/* lov_merge.c */
void lov_merge_attrs(struct obdo *tgt, struct obdo *src, u64 valid,
struct lov_stripe_md *lsm, int stripeno, int *set);
-int lov_merge_lvb(struct obd_export *exp, struct lov_stripe_md *lsm,
- struct ost_lvb *lvb, int kms_only);
int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
u64 size, int shrink);
int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
int lov_update_common_set(struct lov_request_set *set,
struct lov_request *req, int rc);
int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx);
-int lov_prep_create_set(struct obd_export *exp, struct obd_info *oifo,
- struct lov_stripe_md **ea, struct obdo *src_oa,
- struct obd_trans_info *oti,
- struct lov_request_set **reqset);
-int cb_create_update(void *cookie, int rc);
-int lov_fini_create_set(struct lov_request_set *set, struct lov_stripe_md **ea);
-int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo,
- u32 oa_bufs, struct brw_page *pga,
- struct obd_trans_info *oti,
- struct lov_request_set **reqset);
-int lov_fini_brw_set(struct lov_request_set *set);
int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
struct lov_request_set **reqset);
int lov_fini_getattr_set(struct lov_request_set *set);
struct obdo *src_oa, struct lov_stripe_md *lsm,
struct obd_trans_info *oti,
struct lov_request_set **reqset);
-int lov_update_destroy_set(struct lov_request_set *set,
- struct lov_request *req, int rc);
int lov_fini_destroy_set(struct lov_request_set *set);
int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
struct obd_trans_info *oti,
int lov_update_setattr_set(struct lov_request_set *set,
struct lov_request *req, int rc);
int lov_fini_setattr_set(struct lov_request_set *set);
-int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo,
- struct obd_trans_info *oti,
- struct lov_request_set **reqset);
-int lov_fini_punch_set(struct lov_request_set *set);
-int lov_prep_sync_set(struct obd_export *exp, struct obd_info *obd_info,
- u64 start, u64 end,
- struct lov_request_set **reqset);
-int lov_fini_sync_set(struct lov_request_set *set);
-int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo,
- struct ldlm_enqueue_info *einfo,
- struct lov_request_set **reqset);
-int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc,
- struct ptlrpc_request_set *rqset);
-int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo,
- struct lov_stripe_md *lsm,
- ldlm_policy_data_t *policy, __u32 mode,
- struct lustre_handle *lockh,
- struct lov_request_set **reqset);
-int lov_fini_match_set(struct lov_request_set *set, __u32 mode, __u64 flags);
-int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo,
- struct lov_stripe_md *lsm,
- __u32 mode, struct lustre_handle *lockh,
- struct lov_request_set **reqset);
-int lov_fini_cancel_set(struct lov_request_set *set);
int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
struct lov_request_set **reqset);
void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
struct lov_stripe_md *lsm);
int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
struct lov_mds_md *lmm, int lmm_bytes);
-int lov_setstripe(struct obd_export *exp, int max_lmm_size,
- struct lov_stripe_md **lsmp, struct lov_user_md *lump);
-int lov_setea(struct obd_export *exp, struct lov_stripe_md **lsmp,
- struct lov_user_md *lump);
int lov_getstripe(struct obd_export *exp,
struct lov_stripe_md *lsm, struct lov_user_md *lump);
int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count,
void lsm_free_plain(struct lov_stripe_md *lsm);
void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm);
-int lovea_destroy_object(struct lov_obd *lov, struct lov_stripe_md *lsm,
- struct obdo *oa, void *data);
/* lproc_lov.c */
#if defined (CONFIG_PROC_FS)
extern const struct file_operations lov_proc_target_fops;
return rc;
}
-/** Merge the lock value block(&lvb) attributes from each of the stripes in a
- * file into a single lvb. It is expected that the caller initializes the
- * current atime, mtime, ctime to avoid regressing a more uptodate time on
- * the local client.
