f2fs: code cleanup and simplify in func {find/add}_gc_inode

This patch simplifies list operations in find_gc_inode and add_gc_inode.
Just simple code cleanup.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
[Jaegeuk Kim: add description]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 3a9df36..35f9b1a 100644 (file)
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -321,28 +321,21 @@ static const struct victim_selection default_v_ops = {
 
 static struct inode *find_gc_inode(nid_t ino, struct list_head *ilist)
 {
-       struct list_head *this;
        struct inode_entry *ie;
 
-       list_for_each(this, ilist) {
-               ie = list_entry(this, struct inode_entry, list);
+       list_for_each_entry(ie, ilist, list)
                if (ie->inode->i_ino == ino)
                        return ie->inode;
-       }
        return NULL;
 }
 
 static void add_gc_inode(struct inode *inode, struct list_head *ilist)
 {
-       struct list_head *this;
-       struct inode_entry *new_ie, *ie;
+       struct inode_entry *new_ie;
 
-       list_for_each(this, ilist) {
-               ie = list_entry(this, struct inode_entry, list);
-               if (ie->inode == inode) {
-                       iput(inode);
-                       return;
-               }
+       if (inode == find_gc_inode(inode->i_ino, ilist)) {
+               iput(inode);
+               return;
        }
 repeat:
        new_ie = kmem_cache_alloc(winode_slab, GFP_NOFS);