Whamcloud - gitweb
landing b_cmobd_merge on HEAD
[fs/lustre-release.git] / lustre / osc / osc_create.c
index 21a2be7..ed8ae35 100644 (file)
@@ -36,7 +36,8 @@
 # include <linux/module.h>
 # include <linux/mm.h>
 # include <linux/highmem.h>
-# include <linux/lustre_dlm.h>
+# include <linux/ctype.h>
+# include <linux/init.h>
 # if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
 #  include <linux/workqueue.h>
 #  include <linux/smp_lock.h>
 # include <liblustre.h>
 #endif
 
-#ifndef  __CYGWIN__
-# include <linux/ctype.h>
-# include <linux/init.h>
-#else
+#ifdef  __CYGWIN__
 # include <ctype.h>
 #endif
 
+# include <linux/lustre_dlm.h>
 #include <linux/obd_class.h>
 #include "osc_internal.h"
 
@@ -82,12 +81,13 @@ static int osc_interpret_create(struct ptlrpc_request *req, void *data,
                 DEBUG_REQ(D_ERROR, req,
                           "unknown rc %d from async create: failing oscc",
                           rc);
+                oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
                 ptlrpc_fail_import(req->rq_import, req->rq_import_generation);
         }
         oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
         spin_unlock(&oscc->oscc_lock);
 
-        CDEBUG(D_INFO, "preallocated through id "LPU64" (last used "LPU64")\n",
+        CDEBUG(D_HA, "preallocated through id "LPU64" (last used "LPU64")\n",
                oscc->oscc_last_id, oscc->oscc_next_id);
 
         wake_up(&oscc->oscc_waitq);
@@ -102,14 +102,15 @@ static int oscc_internal_create(struct osc_creator *oscc)
         ENTRY;
 
         spin_lock(&oscc->oscc_lock);
-        if (oscc->oscc_flags & OSCC_FLAG_CREATING) {
+        if (oscc->oscc_flags & OSCC_FLAG_CREATING ||
+            oscc->oscc_flags & OSCC_FLAG_RECOVERING) {
                 spin_unlock(&oscc->oscc_lock);
                 RETURN(0);
         }
         oscc->oscc_flags |= OSCC_FLAG_CREATING;
         spin_unlock(&oscc->oscc_lock);
 
-        request = ptlrpc_prep_req(class_exp2cliimp(oscc->oscc_exp), OST_CREATE,
+        request = ptlrpc_prep_req(oscc->oscc_obd->u.cli.cl_import, OST_CREATE,
                                   1, &size, NULL);
         if (request == NULL) {
                 spin_lock(&oscc->oscc_lock);
@@ -123,7 +124,9 @@ static int oscc_internal_create(struct osc_creator *oscc)
 
         spin_lock(&oscc->oscc_lock);
         body->oa.o_id = oscc->oscc_last_id + oscc->oscc_grow_count;
-        body->oa.o_valid |= OBD_MD_FLID;
+        body->oa.o_gr = oscc->oscc_gr;
+        LASSERT(body->oa.o_gr > 0);
+        body->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
         CDEBUG(D_INFO, "preallocating through id "LPU64" (last used "LPU64")\n",
                body->oa.o_id, oscc->oscc_next_id);
         spin_unlock(&oscc->oscc_lock);
@@ -132,7 +135,7 @@ static int oscc_internal_create(struct osc_creator *oscc)
 
         request->rq_async_args.pointer_arg[0] = oscc;
         request->rq_interpret_reply = osc_interpret_create;
-        osc_rpcd_add_req(request);
+        ptlrpcd_add_req(request);
 
         RETURN(0);
 }
@@ -162,8 +165,8 @@ static int oscc_wait_for_objects(struct osc_creator *oscc, int count)
         ost_full = (oscc->oscc_flags & OSCC_FLAG_NOSPC);
         spin_unlock(&oscc->oscc_lock);
 
