#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);
- oscc->oscc_flags &= ~OSCC_FLAG_CREATING;
- if (rc == -ENOSPC || rc == -EROFS) {
- oscc->oscc_flags |= OSCC_FLAG_NOSPC;
- if (body && rc == -ENOSPC) {
- oscc->oscc_grow_count = OST_MIN_PRECREATE;
- oscc->oscc_last_id = body->oa.o_id;
- }
- spin_unlock(&oscc->oscc_lock);
- DEBUG_REQ(D_INODE, req, "OST out of space, flagging");
- } else if (rc != 0 && rc != -EIO) {
- oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
- oscc->oscc_grow_count = OST_MIN_PRECREATE;
- spin_unlock(&oscc->oscc_lock);
- DEBUG_REQ(D_ERROR, req,
- "unknown rc %d from async create: failing oscc", rc);
- ptlrpc_fail_import(req->rq_import, req->rq_import_generation);
- } else {
- if (rc == 0) {
- oscc->oscc_flags &= ~OSCC_FLAG_LOW;
- if (body) {
- int diff = body->oa.o_id - oscc->oscc_last_id;
- if (diff != oscc->oscc_grow_count)
- oscc->oscc_grow_count =
- max(diff/3, OST_MIN_PRECREATE);
- oscc->oscc_last_id = body->oa.o_id;
- }
- }
- spin_unlock(&oscc->oscc_lock);
- }
-
- CDEBUG(D_HA, "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_grow_count < OST_MAX_PRECREATE &&
- !(oscc->oscc_flags & (OSCC_FLAG_LOW | OSCC_FLAG_RECOVERING)) &&
- (__s64)(oscc->oscc_last_id - oscc->oscc_next_id) <=
- (oscc->oscc_grow_count / 4 + 1)) {
- oscc->oscc_flags |= OSCC_FLAG_LOW;
- oscc->oscc_grow_count *= 2;
- }
-
- if (oscc->oscc_grow_count > OST_MAX_PRECREATE / 2)
- oscc->oscc_grow_count = OST_MAX_PRECREATE / 2;
-
- 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(oscc->oscc_obd->u.cli.cl_import,
- LUSTRE_OBD_VERSION, 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;
- /* probably we should take frequence of request into account? -bzzz */
- if (oscc->oscc_grow_count < oscc->oscc_max_grow_count) {
- oscc->oscc_grow_count *= 2;
- if (oscc->oscc_grow_count > oscc->oscc_max_grow_count)
- oscc->oscc_grow_count = oscc->oscc_max_grow_count;
- }
- body->oa.o_gr = oscc->oscc_gr;
- LASSERT(body->oa.o_gr > 0);
- body->oa.o_valid |= OBD_MD_FLID | OBD_MD_FLGROUP;
- spin_unlock(&oscc->oscc_lock);
- CDEBUG(D_INFO, "preallocating through id "LPU64" (last used "LPU64")\n",
- body->oa.o_id, oscc->oscc_next_id);
-
- 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 have_objs;
- int ost_full;
- int osc_invalid;
-
- have_objs = oscc_has_objects(oscc, count);
-
- spin_lock(&oscc->oscc_lock);
- ost_full = (oscc->oscc_flags & OSCC_FLAG_NOSPC);
- spin_unlock(&oscc->oscc_lock);
-
- osc_invalid = oscc->oscc_obd->u.cli.cl_import->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_grow_count / 2))
- 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 (oscc->oscc_obd->u.cli.cl_import->imp_invalid)
- rc = -EIO;
-
- RETURN(rc);
-}
-
int oscc_recovering(struct osc_creator *oscc)
{
int recov = 0;
return recov;
}
+/* this only is used now for deleting orphanes */
int osc_create(struct obd_export *exp, struct obdo *oa,
- void *acl, int acl_size,
- 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->exp_obd->u.cli.cl_oscc;
- int try_again = 1, rc = 0;
+ int rc = 0, try_again = 1;
ENTRY;
+
LASSERT(oa);
LASSERT(ea);
- LASSERT(oa->o_valid & OBD_MD_FLGROUP);
LASSERT(oa->o_gr > 0);
+ LASSERT(oa->o_valid & OBD_MD_FLGROUP);
LASSERT(acl == NULL && acl_size == 0);
- if ((oa->o_valid & OBD_MD_FLFLAGS) &&
- oa->o_flags == OBD_FL_RECREATE_OBJS) {
- /* Exceptional case where we are trying to repair missing
- * objects for various groups. We have already validated that
- * this is a valid group for the file. Don't set oscc->oscc_gr.
- */
- RETURN(osc_real_create(exp, oa, ea, oti));
- }
-
- LASSERT(oscc->oscc_gr == 0 || oscc->oscc_gr == oa->o_gr);
- oscc->oscc_gr = oa->o_gr;
-
if (oa->o_gr == FILTER_GROUP_LLOG || oa->o_gr == FILTER_GROUP_ECHO)
RETURN(osc_real_create(exp, oa, ea, oti));
exp->exp_obd->obd_name);
LASSERT(oscc->oscc_flags & OSCC_FLAG_RECOVERING);
- /* 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);
if (rc == -ENOSPC)
oscc->oscc_flags |= OSCC_FLAG_NOSPC;
oscc->oscc_flags &= ~OSCC_FLAG_RECOVERING;
- oscc->oscc_last_id = oa->o_id;
-
CDEBUG(D_HA, "%s: oscc recovery finished: %d\n",
oscc->oscc_obd->obd_name, rc);
- wake_up(&oscc->oscc_waitq);
-
} else {
CDEBUG(D_ERROR, "%s: oscc recovery failed: %d\n",
oscc->oscc_obd->obd_name, rc);
}
spin_unlock(&oscc->oscc_lock);
-
RETURN(rc);
}
- lsm = *ea;
- if (lsm == NULL) {
- rc = obd_alloc_memmd(exp, &lsm);
- if (rc < 0)
- RETURN(rc);
- }
-
while (try_again) {
- /* If orphans are being recovered, then we must wait until
+ /* 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, "%s: oscc recovery over, waking up\n",
- exp->exp_obd->obd_name);
+ CDEBUG(D_HA, "%p: oscc recovery over, waking up\n",
+ oscc);
}
-
+
spin_lock(&oscc->oscc_lock);
if (oscc->oscc_flags & OSCC_FLAG_EXITING) {
spin_unlock(&oscc->oscc_lock);
break;
}
- 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;
- } else if (oscc->oscc_flags & OSCC_FLAG_NOSPC) {
+ 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)
- break;
- }
- if (rc == 0)
CDEBUG(D_HA, "%s: returning objid "LPU64"\n",
oscc->oscc_obd->u.cli.cl_import->imp_target_uuid.uuid,
- lsm->lsm_object_id);
- else if (*ea == NULL)
- obd_free_memmd(exp, &lsm);
+ oa->o_id);
+ }
+
RETURN(rc);
}
return;
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_max_grow_count = 2000;
- oscc->oscc_grow_count = OST_MIN_PRECREATE;
- oscc->oscc_next_id = 2;
- oscc->oscc_last_id = 1;
+ oscc->oscc_obd = obd;
+ spin_lock_init(&oscc->oscc_lock);
oscc->oscc_flags |= OSCC_FLAG_RECOVERING;
- /* XXX the export handle should give the oscc the last object */
- /* oed->oed_oscc.oscc_last_id = exph->....; */
+ init_waitqueue_head(&oscc->oscc_waitq);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff