LU-12516 mdd: support for volatile creation in .lustre

[fs/lustre-release.git] / lustre / mdt / mdt_open.c

diff --git a/lustre/mdt/mdt_open.c b/lustre/mdt/mdt_open.c
index eb43f79..b7c5691 100644 (file)
--- a/lustre/mdt/mdt_open.c
+++ b/lustre/mdt/mdt_open.c
@@ -1408,8 +1408,10 @@ again:
 
        fid_zero(child_fid);
 
-       result = mdo_lookup(info->mti_env, mdt_object_child(parent),
-                           &rr->rr_name, child_fid, &info->mti_spec);
+       result = -ENOENT;
+       if ((open_flags & MDS_OPEN_VOLATILE) == 0)
+               result = mdo_lookup(info->mti_env, mdt_object_child(parent),
+                                   &rr->rr_name, child_fid, &info->mti_spec);
 
        LASSERTF(ergo(result == 0, fid_is_sane(child_fid)),
                 "looking for "DFID"/"DNAME", found FID = "DFID"\n",
@@ -1487,7 +1489,8 @@ again:
 
        if (result == -ENOENT) {
                /* Create under OBF and .lustre is not permitted */
-               if (!fid_is_md_operative(rr->rr_fid1))
+               if (!fid_is_md_operative(rr->rr_fid1) &&
+                   (open_flags & MDS_OPEN_VOLATILE) == 0)
                        GOTO(out_child, result = -EPERM);
 
                /* save versions in reply */