# 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"
-static int osc_interpret_create(struct ptlrpc_request *req, void *data,
- int rc)
-{
- struct osc_creator *oscc;
- struct ost_body *body = NULL;
- ENTRY;
-
- if (req->rq_repmsg) {
- body = lustre_swab_repbuf(req, 0, sizeof(*body),
- lustre_swab_ost_body);
- if (body == NULL && rc == 0)
- rc = -EPROTO;
- }
-
- oscc = req->rq_async_args.pointer_arg[0];
- spin_lock(&oscc->oscc_lock);
- if (body)
- oscc->oscc_last_id = body->oa.o_id;
- if (rc == -ENOSPC) {
- DEBUG_REQ(D_INODE, req, "OST out of space, flagging");
- oscc->oscc_flags |= OSCC_FLAG_NOSPC;
- } else if (rc != 0 && rc != -EIO) {
- DEBUG_REQ(D_ERROR, req,
- "unknown rc %d from async create: failing oscc",
- rc);
- 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",
- oscc->oscc_last_id, oscc->oscc_next_id);
-
- wake_up(&oscc->oscc_waitq);
- RETURN(rc);
-}
-
-static int oscc_internal_create(struct osc_creator *oscc)
-{
- struct ptlrpc_request *request;
- struct ost_body *body;
- int size = sizeof(*body);
- ENTRY;
-
- spin_lock(&oscc->oscc_lock);
- if (oscc->oscc_flags & OSCC_FLAG_CREATING) {
- 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,
- 1, &size, NULL);
- if (request == NULL) {
- spin_lock(&oscc->oscc_lock);
- oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
- spin_unlock(&oscc->oscc_lock);
- RETURN(-ENOMEM);
- }
-
- request->rq_request_portal = OST_CREATE_PORTAL; //XXX FIXME bug 249
- body = lustre_msg_buf(request->rq_reqmsg, 0, sizeof(*body));
-
- spin_lock(&oscc->oscc_lock);
- body->oa.o_id = oscc->oscc_last_id + oscc->oscc_grow_count;
- body->oa.o_valid |= OBD_MD_FLID;
- CDEBUG(D_INFO, "preallocating through id "LPU64" (last used "LPU64")\n",
- body->oa.o_id, oscc->oscc_next_id);
- spin_unlock(&oscc->oscc_lock);
-
- request->rq_replen = lustre_msg_size(1, &size);
-
- request->rq_async_args.pointer_arg[0] = oscc;
- request->rq_interpret_reply = osc_interpret_create;
- ptlrpcd_add_req(request);
-
- RETURN(0);
-}
-
-static int oscc_has_objects(struct osc_creator *oscc, int count)
-{
- int have_objs;
- spin_lock(&oscc->oscc_lock);
- have_objs = ((__s64)(oscc->oscc_last_id - oscc->oscc_next_id) >= count);
- spin_unlock(&oscc->oscc_lock);
-
- if (!have_objs)
- oscc_internal_create(oscc);
-
- return have_objs;
-}
-
-static int oscc_wait_for_objects(struct osc_creator *oscc, int count)
+int oscc_recovering(struct osc_creator *oscc)
{
- int have_objs;
- int ost_full;
- int osc_invalid;
-
- have_objs = oscc_has_objects(oscc, count);
+ int recov = 0;
spin_lock(&oscc->oscc_lock);
- ost_full = (oscc->oscc_flags & OSCC_FLAG_NOSPC);
+ recov = oscc->oscc_flags & OSCC_FLAG_RECOVERING;
spin_unlock(&oscc->oscc_lock);
- osc_invalid = class_exp2cliimp(oscc->oscc_exp)->imp_invalid;
-
- return have_objs || ost_full || osc_invalid;
-}
-
-static int oscc_precreate(struct osc_creator *oscc, int wait)
-{
- struct l_wait_info lwi = { 0 };
- int rc = 0;
- ENTRY;
-
- if (oscc_has_objects(oscc, oscc->oscc_kick_barrier))
- RETURN(0);
-
- if (!wait)
- RETURN(0);
-
- /* no rc check -- a no-INTR, no-TIMEOUT wait can't fail */
- l_wait_event(oscc->oscc_waitq, oscc_wait_for_objects(oscc, 1), &lwi);
-
- if (!oscc_has_objects(oscc, 1) && (oscc->oscc_flags & OSCC_FLAG_NOSPC))
- rc = -ENOSPC;
-
- if (class_exp2cliimp(oscc->oscc_exp)->imp_invalid)
- rc = -EIO;
-
- RETURN(rc);
+ return recov;
}
+/* this only is used now for deleting orphanes */
int osc_create(struct obd_export *exp, struct obdo *oa,
- struct lov_stripe_md **ea, struct obd_trans_info *oti)
+ void *acl, int acl_size, 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;
