From 8ea8bdf2159df202063eae8f249d925d972afab0 Mon Sep 17 00:00:00 2001
From: tappro <tappro>
Date: Sun, 16 Jul 2006 12:51:52 +0000
Subject: [PATCH] update handle_last_unlink()

---
 lustre/mdt/mdt_lib.c | 75 ++++++++++++++++++++++++++++------------------------
 1 file changed, 40 insertions(+), 35 deletions(-)

diff --git a/lustre/mdt/mdt_lib.c b/lustre/mdt/mdt_lib.c
index 6a9677e..49b40d3 100644
--- a/lustre/mdt/mdt_lib.c
+++ b/lustre/mdt/mdt_lib.c
@@ -44,47 +44,52 @@
 int mdt_handle_last_unlink(struct mdt_thread_info *info,
                            struct mdt_object *mo, const struct req_format *fmt)
 {
+        struct mdt_body *body;
         int rc = 0;
         ENTRY;
-        /* only for reg files and if that object will be deleted */
-        if (lu_object_is_dying(&mo->mot_header)) {
-                rc = mo_attr_get(info->mti_ctxt, mdt_object_child(mo),
-                                 &info->mti_attr);
-                if (rc == 0 && S_ISREG(info->mti_attr.la_mode)) {
-                        struct mdt_body    *body;
-                        struct lov_mds_md  *lmm;
-
-                        /* reply should contains more data,
-                         * so we need to extend it */
-                        req_capsule_extend(&info->mti_pill, fmt);
-
-                        body = req_capsule_server_get(&info->mti_pill,
-                                                      &RMF_MDT_BODY);
-                        lmm = req_capsule_server_get(&info->mti_pill,
-                                                     &RMF_MDT_MD);
-
-                        mdt_pack_attr2body(body, &info->mti_attr, 
-                                           mdt_object_fid(mo));
-
-/*TODO: lmm data & llog cookie
-                        rc = mo_xattr_get(info->mti_ctxt, mdt_object_child(o),
-                                          lmm, info->mti_mdt->mdt_max_mdsize, 
-                                          XATTR_NAME_LOV);
-                        if (rc >= 0) {
-                                if (S_ISDIR(info->mti_attr.la_mode))
-                                        body->valid |= OBD_MD_FLDIREA;
-                                else
-                                        body->valid |= OBD_MD_FLEASIZE;
-                                body->eadatasize = rc;
-                                rc = 0;
-                        }
-*/
-                }
+ 
+        rc = mo_attr_get(info->mti_ctxt, mdt_object_child(mo),
+                         &info->mti_attr);
+        if (rc)
+                RETURN(rc);
+
+        body = req_capsule_server_get(&info->mti_pill,
+                                      &RMF_MDT_BODY);
+        mdt_pack_attr2body(body, &info->mti_attr, mdt_object_fid(mo));
+        
+        /* if last unlinked object reference so client should destroy ost
+         * objects*/
+        if (S_ISREG(info->mti_attr.la_mode) &&
+            info->mti_attr.la_nlink == 0 && mo->mot_header.loh_ref == 1) {
+                struct lov_mds_md  *lmm;
+                
+                CERROR("Last object!\n");
+                /* reply should contains more data,
+                 * * so we need to extend it */
+                req_capsule_extend(&info->mti_pill, fmt);
+                
+                lmm = req_capsule_server_get(&info->mti_pill,
+                                &RMF_MDT_MD);
+                
+                
+                /*TODO: lmm data & llog cookie
+                 * rc = mo_xattr_get(info->mti_ctxt, mdt_object_child(o),
+                 * lmm, info->mti_mdt->mdt_max_mdsize, 
+                 * XATTR_NAME_LOV);
+                 * if (rc >= 0) {
+                 * if (S_ISDIR(info->mti_attr.la_mode))
+                 * body->valid |= OBD_MD_FLDIREA;
+                 * else
+                 * body->valid |= OBD_MD_FLEASIZE;
+                 * body->eadatasize = rc;
+                 * rc = 0;
+                 * }
+                 */
         }
+
         RETURN(rc);
 }
 
-
 /* unpacking */
 static int mdt_setattr_unpack(struct mdt_thread_info *info)
 {
-- 
1.8.3.1