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-rw-r--r--fs/cifs/cifsfs.c149
-rw-r--r--fs/cifs/cifsfs.h34
-rw-r--r--fs/cifs/cifsglob.h8
-rw-r--r--fs/cifs/connect.c5
-rw-r--r--fs/cifs/file.c97
-rw-r--r--fs/cifs/inode.c71
-rw-r--r--fs/cifs/ioctl.c2
-rw-r--r--fs/cifs/netmisc.c9
-rw-r--r--fs/cifs/smb2ops.c2
-rw-r--r--fs/cifs/smb2pdu.c19
-rw-r--r--fs/cifs/smb2pdu.h8
11 files changed, 223 insertions, 181 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 5be1f997ecd..2c90d07c0b3 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -87,10 +87,6 @@ extern mempool_t *cifs_mid_poolp;
struct workqueue_struct *cifsiod_wq;
-#ifdef CONFIG_CIFS_SMB2
-__u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
-#endif
-
/*
* Bumps refcount for cifs super block.
* Note that it should be only called if a referece to VFS super block is
@@ -251,11 +247,7 @@ cifs_alloc_inode(struct super_block *sb)
* server, can not assume caching of file data or metadata.
*/
cifs_set_oplock_level(cifs_inode, 0);
- cifs_inode->delete_pending = false;
- cifs_inode->invalid_mapping = false;
- clear_bit(CIFS_INODE_PENDING_OPLOCK_BREAK, &cifs_inode->flags);
- clear_bit(CIFS_INODE_PENDING_WRITERS, &cifs_inode->flags);
- clear_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2, &cifs_inode->flags);
+ cifs_inode->flags = 0;
spin_lock_init(&cifs_inode->writers_lock);
cifs_inode->writers = 0;
cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */
@@ -302,7 +294,7 @@ cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server)
struct sockaddr_in *sa = (struct sockaddr_in *) &server->dstaddr;
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &server->dstaddr;
- seq_printf(s, ",addr=");
+ seq_puts(s, ",addr=");
switch (server->dstaddr.ss_family) {
case AF_INET:
@@ -314,7 +306,7 @@ cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server)
seq_printf(s, "%%%u", sa6->sin6_scope_id);
break;
default:
- seq_printf(s, "(unknown)");
+ seq_puts(s, "(unknown)");
}
}
@@ -324,45 +316,45 @@ cifs_show_security(struct seq_file *s, struct cifs_ses *ses)
if (ses->sectype == Unspecified)
return;
- seq_printf(s, ",sec=");
+ seq_puts(s, ",sec=");
switch (ses->sectype) {
case LANMAN:
- seq_printf(s, "lanman");
+ seq_puts(s, "lanman");
break;
case NTLMv2:
- seq_printf(s, "ntlmv2");
+ seq_puts(s, "ntlmv2");
break;
case NTLM:
- seq_printf(s, "ntlm");
+ seq_puts(s, "ntlm");
break;
case Kerberos:
- seq_printf(s, "krb5");
+ seq_puts(s, "krb5");
break;
case RawNTLMSSP:
- seq_printf(s, "ntlmssp");
+ seq_puts(s, "ntlmssp");
break;
default:
/* shouldn't ever happen */
- seq_printf(s, "unknown");
+ seq_puts(s, "unknown");
break;
}
if (ses->sign)
- seq_printf(s, "i");
+ seq_puts(s, "i");
}
static void
cifs_show_cache_flavor(struct seq_file *s, struct cifs_sb_info *cifs_sb)
{
- seq_printf(s, ",cache=");
+ seq_puts(s, ",cache=");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
- seq_printf(s, "strict");
+ seq_puts(s, "strict");
else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
- seq_printf(s, "none");
+ seq_puts(s, "none");
else
- seq_printf(s, "loose");
+ seq_puts(s, "loose");
}
static void
@@ -395,7 +387,7 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
cifs_show_cache_flavor(s, cifs_sb);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)
- seq_printf(s, ",multiuser");
+ seq_puts(s, ",multiuser");
else if (tcon->ses->user_name)
seq_printf(s, ",username=%s", tcon->ses->user_name);
@@ -421,16 +413,16 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
seq_printf(s, ",uid=%u",
from_kuid_munged(&init_user_ns, cifs_sb->mnt_uid));
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
- seq_printf(s, ",forceuid");
+ seq_puts(s, ",forceuid");
else
- seq_printf(s, ",noforceuid");
+ seq_puts(s, ",noforceuid");
seq_printf(s, ",gid=%u",
from_kgid_munged(&init_user_ns, cifs_sb->mnt_gid));
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)
- seq_printf(s, ",forcegid");
+ seq_puts(s, ",forcegid");
else
- seq_printf(s, ",noforcegid");
+ seq_puts(s, ",noforcegid");
cifs_show_address(s, tcon->ses->server);
@@ -442,47 +434,47 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
cifs_show_nls(s, cifs_sb->local_nls);
if (tcon->seal)
- seq_printf(s, ",seal");
+ seq_puts(s, ",seal");
if (tcon->nocase)
- seq_printf(s, ",nocase");
+ seq_puts(s, ",nocase");
if (tcon->retry)
- seq_printf(s, ",hard");
+ seq_puts(s, ",hard");
if (tcon->unix_ext)
- seq_printf(s, ",unix");
+ seq_puts(s, ",unix");
else
- seq_printf(s, ",nounix");
+ seq_puts(s, ",nounix");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
- seq_printf(s, ",posixpaths");
