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f2fs: move alloc new orphan node out of lock protection region 

Move alloc new orphan node out of lock protection region.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Gu Zheng 2014-01-10 18:09:08 +08:00 committed by Jaegeuk Kim
parent 4531929e39
commit c1ef372572
1 changed files with 9 additions and 6 deletions
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15
fs/f2fs/checkpoint.c
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@ -219,26 +219,29 @@ void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
struct list_head *head, *this;
struct orphan_inode_entry *new = NULL, *orphan = NULL;
new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
new->ino = ino;
mutex_lock(&sbi->orphan_inode_mutex);
head = &sbi->orphan_inode_list;
list_for_each(this, head) {
orphan = list_entry(this, struct orphan_inode_entry, list);
if (orphan->ino == ino)
goto out;
if (orphan->ino == ino) {
mutex_unlock(&sbi->orphan_inode_mutex);
kmem_cache_free(orphan_entry_slab, new);
return;
}
if (orphan->ino > ino)
break;
orphan = NULL;
}
new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
new->ino = ino;
/* add new_oentry into list which is sorted by inode number */
if (orphan)
list_add(&new->list, this->prev);
else
list_add_tail(&new->list, head);
out:
mutex_unlock(&sbi->orphan_inode_mutex);
}