author: Al Viro <viro@zeniv.linux.org.uk> 2010-03-23 06:06:58 -0400
committer: Al Viro <viro@zeniv.linux.org.uk> 2010-05-21 18:31:16 -0400
commit: 01a05b337a5b647909e1d6670f57e7202318a5fb
parent: 35cf7ba0b46dc3582a01c3860b14bff122662aa3
Commit Summary:
Diffstat:
1 file changed, 6 insertions, 16 deletions
diff --git a/fs/sync.c b/fs/sync.c
index f3f0a0e1948f..d5369203f8e4 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -77,31 +77,18 @@ int sync_filesystem(struct super_block *sb)
}
EXPORT_SYMBOL_GPL(sync_filesystem);
+static void sync_one_sb(struct super_block *sb, void *arg)
+{
+ if (!(sb->s_flags & MS_RDONLY) && sb->s_bdi)
+ __sync_filesystem(sb, *(int *)arg);
+}
/*
* Sync all the data for all the filesystems (called by sys_sync() and
* emergency sync)
*/
static void sync_filesystems(int wait)
{
- struct super_block *sb, *n;
-
- spin_lock(&sb_lock);
- list_for_each_entry_safe(sb, n, &super_blocks, s_list) {
- if (list_empty(&sb->s_instances))
- continue;
- sb->s_count++;
- spin_unlock(&sb_lock);
-
- down_read(&sb->s_umount);
- if (!(sb->s_flags & MS_RDONLY) && sb->s_root && sb->s_bdi)
- __sync_filesystem(sb, wait);
- up_read(&sb->s_umount);
-
- /* restart only when sb is no longer on the list */
- spin_lock(&sb_lock);
- __put_super(sb);
- }
- spin_unlock(&sb_lock);
+ iterate_supers(sync_one_sb, &wait);
}
/*