From: Chao Yu <yuchao0@huawei.com>
Date: Sun, 21 Aug 2016 15:21:29 +0000 (+0800)
Subject: f2fs: check return value of write_checkpoint during fstrim
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e932835377f95c91789c8572a5aaaa9daad5d262;p=deliverable%2Flinux.git

f2fs: check return value of write_checkpoint during fstrim

During fstrim, if one of multiple write_checkpoint failed, break off and
return error number to caller.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index a3940129e3b2..020767c67935 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1303,6 +1303,8 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
 		mutex_lock(&sbi->gc_mutex);
 		err = write_checkpoint(sbi, &cpc);
 		mutex_unlock(&sbi->gc_mutex);
+		if (err)
+			break;
 	}
 out:
 	range->len = F2FS_BLK_TO_BYTES(cpc.trimmed);