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-rw-r--r--fs/ocfs2/cluster/heartbeat.c2
-rw-r--r--fs/ocfs2/super.c24
-rw-r--r--fs/ocfs2/symlink.c77
3 files changed, 47 insertions, 56 deletions
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 4f85eceab37..09cc25d0461 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1371,7 +1371,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
bdevname(reg->hr_bdev, reg->hr_dev_name);
- sectsize = bdev_hardsect_size(reg->hr_bdev);
+ sectsize = bdev_logical_block_size(reg->hr_bdev);
if (sectsize != reg->hr_block_bytes) {
mlog(ML_ERROR,
"blocksize %u incorrect for device, expected %d",
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 4e6b8e7c423..d33767f17ba 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -42,6 +42,7 @@
#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/quotaops.h>
+#include <linux/smp_lock.h>
#define MLOG_MASK_PREFIX ML_SUPER
#include <cluster/masklog.h>
@@ -128,7 +129,6 @@ static int ocfs2_get_sector(struct super_block *sb,
struct buffer_head **bh,
int block,
int sect_size);
-static void ocfs2_write_super(struct super_block *sb);
static struct inode *ocfs2_alloc_inode(struct super_block *sb);
static void ocfs2_destroy_inode(struct inode *inode);
static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend);
@@ -143,7 +143,6 @@ static const struct super_operations ocfs2_sops = {
.clear_inode = ocfs2_clear_inode,
.delete_inode = ocfs2_delete_inode,
.sync_fs = ocfs2_sync_fs,
- .write_super = ocfs2_write_super,
.put_super = ocfs2_put_super,
.remount_fs = ocfs2_remount,
.show_options = ocfs2_show_options,
@@ -375,24 +374,12 @@ static struct file_operations ocfs2_osb_debug_fops = {
.llseek = generic_file_llseek,
};
-/*
- * write_super and sync_fs ripped right out of ext3.
- */
-static void ocfs2_write_super(struct super_block *sb)
-{
- if (mutex_trylock(&sb->s_lock) != 0)
- BUG();
- sb->s_dirt = 0;
-}
-
static int ocfs2_sync_fs(struct super_block *sb, int wait)
{
int status;
tid_t target;
struct ocfs2_super *osb = OCFS2_SB(sb);
- sb->s_dirt = 0;
-
if (ocfs2_is_hard_readonly(osb))
return -EROFS;
@@ -605,6 +592,8 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
struct mount_options parsed_options;
struct ocfs2_super *osb = OCFS2_SB(sb);
+ lock_kernel();
+
if (!ocfs2_parse_options(sb, data, &parsed_options, 1)) {
ret = -EINVAL;
goto out;
@@ -708,6 +697,7 @@ unlock_osb:
ocfs2_set_journal_params(osb);
}
out:
+ unlock_kernel();
return ret;
}
@@ -724,7 +714,7 @@ static int ocfs2_sb_probe(struct super_block *sb,
*bh = NULL;
/* may be > 512 */
- *sector_size = bdev_hardsect_size(sb->s_bdev);
+ *sector_size = bdev_logical_block_size(sb->s_bdev);
if (*sector_size > OCFS2_MAX_BLOCKSIZE) {
mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n",
*sector_size, OCFS2_MAX_BLOCKSIZE);
@@ -1575,9 +1565,13 @@ static void ocfs2_put_super(struct super_block *sb)
{
mlog_entry("(0x%p)\n", sb);
+ lock_kernel();
+
ocfs2_sync_blockdev(sb);
ocfs2_dismount_volume(sb, 0);
+ unlock_kernel();
+
mlog_exit_void();
}
diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c
index ed0a0cfd68d..579dd1b1110 100644
--- a/fs/ocfs2/symlink.c
+++ b/fs/ocfs2/symlink.c
@@ -39,6 +39,7 @@
#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/utsname.h>
+#include <linux/namei.h>
#define MLOG_MASK_PREFIX ML_NAMEI
#include <cluster/masklog.h>
@@ -54,26 +55,6 @@
#include "buffer_head_io.h"
-static char *ocfs2_page_getlink(struct dentry * dentry,
- struct page **ppage);
-static char *ocfs2_fast_symlink_getlink(struct inode *inode,
- struct buffer_head **bh);
-
-/* get the link contents into pagecache */
-static char *ocfs2_page_getlink(struct dentry * dentry,
- struct page **ppage)
-{
- struct page * page;
- struct address_space *mapping = dentry->d_inode->i_mapping;
- page = read_mapping_page(mapping, 0, NULL);
- if (IS_ERR(page))
- goto sync_fail;
- *ppage = page;
- return kmap(page);
-
-sync_fail:
- return (char*)page;
-}
static char *ocfs2_fast_symlink_getlink(struct inode *inode,
struct buffer_head **bh)
@@ -128,40 +109,55 @@ out:
return ret;
}
-static void *ocfs2_follow_link(struct dentry *dentry,
- struct nameidata *nd)
+static void *ocfs2_fast_follow_link(struct dentry *dentry,
+ struct nameidata *nd)
{
- int status;
- char *link;
+ int status = 0;
+ int len;
+ char *target, *link = ERR_PTR(-ENOMEM);
struct inode *inode = dentry->d_inode;
- struct page *page = NULL;
struct buffer_head *bh = NULL;
-
- if (ocfs2_inode_is_fast_symlink(inode))
- link = ocfs2_fast_symlink_getlink(inode, &bh);
- else
- link = ocfs2_page_getlink(dentry, &page);
- if (IS_ERR(link)) {
- status = PTR_ERR(link);
+
+ mlog_entry_void();
+
+ BUG_ON(!ocfs2_inode_is_fast_symlink(inode));
+ target = ocfs2_fast_symlink_getlink(inode, &bh);
+ if (IS_ERR(target)) {
+ status = PTR_ERR(target);
mlog_errno(status);
goto bail;
}
- status = vfs_follow_link(nd, link);
+ /* Fast symlinks can't be large */
+ len = strlen(target);
+ link = kzalloc(len + 1, GFP_NOFS);
+ if (!link) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto bail;
+ }
+
+ memcpy(link, target, len);
+ nd_set_link(nd, link);
bail:
- if (page) {
- kunmap(page);
- page_cache_release(page);
- }
brelse(bh);
- return ERR_PTR(status);
+ mlog_exit(status);
+ return status ? ERR_PTR(status) : link;
+}
+
+static void ocfs2_fast_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
+{
+ char *link = cookie;
+
+ kfree(link);
}
const struct inode_operations ocfs2_symlink_inode_operations = {
.readlink = page_readlink,
- .follow_link = ocfs2_follow_link,
+ .follow_link = page_follow_link_light,
+ .put_link = page_put_link,
.getattr = ocfs2_getattr,
.setattr = ocfs2_setattr,
.setxattr = generic_setxattr,
@@ -171,7 +167,8 @@ const struct inode_operations ocfs2_symlink_inode_operations = {
};
const struct inode_operations ocfs2_fast_symlink_inode_operations = {
.readlink = ocfs2_readlink,
- .follow_link = ocfs2_follow_link,
+ .follow_link = ocfs2_fast_follow_link,
+ .put_link = ocfs2_fast_put_link,
.getattr = ocfs2_getattr,
.setattr = ocfs2_setattr,
.setxattr = generic_setxattr,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-03-08 07:48:58 +0000