+ seq_puts(s, ",posixpaths");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
- seq_printf(s, ",setuids");
+ seq_puts(s, ",setuids");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
- seq_printf(s, ",serverino");
+ seq_puts(s, ",serverino");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
- seq_printf(s, ",rwpidforward");
+ seq_puts(s, ",rwpidforward");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL)
- seq_printf(s, ",forcemand");
+ seq_puts(s, ",forcemand");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
- seq_printf(s, ",nouser_xattr");
+ seq_puts(s, ",nouser_xattr");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
- seq_printf(s, ",mapchars");
+ seq_puts(s, ",mapchars");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
- seq_printf(s, ",sfu");
+ seq_puts(s, ",sfu");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- seq_printf(s, ",nobrl");
+ seq_puts(s, ",nobrl");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
- seq_printf(s, ",cifsacl");
+ seq_puts(s, ",cifsacl");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
- seq_printf(s, ",dynperm");
+ seq_puts(s, ",dynperm");
if (root->d_sb->s_flags & MS_POSIXACL)
- seq_printf(s, ",acl");
+ seq_puts(s, ",acl");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
- seq_printf(s, ",mfsymlinks");
+ seq_puts(s, ",mfsymlinks");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE)
- seq_printf(s, ",fsc");
+ seq_puts(s, ",fsc");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)
- seq_printf(s, ",nostrictsync");
+ seq_puts(s, ",nostrictsync");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
- seq_printf(s, ",noperm");
+ seq_puts(s, ",noperm");
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPUID)
seq_printf(s, ",backupuid=%u",
from_kuid_munged(&init_user_ns,
@@ -733,8 +725,7 @@ out_nls:
goto out;
}
-static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
+static ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
struct inode *inode = file_inode(iocb->ki_filp);
struct cifsInodeInfo *cinode = CIFS_I(inode);
@@ -745,14 +736,14 @@ static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
if (written)
return written;
- written = generic_file_aio_write(iocb, iov, nr_segs, pos);
+ written = generic_file_write_iter(iocb, from);
if (CIFS_CACHE_WRITE(CIFS_I(inode)))
goto out;
rc = filemap_fdatawrite(inode->i_mapping);
if (rc)
- cifs_dbg(FYI, "cifs_file_aio_write: %d rc on %p inode\n",
+ cifs_dbg(FYI, "cifs_file_write_iter: %d rc on %p inode\n",
rc, inode);
out:
@@ -888,10 +879,10 @@ const struct inode_operations cifs_symlink_inode_ops = {
};
const struct file_operations cifs_file_ops = {
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = generic_file_aio_read,
- .aio_write = cifs_file_aio_write,
+ .read = new_sync_read,
+ .write = new_sync_write,
+ .read_iter = generic_file_read_iter,
+ .write_iter = cifs_file_write_iter,
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
@@ -907,10 +898,10 @@ const struct file_operations cifs_file_ops = {
};
const struct file_operations cifs_file_strict_ops = {
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = cifs_strict_readv,
- .aio_write = cifs_strict_writev,
+ .read = new_sync_read,
+ .write = new_sync_write,
+ .read_iter = cifs_strict_readv,
+ .write_iter = cifs_strict_writev,
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
@@ -927,10 +918,10 @@ const struct file_operations cifs_file_strict_ops = {
const struct file_operations cifs_file_direct_ops = {
/* BB reevaluate whether they can be done with directio, no cache */
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = cifs_user_readv,
- .aio_write = cifs_user_writev,
+ .read = new_sync_read,
+ .write = new_sync_write,
+ .read_iter = cifs_user_readv,
+ .write_iter = cifs_user_writev,
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
@@ -946,10 +937,10 @@ const struct file_operations cifs_file_direct_ops = {
};
const struct file_operations cifs_file_nobrl_ops = {
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = generic_file_aio_read,
- .aio_write = cifs_file_aio_write,
+ .read = new_sync_read,
+ .write = new_sync_write,
+ .read_iter = generic_file_read_iter,
+ .write_iter = cifs_file_write_iter,
.open = cifs_open,
.release = cifs_close,
.fsync = cifs_fsync,
@@ -964,10 +955,10 @@ const struct file_operations cifs_file_nobrl_ops = {
};
const struct file_operations cifs_file_strict_nobrl_ops = {
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = cifs_strict_readv,
- .aio_write = cifs_strict_writev,
+ .read = new_sync_read,
+ .write = new_sync_write,
+ .read_iter = cifs_strict_readv,
