From: Chao Yu <yuchao0@huawei.com>
Date: Tue, 12 Sep 2017 06:25:35 +0000 (+0800)
Subject: f2fs: fix to show correct discard_granularity in sysfs
X-Git-Tag: v4.14-rc1~46^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=80647e5f4c728ecea7d9190c6e7163755ff6835c;p=platform%2Fkernel%2Flinux-exynos.git

f2fs: fix to show correct discard_granularity in sysfs

Fix below incorrect display when reading discard_granularity sysfs node.

$ cat /sys/fs/f2fs/<device>/discard_granularity
$ 16
$ echo 32 > /sys/fs/f2fs/<device>/discard_granularity
$ cat /sys/fs/f2fs/<device>/discard_granularity
$ 16

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

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 962735d..e2c258f 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -170,6 +170,8 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
 				dcc->pend_list_tag[i] &= (~P_ACTIVE);
 		}
 		mutex_unlock(&dcc->cmd_lock);
+
+		*ui = t;
 		return count;
 	}