offset < inode->i_size) { WARN_ON(1); btrfs_print_leaf(root, leaf); - printk("inode %lu found offset %Lu size %Lu\n", inode->i_ino, - last_offset, inode->i_size); + printk(KERN_ERR "inode %lu found offset %llu size %llu\n", + inode->i_ino, (unsigned long long)last_offset, + (unsigned long long)inode->i_size); err = 1; } @@ -362,7 +362,7 @@ out: * inline_limit is used to tell this code which offsets in the file to keep * if they contain inline extents. */ -int noinline btrfs_drop_extents(struct btrfs_trans_handle *trans, +noinline int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode, u64 start, u64 end, u64 inline_limit, u64 *hint_byte) { @@ -398,7 +398,7 @@ int noinline btrfs_drop_extents(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); if (!path) return -ENOMEM; - while(1) { + while (1) { recow = 0; btrfs_release_path(root, path); ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino, @@ -649,16 +649,15 @@ next_slot: if (disk_bytenr != 0) { ret = btrfs_update_extent_ref(trans, root, disk_bytenr, orig_parent, - leaf->start, + leaf->start, root->root_key.objectid, trans->transid, ins.objectid); BUG_ON(ret); } btrfs_release_path(root, path); - if (disk_bytenr != 0) { + if (disk_bytenr != 0) inode_add_bytes(inode, extent_end - end); - } } if (found_extent && !keep) { @@ -944,7 +943,7 @@ done: * waits for data=ordered extents to finish before allowing the pages to be * modified. */ -static int noinline prepare_pages(struct btrfs_root *root, struct file *file, +static noinline int prepare_pages(struct btrfs_root *root, struct file *file, struct page **pages, size_t num_pages, loff_t pos, unsigned long first_index, unsigned long last_index, size_t write_bytes) @@ -979,7 +978,8 @@ again: struct btrfs_ordered_extent *ordered; lock_extent(&BTRFS_I(inode)->io_tree, start_pos, last_pos - 1, GFP_NOFS); - ordered = btrfs_lookup_first_ordered_extent(inode, last_pos -1); + ordered = btrfs_lookup_first_ordered_extent(inode, + last_pos - 1); if (ordered && ordered->file_offset + ordered->len > start_pos && ordered->file_offset < last_pos) { @@ -1085,7 +1085,7 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf, } } - while(count > 0) { + while (count > 0) { size_t offset = pos & (PAGE_CACHE_SIZE - 1); size_t write_bytes = min(count, nrptrs * (size_t)PAGE_CACHE_SIZE - @@ -1178,7 +1178,7 @@ out_nolock: return num_written ? num_written : err; } -int btrfs_release_file(struct inode * inode, struct file * filp) +int btrfs_release_file(struct inode *inode, struct file *filp) { if (filp->private_data) btrfs_ioctl_trans_end(filp); @@ -1237,9 +1237,8 @@ int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync) } ret = btrfs_log_dentry_safe(trans, root, file->f_dentry); - if (ret < 0) { + if (ret < 0) goto out; - } /* we've logged all the items and now have a consistent * version of the file in the log. It is possible that diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 2e69b9c3043..d1e5f0e84c5 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -213,10 +213,13 @@ static int __btrfs_add_free_space(struct btrfs_block_group_cache *block_group, info->offset = offset; info->bytes += bytes; } else if (right_info && right_info->offset != offset+bytes) { - printk(KERN_ERR "adding space in the middle of an existing " - "free space area. existing: offset=%Lu, bytes=%Lu. " - "new: offset=%Lu, bytes=%Lu\n", right_info->offset, - right_info->bytes, offset, bytes); + printk(KERN_ERR "btrfs adding space in the middle of an " + "existing free space area. existing: " + "offset=%llu, bytes=%llu. new: offset=%llu, " + "bytes=%llu\n", (unsigned long long)right_info->offset, + (unsigned long long)right_info->bytes, + (unsigned long long)offset, + (unsigned long long)bytes); BUG(); } @@ -225,11 +228,14 @@ static int __btrfs_add_free_space(struct btrfs_block_group_cache *block_group, if (unlikely((left_info->offset + left_info->bytes) != offset)) { - printk(KERN_ERR "free space to the left of new free " - "space isn't quite right. existing: offset=%Lu," - " bytes=%Lu. new: offset=%Lu, bytes=%Lu\n", - left_info->offset, left_info->bytes, offset, - bytes); + printk(KERN_ERR "btrfs free space to the left " + "of new free space isn't " + "quite right. existing: offset=%llu, " + "bytes=%llu. new: offset=%llu, bytes=%llu\n", + (unsigned long long)left_info->offset, + (unsigned long long)left_info->bytes, + (unsigned long long)offset, + (unsigned long long)bytes); BUG(); } @@ -265,8 +271,7 @@ out: BUG(); } - if (alloc_info) - kfree(alloc_info); + kfree(alloc_info); return ret; } @@ -283,9 +288,11 @@ __btrfs_remove_free_space(struct btrfs_block_group_cache *block_group, if (info && info->offset == offset) { if (info->bytes < bytes) { - printk(KERN_ERR "Found free space at %Lu, size %Lu," - "trying to use %Lu\n", - info->offset, info->bytes, bytes); + printk(KERN_ERR "Found free space at %llu, size %llu," + "trying to use %llu\n", + (unsigned long long)info->offset, + (unsigned long long)info->bytes, + (unsigned long long)bytes); WARN_ON(1); ret = -EINVAL; goto out; @@ -401,8 +408,6 @@ void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group, info = rb_entry(n, struct btrfs_free_space, offset_index); if (info->bytes >= bytes) count++; - //printk(KERN_INFO "offset=%Lu, bytes=%Lu\n", info->offset, - // info->bytes); } printk(KERN_INFO "%d blocks of free space at or bigger than bytes is" "\n", count); diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index 80038c5ef7c..2aa79873eb4 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -129,7 +129,6 @@ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans, last_ino = key.objectid + 1; path->slots[0]++; } - // FIXME -ENOSPC BUG_ON(1); found: btrfs_release_path(root, path); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 068bad46338..1b35ea63b6c 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -124,7 +124,7 @@ int btrfs_check_free_space(struct btrfs_root *root, u64 num_required, * the btree. The caller should have done a btrfs_drop_extents so that * no overlapping inline items exist in the btree */ -static int noinline insert_inline_extent(struct btrfs_trans_handle *trans, +static noinline int insert_inline_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode, u64 start, size_t size, size_t compressed_size, struct page **compressed_pages) @@ -148,7 +148,8 @@ static int noinline insert_inline_extent(struct btrfs_trans_handle *trans, cur_size = compressed_size; } - path = btrfs_alloc_path(); if (!path) + path = btrfs_alloc_path(); + if (!path) return -ENOMEM; btrfs_set_trans_block_group(trans, inode); @@ -165,7 +166,6 @@ static int noinline insert_inline_extent(struct btrfs_trans_handle *trans, BUG_ON(ret); if (ret) { err = ret; - printk("got bad ret %d\n", ret); goto fail; } leaf = path->nodes[0]; @@ -181,7 +181,7 @@ static int noinline insert_inline_extent(struct btrfs_trans_handle *trans, if (use_compress) { struct page *cpage; int i = 0; - while(compressed_size > 0) { + while (compressed_size > 0) { cpage = compressed_pages[i]; cur_size = min_t(unsigned long, compressed_size, PAGE_CACHE_SIZE); @@ -519,8 +519,7 @@ free_pages_out: WARN_ON(pages[i]->mapping); page_cache_release(pages[i]); } - if (pages) - kfree(pages); + kfree(pages); goto out; } @@ -549,7 +548,7 @@ static noinline int submit_compressed_extents(struct inode *inode, trans = btrfs_join_transaction(root, 1); - while(!list_empty(&async_cow->extents)) { + while (!list_empty(&async_cow->extents)) { async_extent = list_entry(async_cow->extents.next, struct async_extent, list); list_del(&async_extent->list); @@ -562,8 +561,8 @@ static noinline int submit_compressed_extents(struct inode *inode, unsigned long nr_written = 0; lock_extent(io_tree, async_extent->start, - async_extent->start + async_extent->ram_size - 1, - GFP_NOFS); + async_extent->start + + async_extent->ram_size - 1, GFP_NOFS); /* allocate blocks */ cow_file_range(inode, async_cow->locked_page, @@ -581,7 +580,7 @@ static noinline int submit_compressed_extents(struct inode *inode, if (!page_started) extent_write_locked_range(io_tree, inode, async_extent->start, - async_extent->start + + async_extent->start + async_extent->ram_size - 1, btrfs_get_extent, WB_SYNC_ALL); @@ -618,7 +617,7 @@ static noinline int submit_compressed_extents(struct inode *inode, set_bit(EXTENT_FLAG_PINNED, &em->flags); set_bit(EXTENT_FLAG_COMPRESSED, &em->flags); - while(1) { + while (1) { spin_lock(&em_tree->lock); ret = add_extent_mapping(em_tree, em); spin_unlock(&em_tree->lock); @@ -651,11 +650,11 @@ static noinline int submit_compressed_extents(struct inode *inode, NULL, 1, 1, 0, 1, 1, 0); ret = btrfs_submit_compressed_write(inode, - async_extent->start, - async_extent->ram_size, - ins.objectid, - ins.offset, async_extent->pages, - async_extent->nr_pages); + async_extent->start, + async_extent->ram_size, + ins.objectid, + ins.offset, async_extent->pages, + async_extent->nr_pages); BUG_ON(ret); trans = btrfs_join_transaction(root, 1); @@ -735,14 +734,13 @@ static noinline int cow_file_range(struct inode *inode, btrfs_drop_extent_cache(inode, start, start + num_bytes - 1, 0); - while(disk_num_bytes > 0) { + while (disk_num_bytes > 0) { cur_alloc_size = min(disk_num_bytes, root->fs_info->max_extent); ret = btrfs_reserve_extent(trans, root, cur_alloc_size, root->sectorsize, 0, alloc_hint, (u64)-1, &ins, 1); - if (ret) { - BUG(); - } + BUG_ON(ret); + em = alloc_extent_map(GFP_NOFS); em->start = start; em->orig_start = em->start; @@ -755,7 +753,7 @@ static noinline int cow_file_range(struct inode *inode, em->bdev = root->fs_info->fs_devices->latest_bdev; set_bit(EXTENT_FLAG_PINNED, &em->flags); - while(1) { + while (1) { spin_lock(&em_tree->lock); ret = add_extent_mapping(em_tree, em); spin_unlock(&em_tree->lock); @@ -779,11 +777,9 @@ static noinline int cow_file_range(struct inode *inode, BUG_ON(ret); } - if (disk_num_bytes < cur_alloc_size) { - printk("num_bytes %Lu cur_alloc %Lu\n", disk_num_bytes, - cur_alloc_size); + if (disk_num_bytes < cur_alloc_size) break; - } + /* we're not doing compressed IO, don't unlock the first * page (which the caller expects to stay locked), don't * clear any dirty bits and don't set any writeback bits @@ -842,9 +838,8 @@ static noinline void async_cow_submit(struct btrfs_work *work) waitqueue_active(&root->fs_info->async_submit_wait)) wake_up(&root->fs_info->async_submit_wait); - if (async_cow->inode) { + if (async_cow->inode) submit_compressed_extents(async_cow->inode, async_cow); - } } static noinline void async_cow_free(struct btrfs_work *work) @@ -871,7 +866,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, clear_extent_bit(&BTRFS_I(inode)->io_tree, start, end, EXTENT_LOCKED | EXTENT_DELALLOC, 1, 0, GFP_NOFS); - while(start < end) { + while (start < end) { async_cow = kmalloc(sizeof(*async_cow), GFP_NOFS); async_cow->inode = inode; async_cow->root = root; @@ -904,7 +899,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, limit)); } - while(atomic_read(&root->fs_info->async_submit_draining) && + while (atomic_read(&root->fs_info->async_submit_draining) && atomic_read(&root->fs_info->async_delalloc_pages)) { wait_event(root->fs_info->async_submit_wait, (atomic_read(&root->fs_info->async_delalloc_pages) == @@ -918,7 +913,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, return 0; } -static int noinline csum_exist_in_range(struct btrfs_root *root, +static noinline int csum_exist_in_range(struct btrfs_root *root, u64 bytenr, u64 num_bytes) { int ret; @@ -1146,13 +1141,13 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page, if (btrfs_test_flag(inode, NODATACOW)) ret = run_delalloc_nocow(inode, locked_page, start, end, - page_started, 1, nr_written); + page_started, 1, nr_written); else if (btrfs_test_flag(inode, PREALLOC)) ret = run_delalloc_nocow(inode, locked_page, start, end, - page_started, 0, nr_written); + page_started, 0, nr_written); else ret = cow_file_range_async(inode, locked_page, start, end, - page_started, nr_written); + page_started, nr_written); return ret; } @@ -1200,8 +1195,11 @@ static int btrfs_clear_bit_hook(struct inode *inode, u64 start, u64 end, spin_lock(&root->fs_info->delalloc_lock); if (end - start + 1 > root->fs_info->delalloc_bytes) { - printk("warning: delalloc account %Lu %Lu\n", - end - start + 1, root->fs_info->delalloc_bytes); + printk(KERN_INFO "btrfs warning: delalloc account " + "%llu %llu\n", + (unsigned long long)end - start + 1, + (unsigned long long) + root->fs_info->delalloc_bytes); root->fs_info->delalloc_bytes = 0; BTRFS_I(inode)->delalloc_bytes = 0; } else { @@ -1241,9 +1239,8 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset, ret = btrfs_map_block(map_tree, READ, logical, &map_length, NULL, 0); - if (map_length < length + size) { + if (map_length < length + size) return 1; - } return 0; } @@ -1255,8 +1252,9 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset, * At IO completion time the cums attached on the ordered extent record * are inserted into the btree */ -static int __btrfs_submit_bio_start(struct inode *inode, int rw, struct bio *bio, - int mirror_num, unsigned long bio_flags) +static int __btrfs_submit_bio_start(struct inode *inode, int rw, + struct bio *bio, int mirror_num, + unsigned long bio_flags) { struct btrfs_root *root = BTRFS_I(inode)->root; int ret = 0; @@ -1341,9 +1339,8 @@ static noinline int add_pending_csums(struct btrfs_trans_handle *trans, int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end) { - if ((end & (PAGE_CACHE_SIZE - 1)) == 0) { + if ((end & (PAGE_CACHE_SIZE - 1)) == 0) WARN_ON(1); - } return set_extent_delalloc(&BTRFS_I(inode)->io_tree, start, end, GFP_NOFS); } @@ -1755,14 +1752,14 @@ static int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end, } local_irq_save(flags); kaddr = kmap_atomic(page, KM_IRQ0); - if (ret) { + if (ret) goto zeroit; - } + csum = btrfs_csum_data(root, kaddr + offset, csum, end - start + 1); btrfs_csum_final(csum, (char *)&csum); - if (csum != private) { + if (csum != private) goto zeroit; - } + kunmap_atomic(kaddr, KM_IRQ0); local_irq_restore(flags); good: @@ -1773,9 +1770,10 @@ good: return 0; zeroit: - printk("btrfs csum failed ino %lu off %llu csum %u private %Lu\n", - page->mapping->host->i_ino, (unsigned long long)start, csum, - private); + printk(KERN_INFO "btrfs csum failed ino %lu off %llu csum %u " + "private %llu\n", page->mapping->host->i_ino, + (unsigned long long)start, csum, + (unsigned long long)private); memset(kaddr + offset, 1, end - start + 1); flush_dcache_page(page); kunmap_atomic(kaddr, KM_IRQ0); @@ -2097,9 +2095,8 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, /* * copy everything in the in-memory inode into the btree. */ -int noinline btrfs_update_inode(struct btrfs_trans_handle *trans, - struct btrfs_root *root, - struct inode *inode) +noinline int btrfs_update_inode(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct inode *inode) { struct btrfs_inode_item *inode_item; struct btrfs_path *path; @@ -2174,7 +2171,7 @@ int btrfs_unlink_inode(struct btrfs_trans_handle *trans, inode->i_ino, dir->i_ino, &index); if (ret) { - printk("failed to delete reference to %.*s, " + printk(KERN_INFO "btrfs failed to delete reference to %.*s, " "inode %lu parent %lu\n", name_len, name, inode->i_ino, dir->i_ino); goto err; @@ -2280,9 +2277,8 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry) /* now the directory is empty */ err = btrfs_unlink_inode(trans, root, dir, dentry->d_inode, dentry->d_name.name, dentry->d_name.len); - if (!err) { + if (!err) btrfs_i_size_write(inode, 0); - } fail_trans: nr = trans->blocks_used; @@ -2516,9 +2512,9 @@ noinline int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, search_again: ret = btrfs_search_slot(trans, root, &key, path, -1, 1); - if (ret < 0) { + if (ret < 0) goto error; - } + if (ret > 0) { /* there are no items in the tree for us to truncate, we're * done @@ -2530,7 +2526,7 @@ search_again: path->slots[0]--; } - while(1) { + while (1) { fi = NULL; leaf = path->nodes[0]; btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]); @@ -2562,19 +2558,18 @@ search_again: item_end--; } if (item_end < new_size) { - if (found_type == BTRFS_DIR_ITEM_KEY) { + if (found_type == BTRFS_DIR_ITEM_KEY) found_type = BTRFS_INODE_ITEM_KEY; - } else if (found_type == BTRFS_EXTENT_ITEM_KEY) { + else if (found_type == BTRFS_EXTENT_ITEM_KEY) found_type = BTRFS_EXTENT_DATA_KEY; - } else if (found_type == BTRFS_EXTENT_DATA_KEY) { + else if (found_type == BTRFS_EXTENT_DATA_KEY) found_type = BTRFS_XATTR_ITEM_KEY; - } else if (found_type == BTRFS_XATTR_ITEM_KEY) { + else if (found_type == BTRFS_XATTR_ITEM_KEY) found_type = BTRFS_INODE_REF_KEY; - } else if (found_type) { + else if (found_type) found_type--; - } else { + else break; - } btrfs_set_key_type(&key, found_type); goto next; } @@ -2656,7 +2651,7 @@ delete: pending_del_nr++; pending_del_slot = path->slots[0]; } else { - printk("bad pending slot %d pending_del_nr %d pending_del_slot %d\n", path->slots[0], pending_del_nr, pending_del_slot); + BUG(); } } else { break; @@ -2938,9 +2933,10 @@ static int btrfs_inode_by_name(struct inode *dir, struct dentry *dentry, namelen, 0); if (IS_ERR(di)) ret = PTR_ERR(di); - if (!di || IS_ERR(di)) { + + if (!di || IS_ERR(di)) goto out_err; - } + btrfs_dir_item_key_to_cpu(path->nodes[0], di, location); out: btrfs_free_path(path); @@ -3020,8 +3016,8 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p) static int btrfs_find_actor(struct inode *inode, void *opaque) { struct btrfs_iget_args *args = opaque; - return (args->ino == inode->i_ino && - args->root == BTRFS_I(inode)->root); + return args->ino == inode->i_ino && + args->root == BTRFS_I(inode)->root; } struct inode *btrfs_ilookup(struct super_block *s, u64 objectid, @@ -3085,7 +3081,7 