+ .write_iter = cifs_strict_writev,
.open = cifs_open,
.release = cifs_close,
.fsync = cifs_strict_fsync,
@@ -983,10 +974,10 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
const struct file_operations cifs_file_direct_nobrl_ops = {
/* BB reevaluate whether they can be done with directio, no cache */
- .read = do_sync_read,
- .write = do_sync_write,
- .aio_read = cifs_user_readv,
- .aio_write = cifs_user_writev,
+ .read = new_sync_read,
+ .write = new_sync_write,
+ .read_iter = cifs_user_readv,
+ .write_iter = cifs_user_writev,
.open = cifs_open,
.release = cifs_close,
.fsync = cifs_fsync,
@@ -1192,10 +1183,6 @@ init_cifs(void)
spin_lock_init(&cifs_file_list_lock);
spin_lock_init(&GlobalMid_Lock);
-#ifdef CONFIG_CIFS_SMB2
- get_random_bytes(cifs_client_guid, SMB2_CLIENT_GUID_SIZE);
-#endif
-
if (cifs_max_pending < 2) {
cifs_max_pending = 2;
cifs_dbg(FYI, "cifs_max_pending set to min of 2\n");
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 26a754f49ba..70f178a7c75 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -22,20 +22,28 @@
#ifndef _CIFSFS_H
#define _CIFSFS_H
+#include <linux/hash.h>
+
#define ROOT_I 2
/*
* ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
- * so that it will fit.
+ * so that it will fit. We use hash_64 to convert the value to 31 bits, and
+ * then add 1, to ensure that we don't end up with a 0 as the value.
*/
+#if BITS_PER_LONG == 64
static inline ino_t
cifs_uniqueid_to_ino_t(u64 fileid)
{
- ino_t ino = (ino_t) fileid;
- if (sizeof(ino_t) < sizeof(u64))
- ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
- return ino;
+ return (ino_t)fileid;
}
+#else
+static inline ino_t
+cifs_uniqueid_to_ino_t(u64 fileid)
+{
+ return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
+}
+#endif
extern struct file_system_type cifs_fs_type;
extern const struct address_space_operations cifs_addr_ops;
@@ -67,6 +75,8 @@ extern int cifs_revalidate_dentry_attr(struct dentry *);
extern int cifs_revalidate_file(struct file *filp);
extern int cifs_revalidate_dentry(struct dentry *);
extern int cifs_invalidate_mapping(struct inode *inode);
+extern int cifs_revalidate_mapping(struct inode *inode);
+extern int cifs_zap_mapping(struct inode *inode);
extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int cifs_setattr(struct dentry *, struct iattr *);
@@ -85,14 +95,10 @@ extern const struct file_operations cifs_file_strict_nobrl_ops;
extern int cifs_open(struct inode *inode, struct file *file);
extern int cifs_close(struct inode *inode, struct file *file);
extern int cifs_closedir(struct inode *inode, struct file *file);
-extern ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos);
-extern ssize_t cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos);
-extern ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos);
-extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos);
+extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to);
+extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);
+extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);
+extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);
extern int cifs_lock(struct file *, int, struct file_lock *);
extern int cifs_fsync(struct file *, loff_t, loff_t, int);
extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
@@ -130,5 +136,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
extern const struct export_operations cifs_export_ops;
#endif /* CONFIG_CIFS_NFSD_EXPORT */
-#define CIFS_VERSION "2.02"
+#define CIFS_VERSION "2.03"
#endif /* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 30f6e9251a4..de6aed8c78e 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -559,6 +559,7 @@ struct TCP_Server_Info {
int echo_credits; /* echo reserved slots */
int oplock_credits; /* oplock break reserved slots */
bool echoes:1; /* enable echoes */
+ __u8 client_guid[SMB2_CLIENT_GUID_SIZE]; /* Client GUID */
#endif
u16 dialect; /* dialect index that server chose */
bool oplocks:1; /* enable oplocks */
@@ -1113,12 +1114,13 @@ struct cifsInodeInfo {
__u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
unsigned int oplock; /* oplock/lease level we have */
unsigned int epoch; /* used to track lease state changes */
- bool delete_pending; /* DELETE_ON_CLOSE is set */
- bool invalid_mapping; /* pagecache is invalid */
- unsigned long flags;
#define CIFS_INODE_PENDING_OPLOCK_BREAK (0) /* oplock break in progress */
#define CIFS_INODE_PENDING_WRITERS (1) /* Writes in progress */
#define CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2 (2) /* Downgrade oplock to L2 */
