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Remove global atomic counter for MDS opens, it just slows things down.
[fs/lustre-release.git] / lustre / mds / mds_open.c
index 6ddd8da..244b593 100644 (file)
 #endif
 #define DEBUG_SUBSYSTEM S_MDS
 
+#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/version.h>
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 # include <linux/buffer_head.h>
 # include <linux/workqueue.h>
@@ -53,7 +55,7 @@
  * mds_mfd_close - for force closing files when a client dies
  */
 
-/* 
+/*
  * MDS file data handling: file data holds a handle for a file opened
  * by a client.
  */
@@ -131,7 +133,7 @@ static void mds_free_filterdata(struct inode *inode)
         iput(inode);
 }
 
-/* Write access to a file: executors cause a negative count, 
+/* Write access to a file: executors cause a negative count,
  * writers a positive count.  The semaphore is needed to perform
  * a check for the sign and then increment or decrement atomically.
  *
@@ -242,7 +244,7 @@ static struct mds_file_data *mds_dentry_open(struct dentry *dentry,
         struct mds_body *body;
         int error;
         ENTRY;
-        
+
         mfd = mds_mfd_new();
         if (mfd == NULL) {
                 CERROR("mds: out of memory\n");
@@ -302,13 +304,15 @@ static void mds_objids_from_lmm(obd_id *ids, struct lov_mds_md *lmm,
 static int mds_create_objects(struct ptlrpc_request *req, int offset,
                               struct mds_update_record *rec,
                               struct mds_obd *mds, struct obd_device *obd,
-                              struct inode *inode, void **handle, obd_id **ids)
+                              struct dentry *dchild, void **handle, 
+                              obd_id **ids)
 {
         struct obdo *oa;
         struct obd_trans_info oti = { 0 };
         struct mds_body *body;
         struct lov_stripe_md *lsm = NULL;
         struct lov_mds_md *lmm = NULL;
+        struct inode *inode = dchild->d_inode;
         void *lmm_buf;
         int rc, lmm_bufsize, lmm_size;
         ENTRY;
@@ -338,7 +342,8 @@ static int mds_create_objects(struct ptlrpc_request *req, int offset,
         }
 
         /* replay case */
-        if (rec->ur_fid2->id) {
+        if(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
+                LASSERT (rec->ur_fid2->id);
                 body->valid |= OBD_MD_FLBLKSZ | OBD_MD_FLEASIZE;
                 lmm_size = rec->ur_eadatalen;
                 lmm = rec->ur_eadata;
@@ -357,43 +362,63 @@ static int mds_create_objects(struct ptlrpc_request *req, int offset,
                 RETURN(0);
         }
 
+        if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_MDS_ALLOC_OBDO))
+                GOTO(out_ids, rc = -ENOMEM);
+
         oa = obdo_alloc();
         if (oa == NULL)
                 GOTO(out_ids, rc = -ENOMEM);
         oa->o_mode = S_IFREG | 0600;
         oa->o_id = inode->i_ino;
+        oa->o_gr = FILTER_GROUP_FIRST_MDS + mds->mds_num;
         oa->o_generation = inode->i_generation;
         oa->o_uid = 0; /* must have 0 uid / gid on OST */
         oa->o_gid = 0;
         oa->o_valid = OBD_MD_FLID | OBD_MD_FLGENER | OBD_MD_FLTYPE |
-                OBD_MD_FLMODE | OBD_MD_FLUID | OBD_MD_FLGID;
+                OBD_MD_FLMODE | OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLGROUP;
         oa->o_size = 0;
 
         obdo_from_inode(oa, inode, OBD_MD_FLTYPE|OBD_MD_FLATIME|OBD_MD_FLMTIME|
                         OBD_MD_FLCTIME);
 
