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f2fs: fix to show correct discard_granularity in sysfs

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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>
This commit is contained in:
Chao Yu 2017-09-12 14:25:35 +08:00 committed by Jaegeuk Kim
parent ca7d802a7d
commit 80647e5f4c
1 changed files with 2 additions and 0 deletions
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2
fs/f2fs/sysfs.c
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@ -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;
}