+#define CIFS_INO_DELETE_PENDING (3) /* delete pending on server */
+#define CIFS_INO_INVALID_MAPPING (4) /* pagecache is invalid */
+#define CIFS_INO_LOCK (5) /* lock bit for synchronization */
+ unsigned long flags;
spinlock_t writers_lock;
unsigned int writers; /* Number of writers on this inode */
unsigned long time; /* jiffies of last update of inode */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 8813ff776ba..20d75b8ddb2 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2144,6 +2144,9 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
sizeof(tcp_ses->srcaddr));
memcpy(&tcp_ses->dstaddr, &volume_info->dstaddr,
sizeof(tcp_ses->dstaddr));
+#ifdef CONFIG_CIFS_SMB2
+ get_random_bytes(tcp_ses->client_guid, SMB2_CLIENT_GUID_SIZE);
+#endif
/*
* at this point we are the only ones with the pointer
* to the struct since the kernel thread not created yet
@@ -2225,7 +2228,7 @@ static int match_session(struct cifs_ses *ses, struct smb_vol *vol)
vol->username ? vol->username : "",
CIFS_MAX_USERNAME_LEN))
return 0;
- if (strlen(vol->username) != 0 &&
+ if ((vol->username && strlen(vol->username) != 0) &&
ses->password != NULL &&
strncmp(ses->password,
vol->password ? vol->password : "",
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 5ed03e0b8b4..e90a1e9aa62 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -335,7 +335,7 @@ cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
spin_unlock(&cifs_file_list_lock);
if (fid->purge_cache)
- cifs_invalidate_mapping(inode);
+ cifs_zap_mapping(inode);
file->private_data = cfile;
return cfile;
@@ -392,7 +392,7 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
* again and get at least level II oplock.
*/
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
- CIFS_I(inode)->invalid_mapping = true;
+ set_bit(CIFS_INO_INVALID_MAPPING, &cifsi->flags);
cifs_set_oplock_level(cifsi, 0);
}
spin_unlock(&cifs_file_list_lock);
@@ -1529,7 +1529,7 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u32 type,
*/
if (!CIFS_CACHE_WRITE(CIFS_I(inode)) &&
CIFS_CACHE_READ(CIFS_I(inode))) {
- cifs_invalidate_mapping(inode);
+ cifs_zap_mapping(inode);
cifs_dbg(FYI, "Set no oplock for inode=%p due to mand locks\n",
inode);
CIFS_I(inode)->oplock = 0;
@@ -2218,7 +2218,7 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
file->f_path.dentry->d_name.name, datasync);
if (!CIFS_CACHE_READ(CIFS_I(inode))) {
- rc = cifs_invalidate_mapping(inode);
+ rc = cifs_zap_mapping(inode);
if (rc) {
cifs_dbg(FYI, "rc: %d during invalidate phase\n", rc);
rc = 0; /* don't care about it in fsync */
@@ -2385,14 +2385,12 @@ cifs_uncached_retry_writev(struct cifs_writedata *wdata)
}
static ssize_t
-cifs_iovec_write(struct file *file, const struct iovec *iov,
- unsigned long nr_segs, loff_t *poffset)
+cifs_iovec_write(struct file *file, struct iov_iter *from, loff_t *poffset)
{
unsigned long nr_pages, i;
size_t bytes, copied, len, cur_len;
ssize_t total_written = 0;
loff_t offset;
- struct iov_iter it;
struct cifsFileInfo *open_file;
struct cifs_tcon *tcon;
struct cifs_sb_info *cifs_sb;
@@ -2401,14 +2399,16 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
int rc;
pid_t pid;
- len = iov_length(iov, nr_segs);
- if (!len)
- return 0;
-
+ len = iov_iter_count(from);
rc = generic_write_checks(file, poffset, &len, 0);
if (rc)
return rc;
+ if (!len)
+ return 0;
+
+ iov_iter_truncate(from, len);
+
INIT_LIST_HEAD(&wdata_list);
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
open_file = file->private_data;
@@ -2424,7 +2424,6 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
else
pid = current->tgid;
- iov_iter_init(&it, iov, nr_segs, len, 0);
do {
size_t save_len;
@@ -2444,11 +2443,10 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
save_len = cur_len;
for (i = 0; i < nr_pages; i++) {
- bytes = min_t(const size_t, cur_len, PAGE_SIZE);
- copied = iov_iter_copy_from_user(wdata->pages[i], &it,
- 0, bytes);
+ bytes = min_t(size_t, cur_len, PAGE_SIZE);
+ copied = copy_page_from_iter(wdata->pages[i], 0, bytes,
+ from);
cur_len -= copied;
- iov_iter_advance(&it, copied);
/*
* If we didn't copy as much as we expected, then that
* may mean we trod into an unmapped area. Stop copying
@@ -2546,11 +2544,11 @@ restart_loop:
return total_written ? total_written : (ssize_t)rc;
}
-ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
+ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from)
{
ssize_t written;
struct inode *inode;
+ loff_t pos = iocb->ki_pos;
inode = file_inode(iocb->ki_filp);
@@ -2560,9 +2558,9 @@ ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
* write request.