- *
- * If \a kms_only is set then we do not consider the recently seen size (rss)
- * when updating the known minimum size (kms). Even when merging RSS, we will
- * take the KMS value if it's larger. This prevents getattr from stomping on
- * dirty cached pages which extend the file size. */
-int lov_merge_lvb(struct obd_export *exp,
- struct lov_stripe_md *lsm, struct ost_lvb *lvb, int kms_only)
-{
- int rc;
- __u64 kms;
-
- lov_stripe_lock(lsm);
- rc = lov_merge_lvb_kms(lsm, lvb, &kms);
- lov_stripe_unlock(lsm);
- if (kms_only)
- lvb->lvb_size = kms;
-
- CDEBUG(D_INODE, "merged for ID "DOSTID" s=%llu m=%llu a=%llu c=%llu b=%llu\n",
- POSTID(&lsm->lsm_oi), lvb->lvb_size, lvb->lvb_mtime,
- lvb->lvb_atime, lvb->lvb_ctime, lvb->lvb_blocks);
- return rc;
-}
-
/* Must be called under the lov_stripe_lock() */
int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
u64 size, int shrink)
return rc ? rc : err;
}
-static int lov_getattr(const struct lu_env *env, struct obd_export *exp,
- struct obd_info *oinfo)
-{
- struct lov_request_set *set;
- struct lov_request *req;
- struct list_head *pos;
- struct lov_obd *lov;
- int err = 0, rc = 0;
-
- LASSERT(oinfo);
- ASSERT_LSM_MAGIC(oinfo->oi_md);
-
- if (!exp || !exp->exp_obd)
- return -ENODEV;
-
- lov = &exp->exp_obd->u.lov;
-
- rc = lov_prep_getattr_set(exp, oinfo, &set);
- if (rc)
- return rc;
-
- list_for_each(pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
-
- CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
- " %u\n", POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
- POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
-
- rc = obd_getattr(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
- &req->rq_oi);
- err = lov_update_common_set(set, req, rc);
- if (err) {
- CERROR("%s: getattr objid "DOSTID" subobj "
- DOSTID" on OST idx %d: rc = %d\n",
- exp->exp_obd->obd_name,
- POSTID(&oinfo->oi_oa->o_oi),
- POSTID(&req->rq_oi.oi_oa->o_oi),
- req->rq_idx, err);
- break;
- }
- }
-
- rc = lov_fini_getattr_set(set);
- if (err)
- rc = err;
- return rc;
-}
-
static int lov_getattr_interpret(struct ptlrpc_request_set *rqset,
void *data, int rc)
{
return rc ? rc : err;
}
-static int lov_setattr(const struct lu_env *env, struct obd_export *exp,
- struct obd_info *oinfo, struct obd_trans_info *oti)
-{
- struct lov_request_set *set;
- struct lov_obd *lov;
- struct list_head *pos;
- struct lov_request *req;
- int err = 0, rc = 0;
-
- LASSERT(oinfo);
- ASSERT_LSM_MAGIC(oinfo->oi_md);
-
- if (!exp || !exp->exp_obd)
- return -ENODEV;
-
- /* for now, we only expect the following updates here */
- LASSERT(!(oinfo->oi_oa->o_valid & ~(OBD_MD_FLID | OBD_MD_FLTYPE |
- OBD_MD_FLMODE | OBD_MD_FLATIME |
- OBD_MD_FLMTIME | OBD_MD_FLCTIME |
- OBD_MD_FLFLAGS | OBD_MD_FLSIZE |
- OBD_MD_FLGROUP | OBD_MD_FLUID |
- OBD_MD_FLGID | OBD_MD_FLFID |
- OBD_MD_FLGENER)));
- lov = &exp->exp_obd->u.lov;
- rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
- if (rc)
- return rc;
-
- list_for_each(pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
-
- rc = obd_setattr(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
- &req->rq_oi, NULL);
- err = lov_update_setattr_set(set, req, rc);
- if (err) {
- CERROR("%s: setattr objid "DOSTID" subobj "
- DOSTID" on OST idx %d: rc = %d\n",
- exp->exp_obd->obd_name,
- POSTID(&set->set_oi->oi_oa->o_oi),
- POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx,