-        /* check if things like lstripe/lfs stripe are sending us the ea */
-        if (rec->ur_flags & MDS_OPEN_HAS_EA) {
-                rc = obd_iocontrol(OBD_IOC_LOV_SETSTRIPE, mds->mds_osc_exp,
+        if (!(rec->ur_flags & MDS_OPEN_HAS_OBJS)) {
+                /* check if things like lfs setstripe are sending us the ea */
+                if (rec->ur_flags & MDS_OPEN_HAS_EA) {
+                        rc = obd_iocontrol(OBD_IOC_LOV_SETSTRIPE,
+                                           mds->mds_osc_exp,
+                                           0, &lsm, rec->ur_eadata);
+                        if (rc)
+                                GOTO(out_oa, rc);
+                } else {
+                        /* Per-directory striping default code removed, because
+                         * it uses the same unnamed EA storage as the directory
+                         * striping for CMD. -p */
+                } 
+                LASSERT(oa->o_gr >= FILTER_GROUP_FIRST_MDS);
+                rc = obd_create(mds->mds_osc_exp, oa, &lsm, &oti);
+                if (rc) {
+                        int level = D_ERROR;
+                        if (rc == -ENOSPC)
+                                level = D_INODE;
+                        CDEBUG(level, "error creating objects for "
+                                      "inode %lu: rc = %d\n",
+                               inode->i_ino, rc);
+                        if (rc > 0) {
+                                CERROR("obd_create returned invalid "
+                                       "rc %d\n", rc);
+                                rc = -EIO;
+                        }
+                        GOTO(out_oa, rc);
+                }
+        } else {
+                rc = obd_iocontrol(OBD_IOC_LOV_SETEA, mds->mds_osc_exp,
                                    0, &lsm, rec->ur_eadata);
-                if (rc)
+                if (rc) {
                         GOTO(out_oa, rc);
-        }
-
-        rc = obd_create(mds->mds_osc_exp, oa, &lsm, &oti);
-        if (rc) {
-                int level = D_ERROR;
-                if (rc == -ENOSPC)
-                        level = D_INODE;
-                CDEBUG(level, "error creating objects for inode %lu: rc = %d\n",
-                       inode->i_ino, rc);
-                if (rc > 0) {
-                        CERROR("obd_create returned invalid rc %d\n", rc);
-                        rc = -EIO;
                 }
-                GOTO(out_oa, rc);
+                lsm->lsm_object_id = oa->o_id;
+                lsm->lsm_object_gr = oa->o_gr;
         }
-
         if (inode->i_size) {
                 oa->o_size = inode->i_size;
                 obdo_from_inode(oa, inode, OBD_MD_FLTYPE|OBD_MD_FLATIME|
@@ -444,7 +469,6 @@ static void reconstruct_open(struct mds_update_record *rec, int offset,
                              struct ptlrpc_request *req,
                              struct lustre_handle *child_lockh)
 {
-        struct ptlrpc_request *oldreq = req->rq_export->exp_outstanding_reply;
         struct mds_export_data *med = &req->rq_export->exp_mds_data;
         struct mds_client_data *mcd = med->med_mcd;
         struct mds_obd *mds = mds_req2mds(req);
@@ -493,8 +517,8 @@ static void reconstruct_open(struct mds_update_record *rec, int offset,
 
         /* get lock (write for O_CREAT, read otherwise) */
 
-        mds_pack_inode2fid(&body->fid1, child->d_inode);
-        mds_pack_inode2body(body, child->d_inode);
+        mds_pack_inode2fid(obd, &body->fid1, child->d_inode);
+        mds_pack_inode2body(obd, body, child->d_inode);
         if (S_ISREG(child->d_inode->i_mode)) {
                 rc = mds_pack_md(obd, req->rq_repmsg, 2, body,
                                  child->d_inode, 1);
@@ -542,10 +566,11 @@ static void reconstruct_open(struct mds_update_record *rec, int offset,
                 mfd = NULL;
         }
 
-        if (oldreq != NULL) {
-                /* if we're not recovering, it had better be found */
-                LASSERT(mfd != NULL);
-        } else if (mfd == NULL) {
+        /* #warning "XXX fixme" bug 2991 */
+        /* Here it used to LASSERT(mfd) if exp_outstanding_reply != NULL.
+         * Now that exp_outstanding_reply is a list, it's just using mfd != NULL
+         * to detect a re-open */
+        if (mfd == NULL) {
                 mntget(mds->mds_vfsmnt);
                 CERROR("Re-opened file \n");
                 mfd = mds_dentry_open(child, mds->mds_vfsmnt,
@@ -555,6 +580,10 @@ static void reconstruct_open(struct mds_update_record *rec, int offset,
                         GOTO(out_dput, req->rq_status = -ENOMEM);
                 }
                 put_child = 0;
+        } else {
+                body->handle.cookie = mfd->mfd_handle.h_cookie;
+                CDEBUG(D_INODE, "resend mfd %p, cookie "LPX64"\n", mfd,
+                       mfd->mfd_handle.h_cookie);
         }
 
  out_dput:
@@ -587,13 +616,15 @@ static int mds_finish_open(struct ptlrpc_request *req, struct dentry *dchild,
         struct obd_device *obd = req->rq_export->exp_obd;
         struct mds_file_data *mfd = NULL;
         obd_id *ids = NULL; /* object IDs created */
-        int rc;
+        unsigned mode;
+        int rc = 0;
         ENTRY;
 