*/
- written = cifs_iovec_write(iocb->ki_filp, iov, nr_segs, &pos);
+ written = cifs_iovec_write(iocb->ki_filp, from, &pos);
if (written > 0) {
- CIFS_I(inode)->invalid_mapping = true;
+ set_bit(CIFS_INO_INVALID_MAPPING, &CIFS_I(inode)->flags);
iocb->ki_pos = pos;
}
@@ -2570,8 +2568,7 @@ ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
}
static ssize_t
-cifs_writev(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
+cifs_writev(struct kiocb *iocb, struct iov_iter *from)
{
struct file *file = iocb->ki_filp;
struct cifsFileInfo *cfile = (struct cifsFileInfo *)file->private_data;
@@ -2589,10 +2586,10 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov,
mutex_lock(&inode->i_mutex);
if (file->f_flags & O_APPEND)
lock_pos = i_size_read(inode);
- if (!cifs_find_lock_conflict(cfile, lock_pos, iov_length(iov, nr_segs),
+ if (!cifs_find_lock_conflict(cfile, lock_pos, iov_iter_count(from),
server->vals->exclusive_lock_type, NULL,
CIFS_WRITE_OP)) {
- rc = __generic_file_aio_write(iocb, iov, nr_segs);
+ rc = __generic_file_write_iter(iocb, from);
mutex_unlock(&inode->i_mutex);
if (rc > 0) {
@@ -2610,8 +2607,7 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov,
}
ssize_t
-cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
+cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from)
{
struct inode *inode = file_inode(iocb->ki_filp);
struct cifsInodeInfo *cinode = CIFS_I(inode);
@@ -2629,11 +2625,10 @@ cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability))
&& ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0)) {
- written = generic_file_aio_write(
- iocb, iov, nr_segs, pos);
+ written = generic_file_write_iter(iocb, from);
goto out;
}
- written = cifs_writev(iocb, iov, nr_segs, pos);
+ written = cifs_writev(iocb, from);
goto out;
}
/*
@@ -2642,14 +2637,14 @@ cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
* affected pages because it may cause a error with mandatory locks on
* these pages but not on the region from pos to ppos+len-1.
*/
- written = cifs_user_writev(iocb, iov, nr_segs, pos);
+ written = cifs_user_writev(iocb, from);
if (written > 0 && CIFS_CACHE_READ(cinode)) {
/*
* Windows 7 server can delay breaking level2 oplock if a write
* request comes - break it on the client to prevent reading
* an old data.
*/
- cifs_invalidate_mapping(inode);
+ cifs_zap_mapping(inode);
cifs_dbg(FYI, "Set no oplock for inode=%p after a write operation\n",
inode);
cinode->oplock = 0;
@@ -2831,32 +2826,25 @@ cifs_uncached_read_into_pages(struct TCP_Server_Info *server,
return total_read > 0 ? total_read : result;
}
-ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
+ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to)
{
struct file *file = iocb->ki_filp;
ssize_t rc;
size_t len, cur_len;
ssize_t total_read = 0;
- loff_t offset = pos;
+ loff_t offset = iocb->ki_pos;
unsigned int npages;
struct cifs_sb_info *cifs_sb;
struct cifs_tcon *tcon;
struct cifsFileInfo *open_file;
struct cifs_readdata *rdata, *tmp;
struct list_head rdata_list;
- struct iov_iter to;
pid_t pid;
- if (!nr_segs)
- return 0;
-
- len = iov_length(iov, nr_segs);
+ len = iov_iter_count(to);
if (!len)
return 0;
- iov_iter_init(&to, iov, nr_segs, len, 0);
-
INIT_LIST_HEAD(&rdata_list);
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
open_file = file->private_data;
@@ -2914,7 +2902,7 @@ error:
if (!list_empty(&rdata_list))
rc = 0;
- len = iov_iter_count(&to);
+ len = iov_iter_count(to);
/* the loop below should proceed in the order of increasing offsets */
list_for_each_entry_safe(rdata, tmp, &rdata_list, list) {
again:
@@ -2931,7 +2919,7 @@ error:
goto again;
}
} else {
- rc = cifs_readdata_to_iov(rdata, &to);
+ rc = cifs_readdata_to_iov(rdata, to);
}
}
@@ -2939,7 +2927,7 @@ error:
kref_put(&rdata->refcount, cifs_uncached_readdata_release);
}
- total_read = len - iov_iter_count(&to);
+ total_read = len - iov_iter_count(to);
cifs_stats_bytes_read(tcon, total_read);
@@ -2948,15 +2936,14 @@ error:
rc = 0;
if (total_read) {
- iocb->ki_pos = pos + total_read;
+ iocb->ki_pos += total_read;
return total_read;
}
return rc;
}
ssize_t
-cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos)
+cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to)
{
struct inode *inode = file_inode(iocb->ki_filp);
struct cifsInodeInfo *cinode = CIFS_I(inode);
@@ -2975,22 +2962,22 @@ cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
* pos+len-1.