-        osc_invalid = class_exp2cliimp(oscc->oscc_exp)->imp_invalid;
-
+        osc_invalid = oscc->oscc_obd->u.cli.cl_import->imp_invalid;
+                      
         return have_objs || ost_full || osc_invalid;
 }
 
@@ -185,25 +188,46 @@ static int oscc_precreate(struct osc_creator *oscc, int wait)
         if (!oscc_has_objects(oscc, 1) && (oscc->oscc_flags & OSCC_FLAG_NOSPC))
                 rc = -ENOSPC;
 
-        if (class_exp2cliimp(oscc->oscc_exp)->imp_invalid)
+        if (oscc->oscc_obd->u.cli.cl_import->imp_invalid)
                 rc = -EIO;
 
         RETURN(rc);
 }
 
+int oscc_recovering(struct osc_creator *oscc) 
+{
+        int recov = 0;
+
+        spin_lock(&oscc->oscc_lock);
+        recov = oscc->oscc_flags & OSCC_FLAG_RECOVERING;
+        spin_unlock(&oscc->oscc_lock);
+
+        return recov;
+}
+
 int osc_create(struct obd_export *exp, struct obdo *oa,
                struct lov_stripe_md **ea, struct obd_trans_info *oti)
 {
         struct lov_stripe_md *lsm;
-        struct osc_creator *oscc = &exp->u.eu_osc_data.oed_oscc;
+        struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
         int try_again = 1, rc = 0;
         ENTRY;
         LASSERT(oa);
         LASSERT(ea);
+        LASSERT(oa->o_valid & OBD_MD_FLGROUP);
+        LASSERT(oa->o_gr > 0);
+
+        LASSERT(oscc->oscc_gr == 0 || oscc->oscc_gr == oa->o_gr);
+        oscc->oscc_gr = oa->o_gr;
 
-        if ((oa->o_valid & OBD_MD_FLGROUP) && (oa->o_gr != 0))
+        if (oa->o_gr == FILTER_GROUP_LLOG || oa->o_gr == FILTER_GROUP_ECHO)
                 RETURN(osc_real_create(exp, oa, ea, oti));
 
+        if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+            oa->o_flags == OBD_FL_RECREATE_OBJS) { 
+                RETURN(osc_real_create(exp, oa, ea, oti));
+        }
+
         lsm = *ea;
         if (lsm == NULL) {
                 rc = obd_alloc_memmd(exp, &lsm);
@@ -214,28 +238,63 @@ int osc_create(struct obd_export *exp, struct obdo *oa,
        /* this is the special case where create removes orphans */
        if ((oa->o_valid & OBD_MD_FLFLAGS) &&
            oa->o_flags == OBD_FL_DELORPHAN) {
+                CDEBUG(D_HA, "%p: oscc recovery started\n", oscc);
                 /* delete from next_id on up */
                 oa->o_valid |= OBD_MD_FLID;
-                oa->o_id = oscc->oscc_next_id;
-                if (oa->o_id == 0)
-                        RETURN(0);
-                rc = osc_real_create(oscc->oscc_exp, oa, ea, NULL);
+                oa->o_id = oscc->oscc_next_id - 1;
+
+                CDEBUG(D_HA, "%s: deleting to next_id: "LPU64"\n", 
+                       oscc->oscc_obd->u.cli.cl_import->imp_target_uuid.uuid, 
+                       oa->o_id);
+
+                rc = osc_real_create(exp, oa, ea, NULL);
 
                 spin_lock(&oscc->oscc_lock);
                 if (rc == -ENOSPC)
                         oscc->oscc_flags |= OSCC_FLAG_NOSPC;
+                oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
                 oscc->oscc_last_id = oa->o_id;
+                wake_up(&oscc->oscc_waitq);
                 spin_unlock(&oscc->oscc_lock);
+                
+                /*recover happen in mds_setup, before cobd_setup, so
+                 *reset oscc_gr = 0 here, it sould be no harm to CMD
+                 */ 
+                oscc->oscc_gr = 0;
+                CDEBUG(D_HA, "%p: oscc recovery finished\n", oscc);
 