         /* atomically create objects if necessary */
         down(&dchild->d_inode->i_sem);
-        if (S_ISREG(dchild->d_inode->i_mode) &&
-            !(body->valid & OBD_MD_FLEASIZE)) {
+        mode = dchild->d_inode->i_mode;
+        if ((S_ISREG(mode) && !(body->valid & OBD_MD_FLEASIZE)) || 
+            (S_ISDIR(mode) && !(body->valid & OBD_MD_FLDIREA))) {
                 rc = mds_pack_md(obd, req->rq_repmsg, 2, body,
                                  dchild->d_inode, 0);
                 if (rc) {
@@ -604,14 +635,26 @@ static int mds_finish_open(struct ptlrpc_request *req, struct dentry *dchild,
         if (rec != NULL) {
                 /* no EA: create objects */
                 rc = mds_create_objects(req, 2, rec, mds, obd,
-                                        dchild->d_inode, handle, &ids);
+                                        dchild, handle, &ids);
                 if (rc) {
                         CERROR("mds_create_objects: rc = %d\n", rc);
                         up(&dchild->d_inode->i_sem);
                         RETURN(rc);
                 }
+                if (S_ISREG(dchild->d_inode->i_mode) &&
+                    (body->valid & OBD_MD_FLEASIZE)) {
+                        rc = mds_revalidate_lov_ea(obd, dchild->d_inode,
+                                                   req->rq_repmsg, 2);
+                        if (!rc)
+                                rc = mds_pack_md(obd, req->rq_repmsg, 2, body,
+                                                 dchild->d_inode, 0);
+                        if (rc) {
+                                up(&dchild->d_inode->i_sem);
+                                RETURN(rc);
+                        }
+                }
         }
-        /* If the inode has EA data, then OSTs hold size, mtime */
+        /* If the inode has no EA data, then MDSs hold size, mtime */
         if (S_ISREG(dchild->d_inode->i_mode) &&
             !(body->valid & OBD_MD_FLEASIZE)) {
                 body->valid |= (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
@@ -630,8 +673,8 @@ static int mds_finish_open(struct ptlrpc_request *req, struct dentry *dchild,
                 mds_lov_update_objids(obd, ids);
                 OBD_FREE(ids, sizeof(*ids) * mds->mds_lov_desc.ld_tgt_count);
         }
-        if (rc)
-                mds_mfd_destroy(mfd);
+        //if (rc)
+        //        mds_mfd_destroy(mfd);
         RETURN(rc);
 }
 
@@ -660,8 +703,8 @@ static int mds_open_by_fid(struct ptlrpc_request *req, struct ll_fid *fid,
         if (dchild->d_inode != NULL) {
                 up(&pending_dir->i_sem);
                 mds_inode_set_orphan(dchild->d_inode);
-                mds_pack_inode2fid(&body->fid1, dchild->d_inode);
-                mds_pack_inode2body(body, dchild->d_inode);
+                mds_pack_inode2fid(req2obd(req), &body->fid1, dchild->d_inode);
+                mds_pack_inode2body(req2obd(req), body, dchild->d_inode);
                 intent_set_disposition(rep, DISP_LOOKUP_EXECD);
                 intent_set_disposition(rep, DISP_LOOKUP_POS);
                 CWARN("Orphan %s found and opened in PENDING directory\n",
@@ -677,8 +720,8 @@ static int mds_open_by_fid(struct ptlrpc_request *req, struct ll_fid *fid,
         if (IS_ERR(dchild))
                 RETURN(PTR_ERR(dchild));
 
-        mds_pack_inode2fid(&body->fid1, dchild->d_inode);
-        mds_pack_inode2body(body, dchild->d_inode);
+        mds_pack_inode2fid(req2obd(req), &body->fid1, dchild->d_inode);
+        mds_pack_inode2body(req2obd(req), body, dchild->d_inode);
         intent_set_disposition(rep, DISP_LOOKUP_EXECD);
         intent_set_disposition(rep, DISP_LOOKUP_POS);
 
@@ -696,7 +739,7 @@ int mds_pin(struct ptlrpc_request *req)
 {
         struct obd_device *obd = req->rq_export->exp_obd;
         struct mds_body *request_body, *reply_body;
-        struct obd_run_ctxt saved;
+        struct lvfs_run_ctxt saved;
         int rc, size = sizeof(*reply_body);
         ENTRY;
 
@@ -707,10 +750,10 @@ int mds_pin(struct ptlrpc_request *req)
                 RETURN(rc);
         reply_body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*reply_body));
 
-        push_ctxt(&saved, &obd->obd_ctxt, NULL);
+        push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
         rc = mds_open_by_fid(req, &request_body->fid1, reply_body,
                              request_body->flags, NULL, NULL);
-        pop_ctxt(&saved, &obd->obd_ctxt, NULL);
+        pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 
         RETURN(rc);
 }
@@ -721,7 +764,7 @@ int mds_pin(struct ptlrpc_request *req)
 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
                        struct lustre_handle *child_lockh)
 {
-        struct ldlm_res_id child_res_id = { .name = { inode->i_ino } };
+        struct ldlm_res_id child_res_id = { .name = { inode->i_ino, 0, 1, 0 } };
         struct lustre_handle lockh;
         int lock_flags = 0;
         int rc;
@@ -729,16 +772,31 @@ int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
         if (child_lockh == NULL)
                 child_lockh = &lockh;
 
-        rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace, NULL,
-                              child_res_id, LDLM_PLAIN, NULL, 0,
-                              LCK_EX, &lock_flags, ldlm_completion_ast,
-                              mds_blocking_ast, NULL, child_lockh);
+        rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace, child_res_id,
+                              LDLM_PLAIN, NULL, LCK_EX, &lock_flags,
+                              mds_blocking_ast, ldlm_completion_ast, NULL, NULL,
+                              NULL, 0, NULL, child_lockh);
         if (rc != ELDLM_OK)
                 CERROR("ldlm_cli_enqueue: %d\n", rc);
         else if (child_lockh == &lockh)
                 ldlm_lock_decref(child_lockh, LCK_EX);
 
