From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 21 May 2013 01:17:56 +0000 (+0900)
Subject: f2fs: fix wrong condition check
X-Git-Tag: submit/tizen/20141121.110247~3395
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=14dc1184104279976c6e63583b7dc8e7a3956e04;p=platform%2Fkernel%2Flinux-3.10.git

f2fs: fix wrong condition check

While an orphan inode has zero link_count, f2fs_gc is able to select the inode
for foreground gc.

- f2fs_gc
 - do_garbage_collect
   - gc_data_segment
     : f2fs_iget is failed
     : get_valid_blocks() != 0, so that retry
--> here we got the infinite loop.

This patch resolved this issue.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index a18946e..b44a4c1 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -109,12 +109,6 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
 	ret = do_read_inode(inode);
 	if (ret)
 		goto bad_inode;
-
-	if (!sbi->por_doing && inode->i_nlink == 0) {
-		ret = -ENOENT;
-		goto bad_inode;
-	}
-
 make_now:
 	if (ino == F2FS_NODE_INO(sbi)) {
 		inode->i_mapping->a_ops = &f2fs_node_aops;