f2fs: fix to clean previous mount option when remount_fs
In manual of mount, we descript remount as below:
"mount -o remount,rw /dev/foo /dir
After this call all old mount options are replaced and arbitrary stuff from
fstab is ignored, except the loop= option which is internally generated and
maintained by the mount command."
Previously f2fs do not clear up old mount options when remount_fs, so we have no
chance of disabling previous option (e.g. flush_merge). Fix it.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 3dfa1b5..7a91a38 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -618,6 +618,9 @@
org_mount_opt = sbi->mount_opt;
active_logs = sbi->active_logs;
+ sbi->mount_opt.opt = 0;
+ sbi->active_logs = NR_CURSEG_TYPE;
+
/* parse mount options */
err = parse_options(sb, data);
if (err)