                RETURN(rc);
        }
 
         while (try_again) {
+                /* If orphans are being recovered, then we must wait until 
+                   it is finished before we can continue with create. */
+                if (oscc_recovering(oscc)) {
+                        struct l_wait_info lwi;
+                        
+                        CDEBUG(D_HA,"%p: oscc recovery in progress, waiting\n", 
+                               oscc);
+                        
+                        lwi = LWI_TIMEOUT(MAX(obd_timeout * HZ, 1), NULL, NULL);
+                        rc = l_wait_event(oscc->oscc_waitq, 
+                                          !oscc_recovering(oscc), &lwi);
+                        LASSERT(rc == 0 || rc == -ETIMEDOUT);
+                        if (rc == -ETIMEDOUT) {
+                                CDEBUG(D_HA, "%p: timed out waiting for "
+                                       "recovery\n", oscc);
+                                RETURN(rc);
+                        }
+                        CDEBUG(D_HA, "%p: oscc recovery over, waking up\n", 
+                               oscc);
+                }
+                
                 spin_lock(&oscc->oscc_lock);
                 if (oscc->oscc_last_id >= oscc->oscc_next_id) {
                         memcpy(oa, &oscc->oscc_oa, sizeof(*oa));
                         oa->o_id = oscc->oscc_next_id;
+                        oa->o_gr = oscc->oscc_gr;
                         lsm->lsm_object_id = oscc->oscc_next_id;
+                        lsm->lsm_object_gr = oscc->oscc_gr;
                         *ea = lsm;
                         oscc->oscc_next_id++;
                         try_again = 0;
@@ -251,31 +310,34 @@ int osc_create(struct obd_export *exp, struct obdo *oa,
         }
 
         if (rc == 0)
-                CDEBUG(D_INFO, "returning objid "LPU64"\n", lsm->lsm_object_id);
+                CDEBUG(D_INFO, "returning objid "LPU64"/"LPU64"\n",
+                                lsm->lsm_object_id, lsm->lsm_object_gr);
         else if (*ea == NULL)
                 obd_free_memmd(exp, &lsm);
         RETURN(rc);
 }
 
-void oscc_init(struct obd_export *exp)
+void oscc_init(struct obd_device *obd)
 {
-        struct osc_export_data *oed;
+        struct osc_creator *oscc;
 
-        if (exp == NULL)
+        if (obd == NULL)
                 return;
 
-        oed = &exp->exp_osc_data;
-        memset(oed, 0, sizeof(*oed));
-        INIT_LIST_HEAD(&oed->oed_oscc.oscc_list);
-        init_waitqueue_head(&oed->oed_oscc.oscc_waitq);
-        spin_lock_init(&oed->oed_oscc.oscc_lock);
-        oed->oed_oscc.oscc_exp = exp;
-        oed->oed_oscc.oscc_kick_barrier = 100;
-        oed->oed_oscc.oscc_grow_count = 2000;
-        oed->oed_oscc.oscc_initial_create_count = 2000;
-
-        oed->oed_oscc.oscc_next_id = 2;
-        oed->oed_oscc.oscc_last_id = 1;
+        oscc = &obd->u.cli.cl_oscc;
+
+        memset(oscc, 0, sizeof(*oscc));
+        INIT_LIST_HEAD(&oscc->oscc_list);
+        init_waitqueue_head(&oscc->oscc_waitq);
+        spin_lock_init(&oscc->oscc_lock);
+        oscc->oscc_obd = obd;
+        oscc->oscc_kick_barrier = 100;
+        oscc->oscc_grow_count = 2000;
+        oscc->oscc_initial_create_count = 2000;
+
+        oscc->oscc_next_id = 2;
+        oscc->oscc_last_id = 1;
+        oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
         /* XXX the export handle should give the oscc the last object */
         /* oed->oed_oscc.oscc_last_id = exph->....; */
 }