- err);
- if (!rc)
- rc = err;
- }
- }
- err = lov_fini_setattr_set(set);
- if (!rc)
- rc = err;
- return rc;
-}
-
static int lov_setattr_interpret(struct ptlrpc_request_set *rqset,
void *data, int rc)
{
return 0;
}
-static int lov_punch_interpret(struct ptlrpc_request_set *rqset,
- void *data, int rc)
-{
- struct lov_request_set *lovset = (struct lov_request_set *)data;
- int err;
-
- if (rc)
- atomic_set(&lovset->set_completes, 0);
- err = lov_fini_punch_set(lovset);
- return rc ? rc : err;
-}
-
-/* FIXME: maybe we'll just make one node the authoritative attribute node, then
- * we can send this 'punch' to just the authoritative node and the nodes
- * that the punch will affect. */
-static int lov_punch(const struct lu_env *env, struct obd_export *exp,
- struct obd_info *oinfo, struct obd_trans_info *oti,
- struct ptlrpc_request_set *rqset)
-{
- struct lov_request_set *set;
- struct lov_obd *lov;
- struct list_head *pos;
- struct lov_request *req;
- int rc = 0;
-
- LASSERT(oinfo);
- ASSERT_LSM_MAGIC(oinfo->oi_md);
-
- if (!exp || !exp->exp_obd)
- return -ENODEV;
-
- lov = &exp->exp_obd->u.lov;
- rc = lov_prep_punch_set(exp, oinfo, oti, &set);
- if (rc)
- return rc;
-
- list_for_each(pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
-
- rc = obd_punch(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
- &req->rq_oi, NULL, rqset);
- if (rc) {
- CERROR("%s: punch objid "DOSTID" subobj "DOSTID
- " on OST idx %d: rc = %d\n",
- exp->exp_obd->obd_name,
- POSTID(&set->set_oi->oi_oa->o_oi),
- POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx, rc);
- break;
- }
- }
-
- if (rc || list_empty(&rqset->set_requests)) {
- int err;
- err = lov_fini_punch_set(set);
- return rc ? rc : err;
- }
-
- LASSERT(rqset->set_interpret == NULL);
- rqset->set_interpret = lov_punch_interpret;
- rqset->set_arg = (void *)set;
-
- return 0;
-}
-
-static int lov_sync_interpret(struct ptlrpc_request_set *rqset,
- void *data, int rc)
-{
- struct lov_request_set *lovset = data;
- int err;
-
- if (rc)
- atomic_set(&lovset->set_completes, 0);
- err = lov_fini_sync_set(lovset);
- return rc ?: err;
-}
-
-static int lov_sync(const struct lu_env *env, struct obd_export *exp,
- struct obd_info *oinfo, u64 start, u64 end,
- struct ptlrpc_request_set *rqset)
-{
- struct lov_request_set *set = NULL;
- struct lov_obd *lov;
- struct list_head *pos;
- struct lov_request *req;
- int rc = 0;
-
- ASSERT_LSM_MAGIC(oinfo->oi_md);
- LASSERT(rqset != NULL);
-
- if (!exp->exp_obd)
- return -ENODEV;
-
- lov = &exp->exp_obd->u.lov;
- rc = lov_prep_sync_set(exp, oinfo, start, end, &set);
- if (rc)
- return rc;
-
- CDEBUG(D_INFO, "fsync objid "DOSTID" [%#llx, %#llx]\n",
- POSTID(&set->set_oi->oi_oa->o_oi), start, end);
-
- list_for_each(pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
-
- rc = obd_sync(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
- &req->rq_oi, req->rq_oi.oi_policy.l_extent.start,
- req->rq_oi.oi_policy.l_extent.end, rqset);
- if (rc) {
- CERROR("%s: fsync objid "DOSTID" subobj "DOSTID
- " on OST idx %d: rc = %d\n",
- exp->exp_obd->obd_name,
- POSTID(&set->set_oi->oi_oa->o_oi),
- POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx,
- rc);
- break;
- }
- }
-
- /* If we are not waiting for responses on async requests, return. */
- if (rc || list_empty(&rqset->set_requests)) {
- int err = lov_fini_sync_set(set);