-        return rc;
+        RETURN(rc);
+}
+
+static int is_mount_object(struct dentry *dparent)
+{
+        struct dentry *dchild;
+
+        if (!(dparent->d_inode->i_mode & S_ISUID))
+                return 0;
+
+        dchild = lookup_one_len(".mntinfo", dparent, strlen(".mntinfo"));
+        if (IS_ERR(dchild) || dchild == NULL)
+                return 0;
+
+        dput(dchild);
+        return 1;
 }
 
 int mds_open(struct mds_update_record *rec, int offset,
@@ -751,13 +809,22 @@ int mds_open(struct mds_update_record *rec, int offset,
         struct mds_body *body = NULL;
         struct dentry *dchild = NULL, *dparent = NULL;
         struct mds_export_data *med;
-        struct lustre_handle parent_lockh;
+        struct lustre_handle parent_lockh[2];
         int rc = 0, cleanup_phase = 0, acc_mode, created = 0;
         int parent_mode = LCK_PR;
         void *handle = NULL;
         struct dentry_params dp;
+        struct mea *mea = NULL;
+        int mea_size, update_mode;
         ENTRY;
 
+        DEBUG_REQ(D_INODE, req, "parent "LPU64"/%u name %*s mode %o",
+                  rec->ur_fid1->id, rec->ur_fid1->generation,
+                  rec->ur_namelen - 1, rec->ur_name, rec->ur_mode);
+
+        parent_lockh[0].cookie = 0;
+        parent_lockh[1].cookie = 0;
+
         if (offset == 2) { /* intent */
                 rep = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*rep));
                 body = lustre_msg_buf(req->rq_repmsg, 1, sizeof (*body));
@@ -773,7 +840,14 @@ int mds_open(struct mds_update_record *rec, int offset,
         /* Step 0: If we are passed a fid, then we assume the client already
          * opened this file and is only replaying the RPC, so we open the
          * inode by fid (at some large expense in security). */
-        if (rec->ur_fid2->id) {
+        if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
+                DEBUG_REQ(D_HA, req, "open replay");
+                CDEBUG(D_HA, "open fid "LPU64"/%u name %*s mode %o\n",
+                          rec->ur_fid2->id, rec->ur_fid2->generation,
+                          rec->ur_namelen - 1, rec->ur_name, rec->ur_mode);
+
+                LASSERT(rec->ur_fid2->id);
+
                 rc = mds_open_by_fid(req, rec->ur_fid2, body, rec->ur_flags,
                                      rec, rep);
                 if (rc != -ENOENT)
@@ -781,7 +855,10 @@ int mds_open(struct mds_update_record *rec, int offset,
                 /* We didn't find the correct inode on disk either, so we
                  * need to re-create it via a regular replay. */
                 LASSERT(rec->ur_flags & MDS_OPEN_CREAT);
+        } else {
+                LASSERT(!rec->ur_fid2->id);
         }
+
         LASSERT(offset == 2); /* If we got here, we must be called via intent */
 
         med = &req->rq_export->exp_mds_data;
@@ -793,11 +870,32 @@ int mds_open(struct mds_update_record *rec, int offset,
         acc_mode = accmode(rec->ur_flags);
 
         /* Step 1: Find and lock the parent */
-        if (rec->ur_flags & O_CREAT)
+        if (rec->ur_flags & O_CREAT) {
+                /* XXX Well, in fact we only need this lock mode change if
+                   in addition to O_CREAT, the file does not exist.
+                   But we do not know if it exists or not yet */
                 parent_mode = LCK_PW;
+        }
+        
+        if (rec->ur_namelen == 1) {
+                /* client (LMV) wants to open the file by fid */
+                CDEBUG(D_OTHER, "OPEN by fid %u/%u/%u\n",
+                                (unsigned) rec->ur_fid1->mds,
+                                (unsigned) rec->ur_fid1->id,
+                                (unsigned) rec->ur_fid1->generation);
+                dchild = mds_fid2dentry(mds, rec->ur_fid1, NULL);
+                if (IS_ERR(dchild)) {
+                        rc = PTR_ERR(dparent);
+                        CERROR("child lookup by a fid error %d\n", rc);
+                        GOTO(cleanup, rc);
+                }
+                goto got_child;
+        }
+        
         dparent = mds_fid2locked_dentry(obd, rec->ur_fid1, NULL, parent_mode,
-                                        &parent_lockh, rec->ur_name,
-                                        rec->ur_namelen - 1);
+                                        parent_lockh, &update_mode, rec->ur_name,
+                                        rec->ur_namelen - 1,
+                                        MDS_INODELOCK_UPDATE);
         if (IS_ERR(dparent)) {
                 rc = PTR_ERR(dparent);
                 CERROR("parent lookup error %d\n", rc);
@@ -807,14 +905,74 @@ int mds_open(struct mds_update_record *rec, int offset,
 