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location, struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry) { - struct inode * inode; + struct inode *inode; struct btrfs_inode *bi = BTRFS_I(dir); struct btrfs_root *root = bi->root; struct btrfs_root *sub_root = root; @@ -3385,9 +3381,8 @@ int btrfs_set_inode_index(struct inode *dir, u64 *index) if (BTRFS_I(dir)->index_cnt == (u64)-1) { ret = btrfs_set_inode_index_count(dir); - if (ret) { + if (ret) return ret; - } } *index = BTRFS_I(dir)->index_cnt; @@ -3879,12 +3874,13 @@ static noinline int uncompress_inline(struct btrfs_path *path, /* * a bit scary, this does extent mapping from logical file offset to the disk. - * the ugly parts come from merging extents from the disk with the - * in-ram representation. This gets more complex because of the data=ordered code, + * the ugly parts come from merging extents from the disk with the in-ram + * representation. This gets more complex because of the data=ordered code, * where the in-ram extents might be locked pending data=ordered completion. * * This also copies inline extents directly into the page. */ + struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page, size_t pg_offset, u64 start, u64 len, int create) @@ -4081,7 +4077,7 @@ again: extent_map_end(em) - 1, GFP_NOFS); goto insert; } else { - printk("unkknown found_type %d\n", found_type); + printk(KERN_ERR "btrfs unknown found_type %d\n", found_type); WARN_ON(1); } not_found: @@ -4093,7 +4089,11 @@ not_found_em: insert: btrfs_release_path(root, path); if (em->start > start || extent_map_end(em) <= start) { - printk("bad extent! em: [%Lu %Lu] passed [%Lu %Lu]\n", em->start, em->len, start, len); + printk(KERN_ERR "Btrfs: bad extent! em: [%llu %llu] passed " + "[%llu %llu]\n", (unsigned long long)em->start, + (unsigned long long)em->len, + (unsigned long long)start, + (unsigned long long)len); err = -EIO; goto out; } @@ -4130,8 +4130,6 @@ insert: } } else { err = -EIO; - printk("failing to insert %Lu %Lu\n", - start, len); free_extent_map(em); em = NULL; } @@ -4147,9 +4145,8 @@ out: btrfs_free_path(path); if (trans) { ret = btrfs_end_transaction(trans, root); - if (!err) { + if (!err) err = ret; - } } if (err) { free_extent_map(em); @@ -4482,13 +4479,15 @@ void btrfs_destroy_inode(struct inode *inode) } spin_unlock(&BTRFS_I(inode)->root->list_lock); - while(1) { + while (1) { ordered = btrfs_lookup_first_ordered_extent(inode, (u64)-1); if (!ordered) break; else { - printk("found ordered extent %Lu %Lu\n", - ordered->file_offset, ordered->len); + printk(KERN_ERR "btrfs found ordered " + "extent %llu %llu on inode cleanup\n", + (unsigned long long)ordered->file_offset, + (unsigned long long)ordered->len); btrfs_remove_ordered_extent(inode, ordered); btrfs_put_ordered_extent(ordered); btrfs_put_ordered_extent(ordered); @@ -4572,8 +4571,8 @@ static int btrfs_getattr(struct vfsmount *mnt, return 0; } -static int btrfs_rename(struct inode * old_dir, struct dentry *old_dentry, - struct inode * new_dir,struct dentry *new_dentry) +static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry) { struct btrfs_trans_handle *trans; struct btrfs_root *root = BTRFS_I(old_dir)->root; @@ -4663,7 +4662,7 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root) return -EROFS; spin_lock(&root->fs_info->delalloc_lock); - while(!list_empty(head)) { + while (!list_empty(head)) { binode = list_entry(head->next, struct btrfs_inode, delalloc_inodes); inode = igrab(&binode->vfs_inode); @@ -4684,7 +4683,7 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root) * ordered extents get created before we return */ atomic_inc(&root->fs_info->async_submit_draining); - while(atomic_read(&root->fs_info->nr_async_submits) || + while (atomic_read(&root->fs_info->nr_async_submits) || atomic_read(&root->fs_info->async_delalloc_pages)) { wait_event(root->fs_info->async_submit_wait, (atomic_read(&root->fs_info->nr_async_submits) == 0 && diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index ba484aac1b9..c2aa33e3feb 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -311,7 +311,7 @@ static noinline int btrfs_mksubvol(struct path *parent, char *name, * to see if is references the subvolume where we are * placing this new snapshot. */ - while(1) { + while (1) { if (!test || dir == snap_src->fs_info->sb->s_root || test == snap_src->fs_info->sb->s_root || @@ -319,7 +319,8 @@ static noinline int btrfs_mksubvol(struct path *parent, char *name, break; } if (S_ISLNK(test->d_inode->i_mode)) { - printk("Symlink in snapshot path, failed\n"); + printk(KERN_INFO "Btrfs symlink in snapshot " + "path, failed\n"); error = -EMLINK; btrfs_free_path(path); goto out_drop_write; @@ -329,7 +330,8 @@ static noinline int btrfs_mksubvol(struct path *parent, char *name, ret = btrfs_find_root_ref(snap_src->fs_info->tree_root, path, test_oid, parent_oid); if (ret == 0) { - printk("Snapshot creation failed, looping\n"); + printk(KERN_INFO "Btrfs snapshot creation " + "failed, looping\n"); error = -EMLINK; btrfs_free_path(path); goto out_drop_write; @@ -617,7 +619,8 @@ static noinline int btrfs_ioctl_snap_create(struct file *file, src_inode = src_file->f_path.dentry->d_inode; if (src_inode->i_sb != file->f_path.dentry->d_inode->i_sb) { - printk("btrfs: Snapshot src from another FS\n"); + printk(KERN_INFO "btrfs: Snapshot src from " + "another FS\n"); ret = -EINVAL; fput(src_file); goto out; @@ -810,9 +813,6 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, ((off + len) & (bs-1))) goto out_unlock; - printk("final src extent is %llu~%llu\n", off, len); - printk("final dst extent is %llu~%llu\n", destoff, len); - /* do any pending delalloc/csum calc on src, one way or another, and lock file content */ while (1) { @@ -883,10 +883,13 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, comp = btrfs_file_extent_compression(leaf, extent); type = btrfs_file_extent_type(leaf, extent); if (type == BTRFS_FILE_EXTENT_REG) { - disko = btrfs_file_extent_disk_bytenr(leaf, extent); - diskl = btrfs_file_extent_disk_num_bytes(leaf, extent); + disko = btrfs_file_extent_disk_bytenr(leaf, + extent); + diskl = btrfs_file_extent_disk_num_bytes(leaf, + extent); datao = btrfs_file_extent_offset(leaf, extent); - datal = btrfs_file_extent_num_bytes(leaf, extent); + datal = btrfs_file_extent_num_bytes(leaf, + extent); } else if (type == BTRFS_FILE_EXTENT_INLINE) { /* take upper bound, may be compressed */ datal = btrfs_file_extent_ram_bytes(leaf, @@ -916,8 +919,6 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, extent = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item); - printk(" orig disk %llu~%llu data %llu~%llu\n", - disko, diskl, datao, datal); if (off > key.offset) { datao += off - key.offset; @@ -929,8 +930,6 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, /* disko == 0 means it's a hole */ if (!disko) datao = 0; - printk(" final disk %llu~%llu data %llu~%llu\n", - disko, diskl, datao, datal); btrfs_set_file_extent_offset(leaf, extent, datao); @@ -952,12 +951,11 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, skip = off - key.offset; new_key.offset += skip; } + if (key.offset + datal > off+len) trim = key.offset + datal - (off+len); - printk("len %lld skip %lld trim %lld\n", - datal, skip, trim); + if (comp && (skip || trim)) { - printk("btrfs clone_range can't split compressed inline extents yet\n"); ret = -EINVAL; goto out; } @@ -969,7 +967,8 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, goto out; if (skip) { - u32 start = btrfs_file_extent_calc_inline_size(0); + u32 start = + btrfs_file_extent_calc_inline_size(0); memmove(buf+start, buf+start+skip, datal); } @@ -985,7 +984,7 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, btrfs_mark_buffer_dirty(leaf); } - next: +next: btrfs_release_path(root, path); key.offset++; } diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c index e30aa6e2958..39bae7761db 100644 --- a/fs/btrfs/locking.c +++ b/fs/btrfs/locking.c @@ -31,9 +31,10 @@ * difference in almost every workload, but spinning for the right amount of * time needs some help. * - * In general, we want to spin as long as the lock holder is doing btree searches, - * and we should give up if they are in more expensive code. + * In general, we want to spin as long as the lock holder is doing btree + * searches, and we should give up if they are in more expensive code. */ + int btrfs_tree_lock(struct extent_buffer *eb) { int i; diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index d9e232227da..a2094017027 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -39,11 +39,11 @@ static u64 entry_end(struct btrfs_ordered_extent *entry) static struct rb_node *tree_insert(struct rb_root *root, u64 file_offset, struct rb_node *node) { - struct rb_node ** p = &root->rb_node; - struct rb_node * parent = NULL; + struct rb_node **p = &root->rb_node; + struct rb_node *parent = NULL; struct btrfs_ordered_extent *entry; - while(*p) { + while (*p) { parent = *p; entry = rb_entry(parent, struct btrfs_ordered_extent, rb_node); @@ -67,13 +67,13 @@ static struct rb_node *tree_insert(struct rb_root *root, u64 file_offset, static struct rb_node *__tree_search(struct rb_root *root, u64 file_offset, struct rb_node **prev_ret) { - struct rb_node * n = root->rb_node; + struct rb_node *n = root->rb_node; struct rb_node *prev = NULL; struct rb_node *test; struct btrfs_ordered_extent *entry; struct btrfs_ordered_extent *prev_entry = NULL; - while(n) { + while (n) { entry = rb_entry(n, struct btrfs_ordered_extent, rb_node); prev = n; prev_entry = entry; @@ -88,7 +88,7 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 file_offset, if (!prev_ret) return NULL; - while(prev && file_offset >= entry_end(prev_entry)) { + while (prev && file_offset >= entry_end(prev_entry)) { test = rb_next(prev); if (!test) break; @@ -102,7 +102,7 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 file_offset, if (prev) prev_entry = rb_entry(prev, struct btrfs_ordered_extent, rb_node); - while(prev && file_offset < entry_end(prev_entry)) { + while (prev && file_offset < entry_end(prev_entry)) { test = rb_prev(prev); if (!test) break; @@ -193,10 +193,8 @@ int btrfs_add_ordered_extent(struct inode *inode, u64 file_offset, node = tree_insert(&tree->tree, file_offset, &entry->rb_node); - if (node) { - printk("warning dup entry from add_ordered_extent\n"); - BUG(); - } + BUG_ON(node); + set_extent_ordered(&BTRFS_I(inode)->io_tree, file_offset, entry_end(entry) - 1, GFP_NOFS); @@ -282,7 +280,7 @@ int btrfs_put_ordered_extent(struct btrfs_ordered_extent *entry) struct btrfs_ordered_sum *sum; if (atomic_dec_and_test(&entry->refs)) { - while(!list_empty(&entry->list)) { + while (!list_empty(&entry->list)) { cur = entry->list.next; sum = list_entry(cur, struct btrfs_ordered_sum, list); list_del(&sum->list); @@ -432,11 +430,10 @@ again: orig_end >> PAGE_CACHE_SHIFT); end = orig_end; - while(1) { + while (1) { ordered = btrfs_lookup_first_ordered_extent(inode, end); - if (!ordered) { + if (!ordered) break; - } if (ordered->file_offset > orig_end) { btrfs_put_ordered_extent(ordered); break; @@ -492,7 +489,7 @@ out: * if none is found */ struct btrfs_ordered_extent * -btrfs_lookup_first_ordered_extent(struct inode * inode, u64 file_offset) +btrfs_lookup_first_ordered_extent(struct inode *inode, u64 file_offset) { struct btrfs_ordered_inode_tree *tree; struct rb_node *node; @@ -553,7 +550,7 @@ int btrfs_ordered_update_i_size(struct inode *inode, * yet */ node = &ordered->rb_node; - while(1) { + while (1) { node = rb_prev(node); if (!node) break; @@ -581,9 +578,8 @@ int btrfs_ordered_update_i_size(struct inode *inode, * between our ordered extent and the next one. */ test = rb_entry(node, struct btrfs_ordered_extent, rb_node); - if (test->file_offset > entry_end(ordered)) { + if (test->file_offset > entry_end(ordered)) i_size_test = test->file_offset; - } } else { i_size_test = i_size_read(inode); } diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c index 64725c13aa1..5f8f218c100 100644 --- a/fs/btrfs/print-tree.c +++ b/fs/btrfs/print-tree.c @@ -24,13 +24,14 @@ static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) { int num_stripes = btrfs_chunk_num_stripes(eb, chunk); int i; - printk("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n", + printk(KERN_INFO "\t\tchunk length %llu owner %llu type %llu " + "num_stripes %d\n", (unsigned long long)btrfs_chunk_length(eb, chunk), (unsigned long long)btrfs_chunk_owner(eb, chunk), (unsigned long long)btrfs_chunk_type(eb, chunk), num_stripes); for (i = 0 ; i < num_stripes ; i++) { - printk("\t\t\tstripe %d devid %llu offset %llu\n", i, + printk(KERN_INFO "\t\t\tstripe %d devid %llu offset %llu\n", i, (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i), (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i)); } @@ -38,8 +39,8 @@ static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) static void print_dev_item(struct extent_buffer *eb, struct btrfs_dev_item *dev_item) { - printk("\t\tdev item devid %llu " - "total_bytes %llu bytes used %Lu\n", + printk(KERN_INFO "\t\tdev item devid %llu " + "total_bytes %llu bytes used %llu\n", (unsigned long long)btrfs_device_id(eb, dev_item), (unsigned long long)btrfs_device_total_bytes(eb, dev_item), (unsigned long long)btrfs_device_bytes_used(eb, dev_item)); @@ -61,14 +62,15 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) struct btrfs_dev_extent *dev_extent; u32 type; - printk("leaf %llu total ptrs %d free space %d\n", + printk(KERN_INFO "leaf %llu total ptrs %d free space %d\n", (unsigned long long)btrfs_header_bytenr(l), nr, btrfs_leaf_free_space(root, l)); for (i = 0 ; i < nr ; i++) { item = btrfs_item_nr(l, i); btrfs_item_key_to_cpu(l, &key, i); type = btrfs_key_type(&key); - printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n", + printk(KERN_INFO "\titem %d key (%llu %x %llu) itemoff %d " + "itemsize %d\n", i, (unsigned long long)key.objectid, type, (unsigned long long)key.offset, @@ -76,33 +78,36 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) switch (type) { case BTRFS_INODE_ITEM_KEY: ii = btrfs_item_ptr(l, i, struct btrfs_inode_item); - printk("\t\tinode generation %llu size %llu mode %o\n", - (unsigned long long)btrfs_inode_generation(l, ii), + printk(KERN_INFO "\t\tinode generation %llu size %llu " + "mode %o\n", + (unsigned long long) + btrfs_inode_generation(l, ii), (unsigned long long)btrfs_inode_size(l, ii), btrfs_inode_mode(l, ii)); break; case BTRFS_DIR_ITEM_KEY: di = btrfs_item_ptr(l, i, struct btrfs_dir_item); btrfs_dir_item_key_to_cpu(l, di, &found_key); - printk("\t\tdir oid %llu type %u\n", + printk(KERN_INFO "\t\tdir oid %llu type %u\n", (unsigned long long)found_key.objectid, btrfs_dir_type(l, di)); break; case BTRFS_ROOT_ITEM_KEY: ri = btrfs_item_ptr(l, i, struct btrfs_root_item); - printk("\t\troot data bytenr %llu refs %u\n", - (unsigned long long)btrfs_disk_root_bytenr(l, ri), + printk(KERN_INFO "\t\troot data bytenr %llu refs %u\n", + (unsigned long long) + btrfs_disk_root_bytenr(l, ri), btrfs_disk_root_refs(l, ri)); break; case BTRFS_EXTENT_ITEM_KEY: ei = btrfs_item_ptr(l, i, struct btrfs_extent_item); - printk("\t\textent data refs %u\n", + printk(KERN_INFO "\t\textent data refs %u\n", btrfs_extent_refs(l, ei)); break; case BTRFS_EXTENT_REF_KEY: ref = btrfs_item_ptr(l, i, struct btrfs_extent_ref); - printk("\t\textent back ref root %llu gen %llu " - "owner %llu num_refs %lu\n", + printk(KERN_INFO "\t\textent back ref root %llu " + "gen %llu owner %llu num_refs %lu\n", (unsigned long long)btrfs_ref_root(l, ref), (unsigned long long)btrfs_ref_generation(l, ref), (unsigned long long)btrfs_ref_objectid(l, ref), @@ -114,26 +119,36 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) struct btrfs_file_extent_item); if (btrfs_file_extent_type(l, fi) == BTRFS_FILE_EXTENT_INLINE) { - printk("\t\tinline extent data size %u\n", - btrfs_file_extent_inline_len(l, fi)); + printk(KERN_INFO "\t\tinline extent data " + "size %u\n", + btrfs_file_extent_inline_len(l, fi)); break; } - printk("\t\textent data disk bytenr %llu nr %llu\n", - (unsigned long long)btrfs_file_extent_disk_bytenr(l, fi), - (unsigned long long)btrfs_file_extent_disk_num_bytes(l, fi)); - printk("\t\textent data offset %llu nr %llu ram %llu\n", - (unsigned long long)btrfs_file_extent_offset(l, fi), - (unsigned long long)btrfs_file_extent_num_bytes(l, fi), - (unsigned long long)btrfs_file_extent_ram_bytes(l, fi)); + printk(KERN_INFO "\t\textent data disk bytenr %llu " + "nr %llu\n", + (unsigned long long) + btrfs_file_extent_disk_bytenr(l, fi), + (unsigned long long) + btrfs_file_extent_disk_num_bytes(l, fi)); + printk(KERN_INFO "\t\textent data offset %llu " + "nr %llu ram %llu\n", + (unsigned long long) + btrfs_file_extent_offset(l, fi), + (unsigned long long) + btrfs_file_extent_num_bytes(l, fi), + (unsigned long long) + btrfs_file_extent_ram_bytes(l, fi)); break; case BTRFS_BLOCK_GROUP_ITEM_KEY: bi = btrfs_item_ptr(l, i, struct btrfs_block_group_item); - printk("\t\tblock group used %llu\n", - (unsigned long long)btrfs_disk_block_group_used(l, bi)); + printk(KERN_INFO "\t\tblock group used %llu\n", + (unsigned long long) + btrfs_disk_block_group_used(l, bi)); break; case BTRFS_CHUNK_ITEM_KEY: - print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk)); + print_chunk(l, btrfs_item_ptr(l, i, + struct btrfs_chunk)); break; case BTRFS_DEV_ITEM_KEY: print_dev_item(l, btrfs_item_ptr(l, i, @@ -142,7 +157,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) case BTRFS_DEV_EXTENT_KEY: dev_extent = btrfs_item_ptr(l, i, struct btrfs_dev_extent); - printk("\t\tdev extent chunk_tree %llu\n" + printk(KERN_INFO "\t\tdev extent chunk_tree %llu\n" "\t\tchunk objectid %llu chunk offset %llu " "length %llu\n", (unsigned long long) @@ -171,13 +186,13 