f2fs: stop issuing discard if fs is readonly

If filesystem is readonly, stop to issue discard in daemon.

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 9c09e2c..ca1f567 100644 (file)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1406,6 +1406,8 @@ static int issue_discard_thread(void *data)
                                msecs_to_jiffies(wait_ms));
                if (try_to_freeze())
                        continue;
+               if (f2fs_readonly(sbi->sb))
+                       continue;
                if (kthread_should_stop())
                        return 0;