From: Chao Yu <chao2.yu@samsung.com>
Date: Tue, 29 Oct 2013 06:17:05 +0000 (+0800)
Subject: f2fs: fix calculating incorrect free size when update xattr in __f2fs_setxattr
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=cc3de6a3acce264f4eb0b5bf552478e5f1380bba;p=openwrt%2Fstaging%2Fblogic.git

f2fs: fix calculating incorrect free size when update xattr in __f2fs_setxattr

During xattr updating, free size should be corrected to remainder free size
+ old entry size.
It can avoid ENOSPC error when we update old entry with the same size new
entry at fully filled xattr.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---

diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 89d506d0b35d..aa7a3f139fe5 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -520,7 +520,7 @@ static int __f2fs_setxattr(struct inode *inode, int name_index,
 		 */
 		free = MIN_OFFSET(inode) - ((char *)last - (char *)base_addr);
 		if (found)
-			free = free - ENTRY_SIZE(here);
+			free = free + ENTRY_SIZE(here);
 
 		if (free < newsize) {
 			error = -ENOSPC;