LU-8900 snapshot: simulate readonly device

[fs/lustre-release.git] / lustre / osp / osp_dev.c

diff --git a/lustre/osp/osp_dev.c b/lustre/osp/osp_dev.c
index 138bb43..bb8b4b1 100644 (file)
--- a/lustre/osp/osp_dev.c
+++ b/lustre/osp/osp_dev.c
@@ -211,6 +211,9 @@ static int osp_write_local_file(const struct lu_env *env,
        struct thandle *th;
        int rc;
 
+       if (osp->opd_storage->dd_rdonly)
+               RETURN(0);
+
        th = dt_trans_create(env, osp->opd_storage);
        if (IS_ERR(th))
                RETURN(PTR_ERR(th));
@@ -500,6 +503,9 @@ static int osp_update_init(struct osp_device *osp)
 
        LASSERT(osp->opd_connect_mdt);
 
+       if (osp->opd_storage->dd_rdonly)
+               RETURN(0);
+
        OBD_ALLOC_PTR(osp->opd_update);
        if (osp->opd_update == NULL)
                RETURN(-ENOMEM);
@@ -1163,10 +1169,11 @@ static int osp_init0(const struct lu_env *env, struct osp_device *osp,
        if (!osp->opd_connect_mdt) {
                /* Initialize last id from the storage - will be
                 * used in orphan cleanup. */
-               rc = osp_last_used_init(env, osp);
-               if (rc)
-                       GOTO(out_fid, rc);
-
+               if (!osp->opd_storage->dd_rdonly) {
+                       rc = osp_last_used_init(env, osp);
+                       if (rc)
+                               GOTO(out_fid, rc);
+               }
 
                /* Initialize precreation thread, it handles new
                 * connections as well. */