         cleanup_phase = 1; /* parent dentry and lock */
 
+        /* try to retrieve MEA data for this dir */
+        rc = mds_get_lmv_attr(obd, dparent->d_inode, &mea, &mea_size);
+        if (rc)
+                GOTO(cleanup, rc);
+       
+        if (mea != NULL) {
+                /* dir is already splitted, check is requested filename
+                 * should live at this MDS or at another one */
+                int i;
+                i = mea_name2idx(mea, rec->ur_name, rec->ur_namelen - 1);
+                if (mea->mea_master != mea->mea_fids[i].mds) {
+                        CDEBUG(D_OTHER,
+                               "%s: inapropriate MDS(%d) for %lu/%u:%s."
+                               " should be %d(%d)\n", obd->obd_name,
+                               mea->mea_master, dparent->d_inode->i_ino,
+                               dparent->d_inode->i_generation, rec->ur_name,
+                               mea->mea_fids[i].mds, i);
+                        GOTO(cleanup, rc = -ERESTART);
+                }
+        }
+
         /* Step 2: Lookup the child */
         dchild = ll_lookup_one_len(rec->ur_name, dparent, rec->ur_namelen - 1);
-        if (IS_ERR(dchild))
-                GOTO(cleanup, rc = PTR_ERR(dchild));
+        if (IS_ERR(dchild)) {
+                rc = PTR_ERR(dchild);
+                dchild = NULL; /* don't confuse mds_finish_transno() below */
+                GOTO(cleanup, rc);
+        }
 
+got_child:
         cleanup_phase = 2; /* child dentry */
 
         intent_set_disposition(rep, DISP_LOOKUP_EXECD);
+
+        if (dchild->d_flags & DCACHE_CROSS_REF) {
+                struct ldlm_res_id res_id = { . name = {0} };
+                ldlm_policy_data_t policy;
+                int flags = 0;
+                CDEBUG(D_OTHER, "cross reference: %lu/%lu/%lu\n",
+                       (unsigned long) dchild->d_mdsnum,
+                       (unsigned long) dchild->d_inum,
+                       (unsigned long) dchild->d_generation);
+                body->valid |= OBD_MD_FLID | OBD_MD_MDS;
+                body->fid1.id = dchild->d_inum;
+                body->fid1.mds = dchild->d_mdsnum;
+                body->fid1.generation = dchild->d_generation;
+                intent_set_disposition(rep, DISP_LOOKUP_POS);
+                res_id.name[0] = dchild->d_inum;
+                res_id.name[1] = dchild->d_generation;
+                policy.l_inodebits.bits = MDS_INODELOCK_LOOKUP;
+                rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace,
+                                      res_id, LDLM_IBITS, &policy,
+                                      LCK_PR, &flags,
+                                      mds_blocking_ast,
+                                      ldlm_completion_ast, NULL, NULL,
+                                      NULL, 0, NULL, child_lockh);
+#ifdef S_PDIROPS
+                if (parent_lockh[1].cookie != 0)
+                        ldlm_lock_decref(parent_lockh + 1, update_mode);
+#endif
+                ldlm_lock_decref(parent_lockh, parent_mode);
+                if (mea)
+                        OBD_FREE(mea, mea_size);
+                l_dput(dchild);
+                l_dput(dparent);
+                RETURN(rc);
+        }
+        
         if (dchild->d_inode)
                 intent_set_disposition(rep, DISP_LOOKUP_POS);
         else
@@ -825,6 +983,17 @@ int mds_open(struct mds_update_record *rec, int offset,
                 unsigned long ino = rec->ur_fid2->id;
                 struct iattr iattr;
                 struct inode *inode;
+                rc = mds_try_to_split_dir(obd, dparent, &mea, 0, update_mode);
+                CDEBUG(D_OTHER, "%s: splitted %lu/%u - %d\n",
+                       obd->obd_name, dparent->d_inode->i_ino,
+                       dparent->d_inode->i_generation, rc);
+                if (rc > 0) {
+                        /* dir got splitted */
+                        GOTO(cleanup, rc = -ERESTART);
+                } else if (rc < 0) {
+                        /* error happened during spitting */
+                        GOTO(cleanup, rc);
+                }
 
                 if (!(rec->ur_flags & MDS_OPEN_CREAT)) {
                         /* It's negative and we weren't supposed to create it */
@@ -861,15 +1030,15 @@ int mds_open(struct mds_update_record *rec, int offset,
                 }
 
                 created = 1;
-                LTIME_S(iattr.ia_atime) = rec->ur_time;
-                LTIME_S(iattr.ia_ctime) = rec->ur_time;
-                LTIME_S(iattr.ia_mtime) = rec->ur_time;
+                LTIME_S(iattr.ia_atime) = LTIME_S(rec->ur_time);
+                LTIME_S(iattr.ia_ctime) = LTIME_S(rec->ur_time);
+                LTIME_S(iattr.ia_mtime) = LTIME_S(rec->ur_time);
 
-                iattr.ia_uid = rec->ur_fsuid;
+                iattr.ia_uid = rec->_ur_fsuid;
                 if (dparent->d_inode->i_mode & S_ISGID)
                         iattr.ia_gid = dparent->d_inode->i_gid;
                 else
-                        iattr.ia_gid = rec->ur_fsgid;
+                        iattr.ia_gid = rec->_ur_fsgid;
 
                 iattr.ia_valid = ATTR_UID | ATTR_GID | ATTR_ATIME |
                         ATTR_MTIME | ATTR_CTIME;
@@ -884,13 +1053,13 @@ int mds_open(struct mds_update_record *rec, int offset,
                 if (rc)
                         CERROR("error on parent setattr: rc = %d\n", rc);
 
