Signed-off-by: Andrey Ryabinin <aryabi...@virtuozzo.com>
---
fs/sync.c | 92 ---------------------------------------------------------------
1 file changed, 92 deletions(-)
diff --git a/fs/sync.c b/fs/sync.c
index 7ac77bb..cb2c7c2 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -99,98 +99,6 @@ static void fdatawait_one_bdev(struct block_device *bdev,
void *arg)
filemap_fdatawait(bdev->bd_inode->i_mapping);
}
-#if 0
-
-struct sync_sb {
- struct list_head list;
- struct super_block *sb;
-};
-
-static void sync_release_filesystems(struct list_head *sync_list)
-{
- struct sync_sb *ss, *tmp;
-
- list_for_each_entry_safe(ss, tmp, sync_list, list) {
- list_del(&ss->list);
- put_super(ss->sb);
- kfree(ss);
- }
-}
-
-static int sync_filesystem_collected(struct list_head *sync_list, struct
super_block *sb)
-{
- struct sync_sb *ss;
-
- list_for_each_entry(ss, sync_list, list)
- if (ss->sb == sb)
- return 1;
- return 0;
-}
-
-static int sync_collect_filesystems(struct ve_struct *ve, struct list_head
*sync_list)
-{
- struct vfsmount *root = ve->root_path.mnt;
- struct vfsmount *mnt;
- struct sync_sb *ss;
- int ret = 0;
-
- BUG_ON(!list_empty(sync_list));
-
- down_read(&namespace_sem);
- for (mnt = root; mnt; mnt = next_mnt(mnt, root)) {
- if (sync_filesystem_collected(sync_list, mnt->mnt_sb))
- continue;
-
- ss = kmalloc(sizeof(*ss), GFP_KERNEL);
- if (ss == NULL) {
- ret = -ENOMEM;
- break;
- }
- ss->sb = mnt->mnt_sb;
- /*
- * We hold mount point and thus can be sure, that superblock is
- * alive. And it means, that we can safely increase it's usage
- * counter.
- */
- spin_lock(&sb_lock);
- ss->sb->s_count++;
- spin_unlock(&sb_lock);
- list_add_tail(&ss->list, sync_list);
- }
- up_read(&namespace_sem);
- return ret;
-}
-
-static void sync_filesystems_ve(struct ve_struct *ve, struct user_beancounter
*ub, int wait)
-{
- struct super_block *sb;
- LIST_HEAD(sync_list);
- struct sync_sb *ss;
-
- mutex_lock(&ve->sync_mutex); /* Could be down_interruptible
*/
-
- /*
- * We don't need to care about allocating failure here. At least we
- * don't need to skip sync on such error.
- * Let's sync what we collected already instead.
- */
- sync_collect_filesystems(ve, &sync_list);
-
- list_for_each_entry(ss, &sync_list, list) {
- sb = ss->sb;
- down_read(&sb->s_umount);
- if (!(sb->s_flags & MS_RDONLY) && sb->s_root && sb->s_bdi)
- __sync_filesystem(sb, ub, wait);
- up_read(&sb->s_umount);
- }
-
- sync_release_filesystems(&sync_list);
-
- mutex_unlock(&ve->sync_mutex);
-}
-
-#endif
-
static int __ve_fsync_behavior(struct ve_struct *ve)
{
if (ve->fsync_enable == 2)
--
2.4.10
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