btrfs: drop the nossd flag when remounting with -o ssd

The opposite case was already handled right in the very next switch entry.
And also when turning on nossd, drop ssd_spread.

Reported-by: Hans van Kranenburg <hans.van.kranenburg@mendix.com>
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index da687dc..9530a33 100644 (file)
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -549,16 +549,19 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
                case Opt_ssd:
                        btrfs_set_and_info(info, SSD,
                                           "use ssd allocation scheme");
+                       btrfs_clear_opt(info->mount_opt, NOSSD);
                        break;
                case Opt_ssd_spread:
                        btrfs_set_and_info(info, SSD_SPREAD,
                                           "use spread ssd allocation scheme");
                        btrfs_set_opt(info->mount_opt, SSD);
+                       btrfs_clear_opt(info->mount_opt, NOSSD);
                        break;
                case Opt_nossd:
                        btrfs_set_and_info(info, NOSSD,
                                             "not using ssd allocation scheme");
                        btrfs_clear_opt(info->mount_opt, SSD);
+                       btrfs_clear_opt(info->mount_opt, SSD_SPREAD);
                        break;
                case Opt_barrier:
                        btrfs_clear_and_info(info, NOBARRIER,