*/
if (!CIFS_CACHE_READ(cinode))
- return cifs_user_readv(iocb, iov, nr_segs, pos);
+ return cifs_user_readv(iocb, to);
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0))
- return generic_file_aio_read(iocb, iov, nr_segs, pos);
+ return generic_file_read_iter(iocb, to);
/*
* We need to hold the sem to be sure nobody modifies lock list
* with a brlock that prevents reading.
*/
down_read(&cinode->lock_sem);
- if (!cifs_find_lock_conflict(cfile, pos, iov_length(iov, nr_segs),
+ if (!cifs_find_lock_conflict(cfile, iocb->ki_pos, iov_iter_count(to),
tcon->ses->server->vals->shared_lock_type,
NULL, CIFS_READ_OP))
- rc = generic_file_aio_read(iocb, iov, nr_segs, pos);
+ rc = generic_file_read_iter(iocb, to);
up_read(&cinode->lock_sem);
return rc;
}
@@ -3112,7 +3099,7 @@ int cifs_file_strict_mmap(struct file *file, struct vm_area_struct *vma)
xid = get_xid();
if (!CIFS_CACHE_READ(CIFS_I(inode))) {
- rc = cifs_invalidate_mapping(inode);
+ rc = cifs_zap_mapping(inode);
if (rc)
return rc;
}
@@ -3670,7 +3657,7 @@ void cifs_oplock_break(struct work_struct *work)
if (!CIFS_CACHE_READ(cinode)) {
rc = filemap_fdatawait(inode->i_mapping);
mapping_set_error(inode->i_mapping, rc);
- cifs_invalidate_mapping(inode);
+ cifs_zap_mapping(inode);
}
cifs_dbg(FYI, "Oplock flush inode %p rc %d\n", inode, rc);
}
@@ -3703,8 +3690,8 @@ void cifs_oplock_break(struct work_struct *work)
* Direct IO is not yet supported in the cached mode.
*/
static ssize_t
-cifs_direct_io(int rw, struct kiocb *iocb, const struct iovec *iov,
- loff_t pos, unsigned long nr_segs)
+cifs_direct_io(int rw, struct kiocb *iocb, struct iov_iter *iter,
+ loff_t pos)
{
/*
* FIXME
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index a22d667f106..a174605f6af 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -22,6 +22,7 @@
#include <linux/stat.h>
#include <linux/slab.h>
#include <linux/pagemap.h>
+#include <linux/freezer.h>
#include <asm/div64.h>
#include "cifsfs.h"
#include "cifspdu.h"
@@ -117,7 +118,7 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr)
cifs_dbg(FYI, "%s: invalidating inode %llu mapping\n",
__func__, cifs_i->uniqueid);
- cifs_i->invalid_mapping = true;
+ set_bit(CIFS_INO_INVALID_MAPPING, &cifs_i->flags);
}
/*
@@ -177,7 +178,10 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
else
cifs_i->time = jiffies;
- cifs_i->delete_pending = fattr->cf_flags & CIFS_FATTR_DELETE_PENDING;
+ if (fattr->cf_flags & CIFS_FATTR_DELETE_PENDING)
+ set_bit(CIFS_INO_DELETE_PENDING, &cifs_i->flags);
+ else
+ clear_bit(CIFS_INO_DELETE_PENDING, &cifs_i->flags);
cifs_i->server_eof = fattr->cf_eof;
/*
@@ -1121,7 +1125,7 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry,
}
/* try to set DELETE_ON_CLOSE */
- if (!cifsInode->delete_pending) {
+ if (!test_bit(CIFS_INO_DELETE_PENDING, &cifsInode->flags)) {
rc = CIFSSMBSetFileDisposition(xid, tcon, true, fid.netfid,
current->tgid);
/*
@@ -1138,7 +1142,7 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry,
rc = -EBUSY;
goto undo_rename;
}
- cifsInode->delete_pending = true;
+ set_bit(CIFS_INO_DELETE_PENDING, &cifsInode->flags);
}
out_close:
@@ -1759,23 +1763,62 @@ int
cifs_invalidate_mapping(struct inode *inode)
{
int rc = 0;
- struct cifsInodeInfo *cifs_i = CIFS_I(inode);
-
- cifs_i->invalid_mapping = false;
if (inode->i_mapping && inode->i_mapping->nrpages != 0) {
rc = invalidate_inode_pages2(inode->i_mapping);
- if (rc) {
+ if (rc)
cifs_dbg(VFS, "%s: could not invalidate inode %p\n",
__func__, inode);
- cifs_i->invalid_mapping = true;
- }
}
cifs_fscache_reset_inode_cookie(inode);
return rc;
}
+/**
+ * cifs_wait_bit_killable - helper for functions that are sleeping on bit locks
