LU-11376 lmv: new foreign LMV format

[fs/lustre-release.git] / lustre / lmv / lmv_intent.c

diff --git a/lustre/lmv/lmv_intent.c b/lustre/lmv/lmv_intent.c
index 7cac3dc..bb94c26 100644 (file)
--- a/lustre/lmv/lmv_intent.c
+++ b/lustre/lmv/lmv_intent.c
@@ -276,6 +276,11 @@ static int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
 
        ENTRY;
 
+       /* do not allow file creation in foreign dir */
+       if ((it->it_op & IT_CREAT) && op_data->op_mea1 != NULL &&
+           op_data->op_mea1->lsm_md_magic == LMV_MAGIC_FOREIGN)
+               RETURN(-ENODATA);
+
        if ((it->it_op & IT_CREAT) && !(flags & MDS_OPEN_BY_FID)) {
                /* don't allow create under dir with bad hash */
                if (lmv_is_dir_bad_hash(op_data->op_mea1))
@@ -422,6 +427,15 @@ lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data,
        int rc;
        ENTRY;
 
+       /* foreign dir is not striped */
+       if (op_data->op_mea1 &&
+           op_data->op_mea1->lsm_md_magic == LMV_MAGIC_FOREIGN) {
+               /* only allow getattr/lookup for itself */
+               if (op_data->op_name != NULL)
+                       RETURN(-ENODATA);
+               RETURN(0);
+       }
+
 retry:
        tgt = lmv_locate_tgt(lmv, op_data, &op_data->op_fid1);
        if (IS_ERR(tgt))