-                acc_mode = 0;                  /* Don't check for permissions */
+                acc_mode = 0;           /* Don't check for permissions */
         }
 
         LASSERT(!mds_inode_is_orphan(dchild->d_inode));
 
-        mds_pack_inode2fid(&body->fid1, dchild->d_inode);
-        mds_pack_inode2body(body, dchild->d_inode);
+        mds_pack_inode2fid(obd, &body->fid1, dchild->d_inode);
+        mds_pack_inode2body(obd, body, dchild->d_inode);
 
         if (S_ISREG(dchild->d_inode->i_mode)) {
                 /* Check permissions etc */
@@ -925,6 +1094,23 @@ int mds_open(struct mds_update_record *rec, int offset,
             !S_ISDIR(dchild->d_inode->i_mode))
                 GOTO(cleanup, rc = -ENOTDIR);
 
+        if (S_ISDIR(dchild->d_inode->i_mode)) {
+                if (rec->ur_flags & MDS_OPEN_CREAT ||
+                    rec->ur_flags & FMODE_WRITE) {
+                        /*we are trying to create or write a exist dir*/
+                        GOTO(cleanup, rc = -EISDIR);
+                }
+                if (ll_permission(dchild->d_inode, acc_mode, NULL)) {
+                        GOTO(cleanup, rc = -EACCES);
+                }
+                if (is_mount_object(dchild)) {
+                        CERROR("Found possible GNS mount object %*s; not "
+                               "opening.\n", dchild->d_name.len,
+                               dchild->d_name.name);
+                        GOTO(cleanup, rc = 0); // success, but don't really open
+                }
+        }
+
         /* Step 5: mds_open it */
         rc = mds_finish_open(req, dchild, body, rec->ur_flags, &handle, rec,
                              rep);
@@ -933,9 +1119,6 @@ int mds_open(struct mds_update_record *rec, int offset,
  cleanup:
         rc = mds_finish_transno(mds, dchild ? dchild->d_inode : NULL, handle,
                                 req, rc, rep ? rep->lock_policy_res1 : 0);
-        /* XXX what do we do here if mds_finish_transno itself failed? */
-        if (created)
-                mds_lock_new_child(obd, dchild->d_inode, NULL);
 
         switch (cleanup_phase) {
         case 2:
@@ -946,6 +1129,10 @@ int mds_open(struct mds_update_record *rec, int offset,
                                        dchild->d_name.len, dchild->d_name.name,
                                        err);
                         }
+                } else if (created) {
+#if 0
+                        mds_lock_new_child(obd, dchild->d_inode, NULL);
+#endif
                 }
                 l_dput(dchild);
         case 1:
@@ -953,13 +1140,17 @@ int mds_open(struct mds_update_record *rec, int offset,
                         break;
 
                 l_dput(dparent);
+#ifdef S_PDIROPS
+                if (parent_lockh[1].cookie != 0)
+                        ldlm_lock_decref(parent_lockh + 1, update_mode);
+#endif
                 if (rc)
-                        ldlm_lock_decref(&parent_lockh, parent_mode);
+                        ldlm_lock_decref(parent_lockh, parent_mode);
                 else
-                        ldlm_put_lock_into_req(req, &parent_lockh, parent_mode);
+                        ptlrpc_save_lock (req, parent_lockh, parent_mode);
         }
-        if (rc == 0)
-                atomic_inc(&mds->mds_open_count);
+        if (mea)
+                OBD_FREE(mea, mea_size);
         RETURN(rc);
 }
 
@@ -982,16 +1173,18 @@ int mds_mfd_close(struct ptlrpc_request *req, struct obd_device *obd,
         struct mds_obd *mds = &obd->u.mds;
         struct inode *pending_dir = mds->mds_pending_dir->d_inode;
         void *handle = NULL;
-        struct mds_body *request_body, *reply_body;
+        struct mds_body *request_body = NULL, *reply_body = NULL;
         struct dentry_params dp;
+        struct iattr iattr = { 0 };
+        struct llog_create_locks *lcl = NULL;
         ENTRY;
 
-        if (req != NULL) {
+        if (req && req->rq_reqmsg != NULL)
                 request_body = lustre_msg_buf(req->rq_reqmsg, 0,
                                               sizeof(*request_body));
+        if (req && req->rq_repmsg != NULL)
                 reply_body = lustre_msg_buf(req->rq_repmsg, 0,
                                             sizeof(*reply_body));
-        }
 
         fidlen = ll_fid2str(fidname, inode->i_ino, inode->i_generation);
 
@@ -1007,9 +1200,17 @@ int mds_mfd_close(struct ptlrpc_request *req, struct obd_device *obd,
         }
 
         if (last_orphan && unlink_orphan) {
+                struct lov_mds_md *lmm = NULL;
+                int stripe_count = 0;
                 LASSERT(rc == 0); /* mds_put_write_access must have succeeded */
 