+ * @word: long word containing the bit lock
+ */
+static int
+cifs_wait_bit_killable(void *word)
+{
+ if (fatal_signal_pending(current))
+ return -ERESTARTSYS;
+ freezable_schedule_unsafe();
+ return 0;
+}
+
+int
+cifs_revalidate_mapping(struct inode *inode)
+{
+ int rc;
+ unsigned long *flags = &CIFS_I(inode)->flags;
+
+ rc = wait_on_bit_lock(flags, CIFS_INO_LOCK, cifs_wait_bit_killable,
+ TASK_KILLABLE);
+ if (rc)
+ return rc;
+
+ if (test_and_clear_bit(CIFS_INO_INVALID_MAPPING, flags)) {
+ rc = cifs_invalidate_mapping(inode);
+ if (rc)
+ set_bit(CIFS_INO_INVALID_MAPPING, flags);
+ }
+
+ clear_bit_unlock(CIFS_INO_LOCK, flags);
+ smp_mb__after_atomic();
+ wake_up_bit(flags, CIFS_INO_LOCK);
+
+ return rc;
+}
+
+int
+cifs_zap_mapping(struct inode *inode)
+{
+ set_bit(CIFS_INO_INVALID_MAPPING, &CIFS_I(inode)->flags);
+ return cifs_revalidate_mapping(inode);
+}
+
int cifs_revalidate_file_attr(struct file *filp)
{
int rc = 0;
@@ -1842,9 +1885,7 @@ int cifs_revalidate_file(struct file *filp)
if (rc)
return rc;
- if (CIFS_I(inode)->invalid_mapping)
- rc = cifs_invalidate_mapping(inode);
- return rc;
+ return cifs_revalidate_mapping(inode);
}
/* revalidate a dentry's inode attributes */
@@ -1857,9 +1898,7 @@ int cifs_revalidate_dentry(struct dentry *dentry)
if (rc)
return rc;
- if (CIFS_I(inode)->invalid_mapping)
- rc = cifs_invalidate_mapping(inode);
- return rc;
+ return cifs_revalidate_mapping(inode);
}
int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 77492301cc2..45cb59bcc79 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -85,7 +85,7 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
goto out_fput;
}
- src_inode = src_file.file->f_dentry->d_inode;
+ src_inode = file_inode(src_file.file);
/*
* Note: cifs case is easier than btrfs since server responsible for
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 049884552e7..6834b9c3bec 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -795,8 +795,8 @@ cifs_print_status(__u32 status_code)
while (nt_errs[idx].nt_errstr != NULL) {
if (((nt_errs[idx].nt_errcode) & 0xFFFFFF) ==
(status_code & 0xFFFFFF)) {
- printk(KERN_NOTICE "Status code returned 0x%08x %s\n",
- status_code, nt_errs[idx].nt_errstr);
+ pr_notice("Status code returned 0x%08x %s\n",
+ status_code, nt_errs[idx].nt_errstr);
}
idx++;
}
@@ -941,8 +941,9 @@ cifs_UnixTimeToNT(struct timespec t)
return (u64) t.tv_sec * 10000000 + t.tv_nsec/100 + NTFS_TIME_OFFSET;
}
-static int total_days_of_prev_months[] =
-{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
+static const int total_days_of_prev_months[] = {
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
+};
struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time, int offset)
{
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 35ddc3ed119..787844bde38 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1047,6 +1047,7 @@ smb2_create_lease_buf(u8 *lease_key, u8 oplock)
buf->ccontext.NameOffset = cpu_to_le16(offsetof
(struct create_lease, Name));
buf->ccontext.NameLength = cpu_to_le16(4);
+ /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
buf->Name[0] = 'R';
buf->Name[1] = 'q';
buf->Name[2] = 'L';
@@ -1073,6 +1074,7 @@ smb3_create_lease_buf(u8 *lease_key, u8 oplock)
buf->ccontext.NameOffset = cpu_to_le16(offsetof
(struct create_lease_v2, Name));
buf->ccontext.NameLength = cpu_to_le16(4);
+ /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */
buf->Name[0] = 'R';
buf->Name[1] = 'q';
buf->Name[2] = 'L';
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 3802f8c94ac..b0b260dbb19 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -375,7 +375,12 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
