LU-8900 snapshot: simulate readonly device

[fs/lustre-release.git] / lustre / mgs / mgs_nids.c

diff --git a/lustre/mgs/mgs_nids.c b/lustre/mgs/mgs_nids.c
index 2d14d2a..3376fb2 100644 (file)
--- a/lustre/mgs/mgs_nids.c
+++ b/lustre/mgs/mgs_nids.c
@@ -220,6 +220,9 @@ static int nidtbl_update_version(const struct lu_env *env,
        int               rc;
         ENTRY;
 
+       if (mgs->mgs_bottom->dd_rdonly)
+               RETURN(0);
+
        LASSERT(mutex_is_locked(&tbl->mn_lock));
 
        fsdb = local_file_find_or_create(env, mgs->mgs_los, mgs->mgs_nidtbl_dir,