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c) btrfs_print_leaf(root, c); return; } - printk("node %llu level %d total ptrs %d free spc %u\n", + printk(KERN_INFO "node %llu level %d total ptrs %d free spc %u\n", (unsigned long long)btrfs_header_bytenr(c), btrfs_header_level(c), nr, (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr); for (i = 0; i < nr; i++) { btrfs_node_key_to_cpu(c, &key, i); - printk("\tkey %d (%llu %u %llu) block %llu\n", + printk(KERN_INFO "\tkey %d (%llu %u %llu) block %llu\n", i, (unsigned long long)key.objectid, key.type, diff --git a/fs/btrfs/ref-cache.c b/fs/btrfs/ref-cache.c index a50ebb67055..6f0acc4c9ea 100644 --- a/fs/btrfs/ref-cache.c +++ b/fs/btrfs/ref-cache.c @@ -74,11 +74,11 @@ void btrfs_free_leaf_ref(struct btrfs_root *root, struct btrfs_leaf_ref *ref) static struct rb_node *tree_insert(struct rb_root *root, u64 bytenr, struct rb_node *node) { - struct rb_node ** p = &root->rb_node; - struct rb_node * parent = NULL; + struct rb_node **p = &root->rb_node; + struct rb_node *parent = NULL; struct btrfs_leaf_ref *entry; - while(*p) { + while (*p) { parent = *p; entry = rb_entry(parent, struct btrfs_leaf_ref, rb_node); @@ -98,10 +98,10 @@ static struct rb_node *tree_insert(struct rb_root *root, u64 bytenr, static struct rb_node *tree_search(struct rb_root *root, u64 bytenr) { - struct rb_node * n = root->rb_node; + struct rb_node *n = root->rb_node; struct btrfs_leaf_ref *entry; - while(n) { + while (n) { entry = rb_entry(n, struct btrfs_leaf_ref, rb_node); WARN_ON(!entry->in_tree); @@ -127,7 +127,7 @@ int btrfs_remove_leaf_refs(struct btrfs_root *root, u64 max_root_gen, return 0; spin_lock(&tree->lock); - while(!list_empty(&tree->list)) { + while (!list_empty(&tree->list)) { ref = list_entry(tree->list.next, struct btrfs_leaf_ref, list); BUG_ON(ref->tree != tree); if (ref->root_gen > max_root_gen) diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index f99335a999d..b48650de447 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -132,8 +132,9 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root if (ret != 0) { btrfs_print_leaf(root, path->nodes[0]); - printk("unable to update root key %Lu %u %Lu\n", - key->objectid, key->type, key->offset); + printk(KERN_CRIT "unable to update root key %llu %u %llu\n", + (unsigned long long)key->objectid, key->type, + (unsigned long long)key->offset); BUG_ON(1); } @@ -159,9 +160,9 @@ int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root /* * at mount time we want to find all the old transaction snapshots that were in - * the process of being deleted if we crashed. This is any root item with an offset - * lower than the latest root. They need to be queued for deletion to finish - * what was happening when we crashed. + * the process of being deleted if we crashed. This is any root item with an + * offset lower than the latest root. They need to be queued for deletion to + * finish what was happening when we crashed. */ int btrfs_find_dead_roots(struct btrfs_root *root, u64 objectid, struct btrfs_root *latest) @@ -188,7 +189,7 @@ again: ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) goto err; - while(1) { + while (1) { leaf = path->nodes[0]; nritems = btrfs_header_nritems(leaf); slot = path->slots[0]; @@ -258,11 +259,7 @@ int btrfs_del_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, ret = btrfs_search_slot(trans, root, key, path, -1, 1); if (ret < 0) goto out; - if (ret) { -btrfs_print_leaf(root, path->nodes[0]); -printk("failed to del %Lu %u %Lu\n", key->objectid, key->type, key->offset); - } BUG_ON(ret != 0); leaf = path->nodes[0]; ri = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_root_item); diff --git a/fs/btrfs/struct-funcs.c b/fs/btrfs/struct-funcs.c index 8d7f568009c..c0f7ecaf1e7 100644 --- a/fs/btrfs/struct-funcs.c +++ b/fs/btrfs/struct-funcs.c @@ -66,7 +66,7 @@ u##bits btrfs_##name(struct extent_buffer *eb, \ unsigned long map_len; \ u##bits res; \ err = map_extent_buffer(eb, offset, \ - sizeof(((type *)0)->member), \ + sizeof(((type *)0)->member), \ &map_token, &kaddr, \ &map_start, &map_len, KM_USER1); \ if (err) { \ @@ -103,7 +103,7 @@ void btrfs_set_##name(struct extent_buffer *eb, \ unsigned long map_start; \ unsigned long map_len; \ err = map_extent_buffer(eb, offset, \ - sizeof(((type *)0)->member), \ + sizeof(((type *)0)->member), \ &map_token, &kaddr, \ &map_start, &map_len, KM_USER1); \ if (err) { \ diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index ccdcb7bb7ad..b4c101d9322 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -55,18 +55,12 @@ static struct super_operations btrfs_super_ops; -static void btrfs_put_super (struct super_block * sb) +static void btrfs_put_super(struct super_block *sb) { struct btrfs_root *root = btrfs_sb(sb); int ret; ret = close_ctree(root); - if (ret) { - printk("close ctree returns %d\n", ret); - } -#if 0 - btrfs_sysfs_del_super(root->fs_info); -#endif sb->s_fs_info = NULL; } @@ -299,12 +293,12 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags, return error; } -static int btrfs_fill_super(struct super_block * sb, +static int btrfs_fill_super(struct super_block *sb, struct btrfs_fs_devices *fs_devices, - void * data, int silent) + void *data, int silent) { - struct inode * inode; - struct dentry * root_dentry; + struct inode *inode; + struct dentry *root_dentry; struct btrfs_super_block *disk_super; struct btrfs_root *tree_root; struct btrfs_inode *bi; @@ -479,8 +473,10 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags, root = dget(s->s_root); else { mutex_lock(&s->s_root->d_inode->i_mutex); - root = lookup_one_len(subvol_name, s->s_root, strlen(subvol_name)); + root = lookup_one_len(subvol_name, s->s_root, + strlen(subvol_name)); mutex_unlock(&s->s_root->d_inode->i_mutex); + if (IS_ERR(root)) { up_write(&s->s_umount); deactivate_super(s); @@ -557,8 +553,9 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_bavail = buf->f_bfree; buf->f_bsize = dentry->d_sb->s_blocksize; buf->f_type = BTRFS_SUPER_MAGIC; + /* We treat it as constant endianness (it doesn't matter _which_) - because we want the fsid to come out the same whether mounted + because we want the fsid to come out the same whether mounted on a big-endian or little-endian host */ buf->f_fsid.val[0] = be32_to_cpu(fsid[0]) ^ be32_to_cpu(fsid[2]); buf->f_fsid.val[1] = be32_to_cpu(fsid[1]) ^ be32_to_cpu(fsid[3]); @@ -658,7 +655,7 @@ static int btrfs_interface_init(void) static void btrfs_interface_exit(void) { if (misc_deregister(&btrfs_misc) < 0) - printk("misc_deregister failed for control device"); + printk(KERN_INFO "misc_deregister failed for control device"); } static int __init init_btrfs_fs(void) diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 04087c02084..a240b6fa81d 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -67,7 +67,8 @@ struct btrfs_root_attr { }; #define ROOT_ATTR(name, mode, show, store) \ -static struct btrfs_root_attr btrfs_root_attr_##name = __ATTR(name, mode, show, store) +static struct btrfs_root_attr btrfs_root_attr_##name = __ATTR(name, mode, \ + show, store) ROOT_ATTR(blocks_used, 0444, root_blocks_used_show, NULL); ROOT_ATTR(block_limit, 0644, root_block_limit_show, NULL); @@ -86,7 +87,8 @@ struct btrfs_super_attr { }; #define SUPER_ATTR(name, mode, show, store) \ -static struct btrfs_super_attr btrfs_super_attr_##name = __ATTR(name, mode, show, store) +static struct btrfs_super_attr btrfs_super_attr_##name = __ATTR(name, mode, \ + show, store) SUPER_ATTR(blocks_used, 0444, super_blocks_used_show, NULL); SUPER_ATTR(total_blocks, 0444, super_total_blocks_show, NULL); diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 4e7b56e9d3a..56ab1f5ea11 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -28,9 +28,6 @@ #include "ref-cache.h" #include "tree-log.h" -extern struct kmem_cache *btrfs_trans_handle_cachep; -extern struct kmem_cache *btrfs_transaction_cachep; - #define BTRFS_ROOT_TRANS_TAG 0 static noinline void put_transaction(struct btrfs_transaction *transaction) @@ -85,10 +82,10 @@ static noinline int join_transaction(struct btrfs_root *root) } /* - * this does all the record keeping required to make sure that a - * reference counted root is properly recorded in a given transaction. - * This is required to make sure the old root from before we joined the transaction - * is deleted when the transaction commits + * this does all the record keeping required to make sure that a reference + * counted root is properly recorded in a given transaction. This is required + * to make sure the old root from before we joined the transaction is deleted + * when the transaction commits */ noinline int btrfs_record_root_in_trans(struct btrfs_root *root) { @@ -144,7 +141,7 @@ static void wait_current_trans(struct btrfs_root *root) if (cur_trans && cur_trans->blocked) { DEFINE_WAIT(wait); cur_trans->use_count++; - while(1) { + while (1) { prepare_to_wait(&root->fs_info->transaction_wait, &wait, TASK_UNINTERRUPTIBLE); if (cur_trans->blocked) { @@ -213,7 +210,7 @@ static noinline int wait_for_commit(struct btrfs_root *root, { DEFINE_WAIT(wait); mutex_lock(&root->fs_info->trans_mutex); - while(!commit->commit_done) { + while (!commit->commit_done) { prepare_to_wait(&commit->commit_wait, &wait, TASK_UNINTERRUPTIBLE); if (commit->commit_done) @@ -228,8 +225,8 @@ static noinline int wait_for_commit(struct btrfs_root *root, } /* - * rate limit against the drop_snapshot code. This helps to slow down new operations - * if the drop_snapshot code isn't able to keep up. + * rate limit against the drop_snapshot code. This helps to slow down new + * operations if the drop_snapshot code isn't able to keep up. */ static void throttle_on_drops(struct btrfs_root *root) { @@ -332,12 +329,12 @@ int btrfs_write_and_wait_marked_extents(struct btrfs_root *root, u64 end; unsigned long index; - while(1) { + while (1) { ret = find_first_extent_bit(dirty_pages, start, &start, &end, EXTENT_DIRTY); if (ret) break; - while(start <= end) { + while (start <= end) { cond_resched(); index = start >> PAGE_CACHE_SHIFT; @@ -368,14 +365,14 @@ int btrfs_write_and_wait_marked_extents(struct btrfs_root *root, page_cache_release(page); } } - while(1) { + while (1) { ret = find_first_extent_bit(dirty_pages, 0, &start, &end, EXTENT_DIRTY); if (ret) break; clear_extent_dirty(dirty_pages, start, end, GFP_NOFS); - while(start <= end) { + while (start <= end) { index = start >> PAGE_CACHE_SHIFT; start = (u64)(index + 1) << PAGE_CACHE_SHIFT; page = find_get_page(btree_inode->i_mapping, index); @@ -431,7 +428,7 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans, btrfs_write_dirty_block_groups(trans, root); btrfs_extent_post_op(trans, root); - while(1) { + while (1) { old_root_bytenr = btrfs_root_bytenr(&root->root_item); if (old_root_bytenr == root->node->start) break; @@ -472,7 +469,7 @@ int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans, btrfs_extent_post_op(trans, fs_info->tree_root); - while(!list_empty(&fs_info->dirty_cowonly_roots)) { + while (!list_empty(&fs_info->dirty_cowonly_roots)) { next = fs_info->dirty_cowonly_roots.next; list_del_init(next); root = list_entry(next, struct btrfs_root, dirty_list); @@ -521,7 +518,7 @@ static noinline int add_dirty_roots(struct btrfs_trans_handle *trans, int err = 0; u32 refs; - while(1) { + while (1) { ret = radix_tree_gang_lookup_tag(radix, (void **)gang, 0, ARRAY_SIZE(gang), BTRFS_ROOT_TRANS_TAG); @@ -653,7 +650,7 @@ static noinline int drop_dirty_roots(struct btrfs_root *tree_root, int ret = 0; int err; - while(!list_empty(list)) { + while (!list_empty(list)) { struct btrfs_root *root; dirty = list_entry(list->prev, struct btrfs_dirty_root, list); @@ -663,13 +660,12 @@ static noinline int drop_dirty_roots(struct btrfs_root *tree_root, root = dirty->latest_root; atomic_inc(&root->fs_info->throttles); - while(1) { + while (1) { trans = btrfs_start_transaction(tree_root, 1); mutex_lock(&root->fs_info->drop_mutex); ret = btrfs_drop_snapshot(trans, dirty->root); - if (ret != -EAGAIN) { + if (ret != -EAGAIN) break; - } mutex_unlock(&root->fs_info->drop_mutex); err = btrfs_update_root(trans, @@ -874,7 +870,7 @@ static noinline int finish_pending_snapshots(struct btrfs_trans_handle *trans, struct list_head *head = &trans->transaction->pending_snapshots; int ret; - while(!list_empty(head)) { + while (!list_empty(head)) { pending = list_entry(head->next, struct btrfs_pending_snapshot, list); ret = finish_pending_snapshot(fs_info, pending); @@ -1076,9 +1072,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, kmem_cache_free(btrfs_trans_handle_cachep, trans); - if (root->fs_info->closing) { + if (root->fs_info->closing) drop_dirty_roots(root->fs_info->tree_root, &dirty_fs_roots); - } return ret; } diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index ffe7f639732..ea292117f88 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -66,9 +66,9 @@ static inline void btrfs_set_trans_block_group(struct btrfs_trans_handle *trans, trans->block_group = BTRFS_I(inode)->block_group; } -static inline void btrfs_update_inode_block_group(struct - btrfs_trans_handle *trans, - struct inode *inode) +static inline void btrfs_update_inode_block_group( + struct btrfs_trans_handle *trans, + struct inode *inode) { BTRFS_I(inode)->block_group = trans->block_group; } diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c index a6a3956cedf..3e8358c3616 100644 --- a/fs/btrfs/tree-defrag.c +++ b/fs/btrfs/tree-defrag.c @@ -23,10 +23,11 @@ #include "transaction.h" #include "locking.h" -/* defrag all the leaves in a given btree. If cache_only == 1, don't read things - * from disk, otherwise read all the leaves and try to get key order to +/* defrag all the leaves in a given btree. If cache_only == 1, don't read + * things from disk, otherwise read all the leaves and try to get key order to * better reflect disk order */ + int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, struct btrfs_root *root, int cache_only) { @@ -65,9 +66,9 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, level = btrfs_header_level(root->node); orig_level = level; - if (level == 0) { + if (level == 0) goto out; - } + if (root->defrag_progress.objectid == 0) { struct extent_buffer *root_node; u32 nritems; diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index b1c2921f5be..3a72a1b6c24 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -829,7 +829,7 @@ conflict_again: */ ptr = btrfs_item_ptr_offset(leaf, path->slots[0]); ptr_end = ptr + btrfs_item_size_nr(leaf, path->slots[0]); - while(ptr < ptr_end) { + while (ptr < ptr_end) { victim_ref = (struct btrfs_inode_ref *)ptr; victim_name_len = btrfs_inode_ref_name_len(leaf, victim_ref); @@ -938,9 +938,8 @@ static noinline int replay_one_csum(struct btrfs_trans_handle *trans, file_bytes = (item_size / csum_size) * root->sectorsize; sums = kzalloc(btrfs_ordered_sum_size(root, file_bytes), GFP_NOFS); - if (!sums) { + if (!sums) return -ENOMEM; - } INIT_LIST_HEAD(&sums->list); sums->len = file_bytes; @@ -952,7 +951,7 @@ static noinline int replay_one_csum(struct btrfs_trans_handle *trans, sector_sum = sums->sums; cur_offset = key->offset; ptr = btrfs_item_ptr_offset(eb, slot); - while(item_size > 0) { + while (item_size > 0) { sector_sum->bytenr = cur_offset; read_extent_buffer(eb, §or_sum->sum, ptr, csum_size); sector_sum++; @@ -995,7 +994,7 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); - while(1) { + while (1) { ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) break; @@ -1012,7 +1011,7 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans, ptr = btrfs_item_ptr_offset(path->nodes[0], path->slots[0]); ptr_end = ptr + btrfs_item_size_nr(path->nodes[0], path->slots[0]); - while(ptr < ptr_end) { + while (ptr < ptr_end) { struct btrfs_inode_ref *ref; ref = (struct btrfs_inode_ref *)ptr; @@ -1048,7 +1047,7 @@ static noinline int fixup_inode_link_counts(struct btrfs_trans_handle *trans, key.objectid = BTRFS_TREE_LOG_FIXUP_OBJECTID; key.type = BTRFS_ORPHAN_ITEM_KEY; key.offset = (u64)-1; - while(1) { + while (1) { ret = btrfs_search_slot(trans, root, &key, path, -1, 1); if (ret < 0) break; @@ -1206,8 +1205,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans, if (key->type == BTRFS_DIR_ITEM_KEY) { dst_di = btrfs_lookup_dir_item(trans, root, path, key->objectid, name, name_len, 1); - } - else if (key->type == BTRFS_DIR_INDEX_KEY) { + } else if (key->type == BTRFS_DIR_INDEX_KEY) { dst_di = btrfs_lookup_dir_index_item(trans, root, path, key->objectid, key->offset, name, @@ -1282,7 +1280,7 @@ static noinline int replay_one_dir_item(struct btrfs_trans_handle *trans, ptr = btrfs_item_ptr_offset(eb, slot); ptr_end = ptr + item_size; - while(ptr < ptr_end) { + while (ptr < ptr_end) { di = (struct btrfs_dir_item *)ptr; name_len = btrfs_dir_name_len(eb, di); ret = replay_one_name(trans, root, path, eb, di, key); @@ -1408,7 +1406,7 @@ again: item_size = btrfs_item_size_nr(eb, slot); ptr = btrfs_item_ptr_offset(eb, slot); ptr_end = ptr + item_size; - while(ptr < ptr_end) { + while (ptr < ptr_end) { di = (struct btrfs_dir_item *)ptr; name_len = btrfs_dir_name_len(eb, di); name = kmalloc(name_len, GFP_NOFS); @@ -1513,14 +1511,14 @@ static noinline int replay_dir_deletes(struct btrfs_trans_handle *trans, again: range_start = 0; range_end = 0; - while(1) { + while (1) { ret = find_dir_range(log, path, dirid, key_type, &range_start, &range_end); if (ret != 0) break; dir_key.offset = range_start; - while(1) { + while (1) { int nritems; ret = btrfs_search_slot(NULL, root, &dir_key, path, 0, 0); @@ -1676,7 +1674,7 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb, return 0; } -static int noinline walk_down_log_tree(struct btrfs_trans_handle *trans, +static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int *level, struct walk_control *wc) @@ -1694,7 +1692,7 @@ static int noinline walk_down_log_tree(struct btrfs_trans_handle *trans, WARN_ON(*level < 0); WARN_ON(*level >= BTRFS_MAX_LEVEL); - while(*level > 0) { + while (*level > 0) { WARN_ON(*level < 0); WARN_ON(*level >= BTRFS_MAX_LEVEL); cur = path->nodes[*level]; @@ -1753,11 +1751,11 @@ static int noinline walk_down_log_tree(struct btrfs_trans_handle *trans, WARN_ON(*level < 0); WARN_ON(*level >= BTRFS_MAX_LEVEL); - if (path->nodes[*level] == root->node) { + if (path->nodes[*level] == root->node) parent = path->nodes[*level]; - } else { + else parent = path->nodes[*level + 1]; - } + bytenr = path->nodes[*level]->start; blocksize = btrfs_level_size(root, *level); @@ -1790,7 +1788,7 @@ static int noinline walk_down_log_tree(struct btrfs_trans_handle *trans, return 0; } -static int noinline walk_up_log_tree(struct btrfs_trans_handle *trans, +static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int *level, struct walk_control *wc) @@ -1801,7 +1799,7 @@ static int noinline walk_up_log_tree(struct btrfs_trans_handle *trans, int slot; int ret; - for(i = *level; i < BTRFS_MAX_LEVEL - 1 && path->nodes[i]; i++) { + for (i = *level; i < BTRFS_MAX_LEVEL - 1 && path->nodes[i]; i++) { slot = path->slots[i]; if (slot < btrfs_header_nritems(path->nodes[i]) - 1) { struct extent_buffer *node; @@ -1875,7 +1873,7 @@ static int walk_log_tree(struct btrfs_trans_handle *trans, extent_buffer_get(log->node); path->slots[level] = 0; - while(1) { + while (1) { wret = walk_down_log_tree(trans, log, path, &level, wc); if (wret > 0) break; @@ -1941,7 +1939,7 @@ static int wait_log_commit(struct btrfs_root *log) schedule(); finish_wait(&log->fs_info->tree_log_wait, &wait); mutex_lock(&log->fs_info->tree_log_mutex); - } while(transid == log->fs_info->tree_log_transid && + } while (transid == log->fs_info->tree_log_transid && atomic_read(&log->fs_info->tree_log_commit)); return 0; } @@ -1965,13 +1963,13 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, } atomic_set(&log->fs_info->tree_log_commit, 1); - while(1) { + while (1) { batch = log->fs_info->tree_log_batch; mutex_unlock(&log->fs_info->tree_log_mutex); schedule_timeout_uninterruptible(1); mutex_lock(&log->fs_info->tree_log_mutex); - while(atomic_read(&log->fs_info->tree_log_writers)) { + while (atomic_read(&log->fs_info->tree_log_writers)) { DEFINE_WAIT(wait); prepare_to_wait(&log->fs_info->tree_log_wait, &wait, TASK_UNINTERRUPTIBLE); @@ -2030,7 +2028,7 @@ int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root) ret = walk_log_tree(trans, log, &wc); BUG_ON(ret); - while(1) { + while (1) { ret = find_first_extent_bit(&log->dirty_log_pages, 0, &start, &end, EXTENT_DIRTY); if (ret) @@ -2287,9 +2285,8 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans, struct btrfs_key tmp; btrfs_item_key_to_cpu(path->nodes[0], &tmp, path->slots[0]); - if (key_type == tmp.type) { + if (key_type == tmp.type) first_offset = max(min_offset, tmp.offset) + 1; - } } goto done; } @@ -2319,7 +2316,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans, * we have a block from this transaction, log every item in it * from our directory */ - while(1) { + while (1) { struct btrfs_key tmp; src = path->nodes[0]; nritems = btrfs_header_nritems(src); @@ -2396,7 +2393,7 @@ static noinline int log_directory_changes(struct btrfs_trans_handle *trans, again: min_key = 0; max_key = 0; - while(1) { + while (1) { ret = log_dir_items(trans, root, inode, path, dst_path, key_type, min_key, &max_key); @@ -2432,7 +2429,7 @@ static int drop_objectid_items(struct btrfs_trans_handle *trans, key.type = max_key_type; key.offset = (u64)-1; - while(1) { + while (1) { ret = btrfs_search_slot(trans, log, &key, path, -1, 1); if (ret != 1) @@ -2481,7 +2478,7 @@ static noinline int copy_extent_csums(struct btrfs_trans_handle *trans, list_add_tail(&sums->list, list); path = btrfs_alloc_path(); - while(disk_bytenr < end) { + while (disk_bytenr < end) { if (!item || disk_bytenr < item_start_offset || disk_bytenr >= item_last_offset) { struct btrfs_key found_key; @@ -2496,7 +2493,8 @@ static noinline int copy_extent_csums(struct btrfs_trans_handle *trans, if (ret == -ENOENT || ret == -EFBIG) ret = 0; sum = 0; - printk("log no csum found for byte %llu\n", + printk(KERN_INFO "log no csum found for " + "byte %llu\n", (unsigned long long)disk_bytenr); item = NULL; btrfs_release_path(root, path); @@ -2643,7 +2641,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans, * we have to do this after the loop above to avoid changing the * log tree while trying to change the log tree. */ - while(!list_empty(&ordered_sums)) { + while (!list_empty(&ordered_sums)) { struct btrfs_ordered_sum *sums = list_entry(ordered_sums.next, struct btrfs_ordered_sum, list); @@ -2736,7 +2734,7 @@ static int __btrfs_log_inode(struct btrfs_trans_handle *trans, BUG_ON(ret); path->keep_locks = 1; - while(1) { + while (1) { ins_nr = 0; ret = btrfs_search_forward(root, &min_key, &max_key, path, 0, trans->transid); @@ -2848,7 +2846,7 @@ int btrfs_log_dentry(struct btrfs_trans_handle *trans, start_log_trans(trans, root); sb = dentry->d_inode->i_sb; - while(1) { + while (1) { ret = __btrfs_log_inode(trans, root, dentry->d_inode, inode_only); BUG_ON(ret); @@ -2919,7 +2917,7 @@ again: key.offset = (u64)-1; btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY); - while(1) { + while (1) { ret = btrfs_search_slot(NULL, log_root_tree, &key, path, 0, 0); if (ret < 0) break; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 6672adcec9f..b187b537888 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -140,7 +140,7 @@ static noinline struct btrfs_fs_devices *find_fsid(u8 *fsid) * the list if the block device is congested. This way, multiple devices * can make progress from a single worker thread. */ -static int noinline run_scheduled_bios(struct btrfs_device *device) +static noinline int run_scheduled_bios(struct btrfs_device *device) { struct bio *pending; struct backing_dev_info *bdi; @@ -187,7 +187,7 @@ loop: } spin_unlock(&device->io_lock); - while(pending) { + while (pending) { cur = pending; pending = pending->bi_next; cur->bi_next = NULL; @@ -458,7 +458,7 @@ static int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, bdev = open_bdev_exclusive(device->name, flags, holder); if (IS_ERR(bdev)) { - printk("open %s failed\n", device->name); + printk(KERN_INFO "open %s failed\n", device->name); goto error; } set_blocksize(bdev, 4096); @@ -570,14 +570,15 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder, devid = le64_to_cpu(disk_super->dev_item.devid); transid = btrfs_super_generation(disk_super); if (disk_super->label[0]) - printk("device label %s ", disk_super->label); + printk(KERN_INFO "device label %s ", disk_super->label); else { /* FIXME, make a readl uuid parser */ - printk("device fsid %llx-%llx ", + printk(KERN_INFO "device fsid %llx-%llx ", *(unsigned long long *)disk_super->fsid, *(unsigned long long *)(disk_super->fsid + 8)); } - printk("devid %Lu transid %Lu %s\n", devid, transid, path); + printk(KERN_INFO "devid %llu transid %llu %s\n", + (unsigned long long)devid, (unsigned long long)transid, path); ret = device_list_add(path, disk_super, devid, fs_devices_ret); brelse(bh); @@ -683,9 +684,8 @@ no_more_items: goto check_pending; } } - if (btrfs_key_type(&key) != BTRFS_DEV_EXTENT_KEY) { + if (btrfs_key_type(&key) != BTRFS_DEV_EXTENT_KEY) goto next; - } start_found = 1; dev_extent = btrfs_item_ptr(l, slot, struct btrfs_dev_extent); @@ -1001,14 +1001,16 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) if ((all_avail & BTRFS_BLOCK_GROUP_RAID10) && root->fs_info->fs_devices->rw_devices <= 4) { - printk("btrfs: unable to go below four devices on raid10\n"); + printk(KERN_ERR "btrfs: unable to go below four devices " + "on raid10\n"); ret = -EINVAL; goto out; } if ((all_avail & BTRFS_BLOCK_GROUP_RAID1) && root->fs_info->fs_devices->rw_devices <= 2) { - printk("btrfs: unable to go below two devices on raid1\n"); + printk(KERN_ERR "btrfs: unable to go below two " + "devices on raid1\n"); ret = -EINVAL; goto out; } @@ -1031,7 +1033,8 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) bh = NULL; disk_super = NULL; if (!device) { - printk("btrfs: no missing devices found to remove\n"); + printk(KERN_ERR "btrfs: no missing devices found to " + "remove\n"); goto out; } } else { @@ -1060,7 +1063,8 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) } if (device->writeable && root->fs_info->fs_devices->rw_devices == 1) { - printk("btrfs: unable to remove the only writeable device\n"); + printk(KERN_ERR "btrfs: unable to remove the only writeable " + "device\n"); ret = -EINVAL; goto error_brelse; } @@ -1286,9 +1290,8 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) return -EINVAL; bdev = open_bdev_exclusive(device_path, 0, root->fs_info->bdev_holder); - if (!bdev) { + if (!bdev) return -EIO; - } if (root->fs_info->fs_devices->seeding) { seeding_dev = 1; @@ -1401,8 +1404,8 @@ error: goto out; } -static int noinline btrfs_update_device(struct btrfs_trans_handle *trans, - struct btrfs_device *device) +static noinline int btrfs_update_device(struct btrfs_trans_handle *trans, + struct btrfs_device *device) { int ret; struct btrfs_path *path; @@ -1563,7 +1566,7 @@ static int btrfs_relocate_chunk(struct btrfs_root *root, int ret; int i; - printk("btrfs relocating chunk %llu\n", + printk(KERN_INFO "btrfs relocating chunk %llu\n", (unsigned long long)chunk_offset); root = root->fs_info->chunk_root; extent_root = root->fs_info->extent_root; @@ -1748,7 +1751,7 @@ int btrfs_balance(struct btrfs_root *dev_root) key.offset = (u64)-1; key.type = BTRFS_CHUNK_ITEM_KEY; - while(1) { + while (1) { ret = btrfs_search_slot(NULL, chunk_root, &key, path, 0, 0); if (ret < 0) goto error; @@ -1916,7 +1919,7 @@ static int btrfs_add_system_chunk(struct btrfs_trans_handle *trans, return 0; } -static u64 noinline chunk_bytes_by_type(u64 type, u64 calc_size, +static noinline u64 chunk_bytes_by_type(u64 type, u64 calc_size, int num_stripes, int sub_stripes) { if (type & (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_DUP)) @@ -2041,7 +2044,7 @@ again: min_free += 1024 * 1024; INIT_LIST_HEAD(&private_devs); - while(index < num_stripes) { + while (index < num_stripes) { device = list_entry(cur, struct btrfs_device, dev_alloc_list); BUG_ON(!device->writeable); if (device->total_bytes > device->bytes_used) @@ -2242,7 +2245,7 @@ int btrfs_alloc_chunk(struct btrfs_trans_handle *trans, return 0; } -static int noinline init_first_rw_device(struct btrfs_trans_handle *trans, +static noinline int init_first_rw_device(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_device *device) { @@ -2338,7 +2341,7 @@ void btrfs_mapping_tree_free(struct btrfs_mapping_tree *tree) { struct extent_map *em; - while(1) { + while (1) { spin_lock(&tree->map_tree.lock); em = lookup_extent_mapping(&tree->map_tree, 0, (u64)-1); if (em) @@ -2413,9 +2416,8 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw, int max_errors = 0; struct btrfs_multi_bio *multi = NULL; - if (multi_ret && !(rw & (1 << BIO_RW))) { + if (multi_ret && !(rw & (1 << BIO_RW))) stripes_allocated = 1; - } again: if (multi_ret) { multi = kzalloc(btrfs_multi_bio_size(stripes_allocated), @@ -2434,7 +2436,9 @@ again: return 0; if (!em) { - printk("unable to find logical %Lu len %Lu\n", logical, *length); + printk(KERN_CRIT "unable to find logical %llu len %llu\n", + (unsigned long long)logical, + (unsigned long long)*length); BUG(); } @@ -2541,9 +2545,8 @@ again: device = map->stripes[stripe_index].dev; if (device->bdev) { bdi = blk_get_backing_dev_info(device->bdev); - if (bdi->unplug_io_fn) { + if (bdi->unplug_io_fn) bdi->unplug_io_fn(bdi, unplug_page); - } } } else { multi->stripes[i].physical = @@ -2717,7 +2720,7 @@ struct async_sched { * This will add one bio to the pending list for a device and make sure * the work struct is scheduled. */ -static int noinline schedule_bio(struct btrfs_root *root, +static noinline int schedule_bio(struct btrfs_root *root, struct btrfs_device *device, int rw, struct bio *bio) { @@ -2785,8 +2788,10 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, total_devs = multi->num_stripes; if (map_length < length) { - printk("mapping failed logical %Lu bio len %Lu " - "len %Lu\n", logical, length, map_length); + printk(KERN_CRIT "mapping failed logical %llu bio len %llu " + "len %llu\n", (unsigned long long)logical, + (unsigned long long)length, + (unsigned long long)map_length); BUG(); } multi->end_io = first_bio->bi_end_io; @@ -2794,7 +2799,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, multi->orig_bio = first_bio; atomic_set(&multi->stripes_pending, multi->num_stripes); - while(dev_nr < total_devs) { + while (dev_nr < total_devs) { if (total_devs > 1) { if (dev_nr < total_devs - 1) { bio = bio_clone(first_bio, GFP_NOFS); @@ -3058,7 +3063,8 @@ static int read_one_dev(struct btrfs_root *root, return -EIO; if (!device) { - printk("warning devid %Lu missing\n", devid); + printk(KERN_WARNING "warning devid %llu missing\n", + (unsigned long long)devid); device = add_missing_dev(root, devid, dev_uuid); if (!device) return -ENOMEM; @@ -3078,12 +3084,6 @@ static int read_one_dev(struct btrfs_root *root, if (device->writeable) device->fs_devices->total_rw_bytes += device->total_bytes; ret = 0; -#if 0 - ret = btrfs_open_device(device); - if (ret) { - kfree(device); - } -#endif return ret; } @@ -3174,7 +3174,7 @@ int btrfs_read_chunk_tree(struct btrfs_root *root) key.type = 0; again: ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); - while(1) { + while (1) { leaf = path->nodes[0]; slot = path->slots[0]; if (slot >= btrfs_header_nritems(leaf)) { diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index 4146f0710e6..7f332e27089 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -264,7 +264,8 @@ struct xattr_handler *btrfs_xattr_handlers[] = { */ static bool btrfs_is_valid_xattr(const char *name) { - return !strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) || + return !strncmp(name, XATTR_SECURITY_PREFIX, + XATTR_SECURITY_PREFIX_LEN) || !strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) || !strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) || !strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c index c4617cde6c7..ecfbce836d3 100644 --- a/fs/btrfs/zlib.c +++ b/fs/btrfs/zlib.c @@ -152,7 +152,7 @@ static int free_workspace(struct workspace *workspace) static void free_workspaces(void) { struct workspace *workspace; - while(!list_empty(&idle_workspace)) { + while (!list_empty(&idle_workspace)) { workspace = list_entry(idle_workspace.next, struct workspace, list); list_del(&workspace->list); @@ -397,12 +397,10 @@ int btrfs_zlib_decompress_biovec(struct page **pages_in, ret = -1; goto out; } - while(workspace->inf_strm.total_in < srclen) { + while (workspace->inf_strm.total_in < srclen) { ret = zlib_inflate(&workspace->inf_strm, Z_NO_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) { + if (ret != Z_OK && ret != Z_STREAM_END) break; - } - /* * buf start is the byte offset we're of the start of * our workspace buffer @@ -424,16 +422,14 @@ int btrfs_zlib_decompress_biovec(struct page **pages_in, /* we didn't make progress in this inflate * call, we're done */ - if (ret != Z_STREAM_END) { + if (ret != Z_STREAM_END) ret = -1; - } break; } /* we haven't yet hit data corresponding to this page */ - if (total_out <= start_byte) { + if (total_out <= start_byte) goto next; - } /* * the start of the data we care about is offset into @@ -448,7 +444,7 @@ int btrfs_zlib_decompress_biovec(struct page **pages_in, current_buf_start = buf_start; /* copy bytes from the working buffer into the pages */ - while(working_bytes > 0) { + while (working_bytes > 0) { bytes = min(PAGE_CACHE_SIZE - pg_offset, PAGE_CACHE_SIZE - buf_offset); bytes = min(bytes, working_bytes); @@ -471,6 +467,7 @@ int btrfs_zlib_decompress_biovec(struct page **pages_in, ret = 0; goto done; } + page_out = bvec[page_out_index].bv_page; pg_offset = 0; page_bytes_left = PAGE_CACHE_SIZE; @@ -480,9 +477,8 @@ int btrfs_zlib_decompress_biovec(struct page **pages_in, * make sure our new page is covered by this * working buffer */ - if (total_out <= start_byte) { + if (total_out <= start_byte) goto next; - } /* the next page in the biovec might not * be adjacent to the last page, but it @@ -517,11 +513,10 @@ next: PAGE_CACHE_SIZE); } } - if (ret != Z_STREAM_END) { + if (ret != Z_STREAM_END) ret = -1; - } else { + else ret = 0; - } done: zlib_inflateEnd(&workspace->inf_strm); if (data_in) @@ -579,16 +574,15 @@ int btrfs_zlib_decompress(unsigned char *data_in, goto out; } - while(bytes_left > 0) { + while (bytes_left > 0) { unsigned long buf_start; unsigned long buf_offset; unsigned long bytes; unsigned long pg_offset = 0; ret = zlib_inflate(&workspace->inf_strm, Z_NO_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) { + if (ret != Z_OK && ret != Z_STREAM_END) break; - } buf_start = total_out; total_out = workspace->inf_strm.total_out; @@ -598,15 +592,13 @@ int btrfs_zlib_decompress(unsigned char *data_in, break; } - if (total_out <= start_byte) { + if (total_out <= start_byte) goto next; - } - if (total_out > start_byte && buf_start < start_byte) { + if (total_out > start_byte && buf_start < start_byte) buf_offset = start_byte - buf_start; - } else { + else buf_offset = 0; - } bytes = min(PAGE_CACHE_SIZE - pg_offset, PAGE_CACHE_SIZE - buf_offset); @@ -622,11 +614,12 @@ next: workspace->inf_strm.next_out = workspace->buf; workspace->inf_strm.avail_out = PAGE_CACHE_SIZE; } - if (ret != Z_STREAM_END && bytes_left != 0) { + + if (ret != Z_STREAM_END && bytes_left != 0) ret = -1; - } else { + else ret = 0; - } + zlib_inflateEnd(&workspace->inf_strm); out: free_workspace(workspace); -- cgit v1.2.3-70-g09d2