req->Capabilities = cpu_to_le32(ses->server->vals->req_capabilities);
- memcpy(req->ClientGUID, cifs_client_guid, SMB2_CLIENT_GUID_SIZE);
+ /* ClientGUID must be zero for SMB2.02 dialect */
+ if (ses->server->vals->protocol_id == SMB20_PROT_ID)
+ memset(req->ClientGUID, 0, SMB2_CLIENT_GUID_SIZE);
+ else
+ memcpy(req->ClientGUID, server->client_guid,
+ SMB2_CLIENT_GUID_SIZE);
iov[0].iov_base = (char *)req;
/* 4 for rfc1002 length field */
@@ -478,7 +483,8 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
vneg_inbuf.Capabilities =
cpu_to_le32(tcon->ses->server->vals->req_capabilities);
- memcpy(vneg_inbuf.Guid, cifs_client_guid, SMB2_CLIENT_GUID_SIZE);
+ memcpy(vneg_inbuf.Guid, tcon->ses->server->client_guid,
+ SMB2_CLIENT_GUID_SIZE);
if (tcon->ses->sign)
vneg_inbuf.SecurityMode =
@@ -966,6 +972,7 @@ create_durable_buf(void)
buf->ccontext.NameOffset = cpu_to_le16(offsetof
(struct create_durable, Name));
buf->ccontext.NameLength = cpu_to_le16(4);
+ /* SMB2_CREATE_DURABLE_HANDLE_REQUEST is "DHnQ" */
buf->Name[0] = 'D';
buf->Name[1] = 'H';
buf->Name[2] = 'n';
@@ -990,6 +997,7 @@ create_reconnect_durable_buf(struct cifs_fid *fid)
buf->ccontext.NameLength = cpu_to_le16(4);
buf->Data.Fid.PersistentFileId = fid->persistent_fid;
buf->Data.Fid.VolatileFileId = fid->volatile_fid;
+ /* SMB2_CREATE_DURABLE_HANDLE_RECONNECT is "DHnC" */
buf->Name[0] = 'D';
buf->Name[1] = 'H';
buf->Name[2] = 'n';
@@ -1089,6 +1097,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
int rc = 0;
unsigned int num_iovecs = 2;
__u32 file_attributes = 0;
+ char *dhc_buf = NULL, *lc_buf = NULL;
cifs_dbg(FYI, "create/open\n");
@@ -1155,6 +1164,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
kfree(copy_path);
return rc;
}
+ lc_buf = iov[num_iovecs-1].iov_base;
}
if (*oplock == SMB2_OPLOCK_LEVEL_BATCH) {
@@ -1169,9 +1179,10 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
if (rc) {
cifs_small_buf_release(req);
kfree(copy_path);
- kfree(iov[num_iovecs-1].iov_base);
+ kfree(lc_buf);
return rc;
}
+ dhc_buf = iov[num_iovecs-1].iov_base;
}
rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0);
@@ -1203,6 +1214,8 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
*oplock = rsp->OplockLevel;
creat_exit:
kfree(copy_path);
+ kfree(lc_buf);
+ kfree(dhc_buf);
free_rsp_buf(resp_buftype, rsp);
return rc;
}
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 2022c542ea3..69f3595d395 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -183,8 +183,6 @@ struct smb2_symlink_err_rsp {
#define SMB2_CLIENT_GUID_SIZE 16
-extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
-
struct smb2_negotiate_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 36 */
@@ -437,11 +435,15 @@ struct smb2_tree_disconnect_rsp {
#define SMB2_CREATE_SD_BUFFER "SecD" /* security descriptor */
#define SMB2_CREATE_DURABLE_HANDLE_REQUEST "DHnQ"
#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT "DHnC"
-#define SMB2_CREATE_ALLOCATION_SIZE "AlSi"
+#define SMB2_CREATE_ALLOCATION_SIZE "AISi"
#define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
#define SMB2_CREATE_TIMEWARP_REQUEST "TWrp"
#define SMB2_CREATE_QUERY_ON_DISK_ID "QFid"
#define SMB2_CREATE_REQUEST_LEASE "RqLs"
+#define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2 "DH2Q"
+#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 "DH2C"
+#define SMB2_CREATE_APP_INSTANCE_ID 0x45BCA66AEFA7F74A9008FA462E144D74
+#define SVHDX_OPEN_DEVICE_CONTEXT 0x83CE6F1AD851E0986E34401CC9BCFCE9
struct smb2_create_req {
struct smb2_hdr hdr;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 19:03:45 +0000