1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index fa1b78cf25f6..8a27255173b7 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4438,7 +4438,7 @@ static long btrfs_ioctl_dev_replace(struct btrfs_fs_info *fs_info,
 
         switch (p->cmd) {
         case BTRFS_IOCTL_DEV_REPLACE_CMD_START:
-                if (fs_info->sb->s_flags & MS_RDONLY) {
+                if (sb_rdonly(fs_info->sb)) {
                         ret = -EROFS;
                         goto out;
                 }