-                CWARN("destroying orphan object %s\n", fidname);
+                if (obd->obd_recovering) {
+                        CDEBUG(D_HA, "not remove orphan %s until recovery"
+                               " is over\n", fidname);
+                        GOTO(out, rc);
+                }
+
+                CDEBUG(D_HA, "destroying orphan object %s\n", fidname);
 
                 /* Sadly, there is no easy way to save pending_child from
                  * mds_reint_unlink() into mfd, so we need to re-lookup,
@@ -1024,22 +1225,19 @@ int mds_mfd_close(struct ptlrpc_request *req, struct obd_device *obd,
                 LASSERT(pending_child->d_inode != NULL);
 
                 cleanup_phase = 2; /* dput(pending_child) when finished */
-                handle = fsfilt_start(obd, pending_dir, FSFILT_OP_UNLINK_LOG,
-                                      NULL);
+                if (req != NULL && req->rq_repmsg != NULL) {
+                        lmm = lustre_msg_buf(req->rq_repmsg, 1, 0);
+                        stripe_count = le32_to_cpu(lmm->lmm_stripe_count);
+                }
+
+                handle = fsfilt_start_log(obd, pending_dir, FSFILT_OP_UNLINK,
+                                          NULL, stripe_count);
                 if (IS_ERR(handle)) {
                         rc = PTR_ERR(handle);
                         handle = NULL;
                         GOTO(cleanup, rc);
                 }
 
-#ifdef ENABLE_ORPHANS
-                if (req != NULL &&
-                    (reply_body->valid & OBD_MD_FLEASIZE) &&
-                    mds_log_op_unlink(obd, pending_child->d_inode,
-                                      req->rq_repmsg, 1) > 0) {
-                        reply_body->valid |= OBD_MD_FLCOOKIE;
-                }
-#endif
                 pending_child->d_fsdata = (void *) &dp;
                 dp.p_inum = 0;
                 dp.p_ptr = req;
@@ -1049,41 +1247,85 @@ int mds_mfd_close(struct ptlrpc_request *req, struct obd_device *obd,
                         rc = vfs_unlink(pending_dir, pending_child);
                 if (rc)
                         CERROR("error unlinking orphan %s: rc %d\n",fidname,rc);
-        } else if (mfd->mfd_mode & FMODE_WRITE && rc == 0) {
+
+                if (req != NULL && req->rq_repmsg != NULL &&
+                    (reply_body->valid & OBD_MD_FLEASIZE) &&
+                    mds_log_op_unlink(obd, pending_child->d_inode,
+                                                lmm, req->rq_repmsg->buflens[1],
+                                                lustre_msg_buf(req->rq_repmsg, 2, 0),
+                                                req->rq_repmsg->buflens[2], &lcl) > 0) {
+                        reply_body->valid |= OBD_MD_FLCOOKIE;
+                }
+
+                goto out; /* Don't bother updating attrs on unlinked inode */
+        }
+
+        if (request_body != NULL && mfd->mfd_mode & FMODE_WRITE && rc == 0) {
                 /* Update the on-disk attributes if this was the last write
                  * close, and all information was provided (i.e., rc == 0)
                  *
                  * XXX this should probably be abstracted with mds_reint_setattr
                  */
+
 #if 0
-                struct iattr iattr;
+                if (request_body->valid & OBD_MD_FLMTIME &&
+                    LTIME_S(request_body->mtime) > LTIME_S(inode->i_mtime)) {
+                        LTIME_S(iattr.ia_mtime) = LTIME_S(request_body->mtime);
+                        iattr.ia_valid |= ATTR_MTIME;
+                }
+                if (request_body->valid & OBD_MD_FLCTIME &&
+                    LTIME_S(request_body->ctime) > LTIME_S(inode->i_ctime)) {
+                        LTIME_S(iattr.ia_ctime) = LTIME_S(request_body->ctime);
+                        iattr.ia_valid |= ATTR_CTIME;
+                }
 
                 /* XXX can't set block count with fsfilt_setattr (!) */
-                iattr.ia_valid = ATTR_CTIME | ATTR_ATIME |
-                        ATTR_MTIME | ATTR_SIZE;
-                iattr.ia_atime = request_body->atime;
-                iattr.ia_ctime = request_body->ctime;
-                iattr.ia_mtime = request_body->mtime;
-                iattr.ia_size = request_body->size;
-                /* iattr.ia_blocks = request_body->blocks */
+                if (request_body->valid & OBD_MD_FLSIZE) {
+                        iattr.ia_valid |= ATTR_SIZE;
+                        iattr.ia_size = request_body->size;
+                }
+                /* if (request_body->valid & OBD_MD_FLBLOCKS) {
+                        iattr.ia_valid |= ATTR_BLOCKS;
+                        iattr.ia_blocks = request_body->blocks
+                } */
+
+#endif
+        }
 
