LU-8900 snapshot: simulate readonly device

[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_scrub.c

diff --git a/lustre/osd-ldiskfs/osd_scrub.c b/lustre/osd-ldiskfs/osd_scrub.c
index 0302222..51f2bb0 100644 (file)
--- a/lustre/osd-ldiskfs/osd_scrub.c
+++ b/lustre/osd-ldiskfs/osd_scrub.c
@@ -2572,6 +2572,9 @@ static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
        int                   rc;
        ENTRY;
 
+       if (dev->od_dt_dev.dd_rdonly)
+               RETURN(-EROFS);
+
        /* os_lock: sync status between stop and scrub thread */
        spin_lock(&scrub->os_lock);
 
@@ -2819,7 +2822,7 @@ int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
                 * later if found that the system is upgrading. */
                dev->od_igif_inoi = 1;
 
-       if (!dev->od_noscrub &&
+       if (!dev->od_dt_dev.dd_rdonly && !dev->od_noscrub &&
            ((sf->sf_status == SS_PAUSED) ||
             (sf->sf_status == SS_CRASHED &&
              sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |