f2fs: clean up the add_orphan_inode func

For the code
> prev = list_entry(orphan->list.prev, typeof(*prev), list);
if orphan->list.prev == head, it can't get the right prev.
And we can use the parameter 'this' to add.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 4 insertions, 12 deletions

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 9c1627165039..d3b34d05211f 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -219,19 +219,11 @@ retry:
         new->ino = ino;
 
         /* add new_oentry into list which is sorted by inode number */
-        if (orphan) {
-                struct orphan_inode_entry *prev;
-
-                /* get previous entry */
-                prev = list_entry(orphan->list.prev, typeof(*prev), list);
-                if (&prev->list != head)
-                        /* insert new orphan inode entry */
-                        list_add(&new->list, &prev->list);
-                else
-                        list_add(&new->list, head);
-        } else {
+        if (orphan)
+                list_add(&new->list, this->prev);
+        else
                 list_add_tail(&new->list, head);
-        }
+
         sbi->n_orphans++;
 out:
         mutex_unlock(&sbi->orphan_inode_mutex);