+        if (request_body != NULL && request_body->valid & OBD_MD_FLATIME) {
+                /* Only start a transaction to write out only the atime if
+                 * it is more out-of-date than the specified limit.  If we
+                 * are already going to write out the atime then do it anyway.
+                 * */
+                if ((LTIME_S(request_body->atime) >
+                     LTIME_S(inode->i_atime) + MAX_ATIME_DIFF) ||
+                    (iattr.ia_valid != 0 &&
+                     LTIME_S(request_body->atime) > LTIME_S(inode->i_atime))) {
+                        LTIME_S(iattr.ia_atime) = LTIME_S(request_body->atime);
+                        iattr.ia_valid |= ATTR_ATIME;
+                }
+        }
+
+        if (iattr.ia_valid != 0) {
                 handle = fsfilt_start(obd, inode, FSFILT_OP_SETATTR, NULL);
                 if (IS_ERR(handle))
                         GOTO(cleanup, rc = PTR_ERR(handle));
                 rc = fsfilt_setattr(obd, mfd->mfd_dentry, handle, &iattr, 0);
                 if (rc)
                         CERROR("error in setattr(%s): rc %d\n", fidname, rc);
-#endif
         }
+out:
+        /* If other clients have this file open for write, rc will be > 0 */
+        if (rc > 0)
+                rc = 0;
         l_dput(mfd->mfd_dentry);
         mds_mfd_destroy(mfd);
 
  cleanup:
-        atomic_dec(&mds->mds_open_count);
-        if (req) {
+        if (req != NULL && reply_body != NULL) {
                 rc = mds_finish_transno(mds, pending_dir, handle, req, rc, 0);
         } else if (handle) {
-                int err = fsfilt_commit(obd, pending_dir, handle, 0);
+                int err = fsfilt_commit(obd, mds->mds_sb, pending_dir, handle, 0);
                 if (err) {
                         CERROR("error committing close: %d\n", err);
                         if (!rc)
@@ -1093,6 +1335,8 @@ int mds_mfd_close(struct ptlrpc_request *req, struct obd_device *obd,
 
         switch (cleanup_phase) {
         case 2:
+                if (lcl != NULL)
+                        ptlrpc_save_llog_lock(req, lcl);
                 dput(pending_child);
         case 1:
                 up(&pending_dir->i_sem);
@@ -1106,14 +1350,27 @@ int mds_close(struct ptlrpc_request *req)
         struct obd_device *obd = req->rq_export->exp_obd;
         struct mds_body *body;
         struct mds_file_data *mfd;
-        struct obd_run_ctxt saved;
+        struct lvfs_run_ctxt saved;
         struct inode *inode;
         int rc, repsize[3] = {sizeof(struct mds_body),
                               obd->u.mds.mds_max_mdsize,
                               obd->u.mds.mds_max_cookiesize};
         ENTRY;
 
-        MDS_CHECK_RESENT(req, mds_reconstruct_generic(req));
+        rc = lustre_pack_reply(req, 3, repsize, NULL);
+        if (rc) {
+                CERROR("lustre_pack_reply: rc = %d\n", rc);
+                req->rq_status = rc;
+        } else {
+                MDS_CHECK_RESENT(req, mds_reconstruct_generic(req));
+        }
+
+        if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
+                DEBUG_REQ(D_HA, req, "close replay\n");
+                memcpy(lustre_msg_buf(req->rq_repmsg, 2, 0),
+                       lustre_msg_buf(req->rq_reqmsg, 1, 0),
+                       req->rq_repmsg->buflens[2]);
+        }
 
         body = lustre_swab_reqbuf(req, 0, sizeof(*body), lustre_swab_mds_body);
         if (body == NULL) {
@@ -1133,28 +1390,22 @@ int mds_close(struct ptlrpc_request *req)
                 RETURN(-ESTALE);
         }
 
-        rc = lustre_pack_reply(req, 3, repsize, NULL);
-        if (rc) {
-                CERROR("lustre_pack_reply: rc = %d\n", rc);
-                req->rq_status = rc;
-        }
-
         inode = mfd->mfd_dentry->d_inode;
         if (mds_inode_is_orphan(inode) && mds_open_orphan_count(inode) == 1) {
                 body = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*body));
                 LASSERT(body != NULL);
 
-                mds_pack_inode2fid(&body->fid1, inode);
-                mds_pack_inode2body(body, inode);
+                mds_pack_inode2fid(obd, &body->fid1, inode);
+                mds_pack_inode2body(obd, body, inode);
                 mds_pack_md(obd, req->rq_repmsg, 1, body, inode, 1);
         }
         spin_lock(&med->med_open_lock);
         list_del(&mfd->mfd_list);
         spin_unlock(&med->med_open_lock);
 
-        push_ctxt(&saved, &obd->obd_ctxt, NULL);
-        req->rq_status = mds_mfd_close(rc ? NULL : req, obd, mfd, 1);
-        pop_ctxt(&saved, &obd->obd_ctxt, NULL);
+        push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
+        req->rq_status = mds_mfd_close(req, obd, mfd, 1);
+        pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
 
         if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CLOSE_PACK)) {
                 CERROR("test case OBD_FAIL_MDS_CLOSE_PACK\n");