- int try_again = 1, rc = 0;
+ struct osc_creator *oscc = &exp->exp_obd->u.cli.cl_oscc;
+ int rc = 0, try_again = 1;
ENTRY;
+
LASSERT(oa);
LASSERT(ea);
+ LASSERT(oa->o_gr > 0);
+ LASSERT(oa->o_valid & OBD_MD_FLGROUP);
+ LASSERT(acl == NULL && acl_size == 0);
- 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));
- lsm = *ea;
- if (lsm == NULL) {
- rc = obd_alloc_memmd(exp, &lsm);
- if (rc < 0)
- RETURN(rc);
- }
+ /* this is the special case where create removes orphans */
+ if ((oa->o_valid & OBD_MD_FLFLAGS) &&
+ oa->o_flags == OBD_FL_DELORPHAN) {
+ spin_lock(&oscc->oscc_lock);
+ if (oscc->oscc_flags & OSCC_FLAG_SYNC_IN_PROGRESS) {
+ spin_unlock(&oscc->oscc_lock);
+ return -EBUSY;
+ }
+ if (!(oscc->oscc_flags & OSCC_FLAG_RECOVERING)) {
+ spin_unlock(&oscc->oscc_lock);
+ return 0;
+ }
+ oscc->oscc_flags |= OSCC_FLAG_SYNC_IN_PROGRESS;
+ spin_unlock(&oscc->oscc_lock);
+ CDEBUG(D_HA, "%s; oscc recovery started\n",
+ exp->exp_obd->obd_name);
+ LASSERT(oscc->oscc_flags & OSCC_FLAG_RECOVERING);
- /* this is the special case where create removes orphans */
- if ((oa->o_valid & OBD_MD_FLFLAGS) &&
- oa->o_flags == OBD_FL_DELORPHAN) {
- /* delete from next_id on up */
- oa->o_valid |= OBD_MD_FLID;
- oa->o_id = oscc->oscc_next_id - 1;
+ CDEBUG(D_HA, "%s: deleting to next_id: "LPU64"\n",
+ oscc->oscc_obd->obd_name, oa->o_id);
- rc = osc_real_create(oscc->oscc_exp, oa, ea, NULL);
+ rc = osc_real_create(exp, oa, ea, NULL);
+ if (oscc->oscc_obd == NULL) {
+ CWARN("the obd for oscc %p has been freed\n", oscc);
+ RETURN(rc);
+ }
spin_lock(&oscc->oscc_lock);
- if (rc == -ENOSPC)
- oscc->oscc_flags |= OSCC_FLAG_NOSPC;
- oscc->oscc_last_id = oa->o_id;
+ oscc->oscc_flags &= ~OSCC_FLAG_SYNC_IN_PROGRESS;
+ if (rc == 0 || rc == -ENOSPC) {
+ if (rc == -ENOSPC)
+ oscc->oscc_flags |= OSCC_FLAG_NOSPC;
+ oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
+ CDEBUG(D_HA, "%s: oscc recovery finished: %d\n",
+ oscc->oscc_obd->obd_name, rc);
+ } else {
+ CDEBUG(D_ERROR, "%s: oscc recovery failed: %d\n",
+ oscc->oscc_obd->obd_name, rc);
+ }
spin_unlock(&oscc->oscc_lock);
-
- RETURN(rc);
- }
+ 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/4, 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: timeout waiting on 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;
- lsm->lsm_object_id = oscc->oscc_next_id;
- *ea = lsm;
- oscc->oscc_next_id++;
- try_again = 0;
- } else if (oscc->oscc_flags & OSCC_FLAG_NOSPC) {
+ if (oscc->oscc_flags & OSCC_FLAG_EXITING) {
+ spin_unlock(&oscc->oscc_lock);
+ break;
+ }
+
+ if (oscc->oscc_flags & OSCC_FLAG_NOSPC) {
rc = -ENOSPC;
spin_unlock(&oscc->oscc_lock);
break;
}
+
+ oscc->oscc_next_id++;
+ oa->o_id = oscc->oscc_next_id;
+ try_again = 0;
spin_unlock(&oscc->oscc_lock);
- rc = oscc_precreate(oscc, try_again);
- if (rc == -EIO)
- break;
+
+ CDEBUG(D_HA, "%s: returning objid "LPU64"\n",
+ oscc->oscc_obd->u.cli.cl_import->imp_target_uuid.uuid,
+ oa->o_id);
}
- if (rc == 0)
- CDEBUG(D_INFO, "returning objid "LPU64"\n", lsm->lsm_object_id);
- 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;
+ oscc = &obd->u.cli.cl_oscc;
+ memset(oscc, 0, sizeof(*oscc));
- oed->oed_oscc.oscc_next_id = 2;
- oed->oed_oscc.oscc_last_id = 1;
- /* XXX the export handle should give the oscc the last object */
- /* oed->oed_oscc.oscc_last_id = exph->....; */
+ oscc->oscc_obd = obd;
+ spin_lock_init(&oscc->oscc_lock);
+ oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
+ init_waitqueue_head(&oscc->oscc_waitq);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff