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Commit c1ef3725 authored by Gu Zheng's avatar Gu Zheng Committed by Jaegeuk Kim
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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: default avatarGu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent 4531929e

fs/f2fs/checkpoint.c

+9 −6
Original line number Diff line number Diff line
@@ -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);

}