-
- return rc ?: err;
- }
-
- LASSERT(rqset->set_interpret == NULL);
- rqset->set_interpret = lov_sync_interpret;
- rqset->set_arg = (void *)set;
-
- return 0;
-}
-
-static int lov_brw_check(struct lov_obd *lov, struct obd_info *lov_oinfo,
- u32 oa_bufs, struct brw_page *pga)
-{
- struct obd_info oinfo = { { { 0 } } };
- int i, rc = 0;
-
- oinfo.oi_oa = lov_oinfo->oi_oa;
-
- /* The caller just wants to know if there's a chance that this
- * I/O can succeed */
- for (i = 0; i < oa_bufs; i++) {
- int stripe = lov_stripe_number(lov_oinfo->oi_md, pga[i].off);
- int ost = lov_oinfo->oi_md->lsm_oinfo[stripe]->loi_ost_idx;
- u64 start, end;
-
- if (!lov_stripe_intersects(lov_oinfo->oi_md, i, pga[i].off,
- pga[i].off + pga[i].count - 1,
- &start, &end))
- continue;
-
- if (!lov->lov_tgts[ost] || !lov->lov_tgts[ost]->ltd_active) {
- CDEBUG(D_HA, "lov idx %d inactive\n", ost);
- return -EIO;
- }
-
- rc = obd_brw(OBD_BRW_CHECK, lov->lov_tgts[ost]->ltd_exp, &oinfo,
- 1, &pga[i], NULL);
- if (rc)
- break;
- }
- return rc;
-}
-
-static int lov_brw(int cmd, struct obd_export *exp, struct obd_info *oinfo,
- u32 oa_bufs, struct brw_page *pga,
- struct obd_trans_info *oti)
-{
- struct lov_request_set *set;
- struct lov_request *req;
- struct list_head *pos;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- int err, rc = 0;
-
- ASSERT_LSM_MAGIC(oinfo->oi_md);
-
- if (cmd == OBD_BRW_CHECK) {
- rc = lov_brw_check(lov, oinfo, oa_bufs, pga);
- return rc;
- }
-
- rc = lov_prep_brw_set(exp, oinfo, oa_bufs, pga, oti, &set);
- if (rc)
- return rc;
-
- list_for_each(pos, &set->set_list) {
- struct obd_export *sub_exp;
- struct brw_page *sub_pga;
- req = list_entry(pos, struct lov_request, rq_link);
-
- sub_exp = lov->lov_tgts[req->rq_idx]->ltd_exp;
- sub_pga = set->set_pga + req->rq_pgaidx;
- rc = obd_brw(cmd, sub_exp, &req->rq_oi, req->rq_oabufs,
- sub_pga, oti);
- if (rc)
- break;
- lov_update_common_set(set, req, rc);
- }
-
- err = lov_fini_brw_set(set);
- if (!rc)
- rc = err;
- return rc;
-}
-
-static int lov_enqueue_interpret(struct ptlrpc_request_set *rqset,
- void *data, int rc)
-{
- struct lov_request_set *lovset = (struct lov_request_set *)data;
-
- rc = lov_fini_enqueue_set(lovset, lovset->set_ei->ei_mode, rc, rqset);
- return rc;
-}
-
-static int lov_enqueue(struct obd_export *exp, struct obd_info *oinfo,
- struct ldlm_enqueue_info *einfo,
- struct ptlrpc_request_set *rqset)
-{
- ldlm_mode_t mode = einfo->ei_mode;
- struct lov_request_set *set;
- struct lov_request *req;
- struct list_head *pos;
- struct lov_obd *lov;
- ldlm_error_t rc;
-
- LASSERT(oinfo);
- ASSERT_LSM_MAGIC(oinfo->oi_md);
- LASSERT(mode == (mode & -mode));
-
- /* we should never be asked to replay a lock this way. */
- LASSERT((oinfo->oi_flags & LDLM_FL_REPLAY) == 0);
-
- if (!exp || !exp->exp_obd)
- return -ENODEV;
-
- lov = &exp->exp_obd->u.lov;
- rc = lov_prep_enqueue_set(exp, oinfo, einfo, &set);
- if (rc)
- return rc;
-
- list_for_each(pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
-
- rc = obd_enqueue(lov->lov_tgts[req->rq_idx]->ltd_exp,
- &req->rq_oi, einfo, rqset);
- if (rc != ELDLM_OK)
- GOTO(out, rc);
- }
-
- if (rqset && !list_empty(&rqset->set_requests)) {
- LASSERT(rc == 0);
- LASSERT(rqset->set_interpret == NULL);
- rqset->set_interpret = lov_enqueue_interpret;
- rqset->set_arg = (void *)set;
- return rc;
- }
-out:
- rc = lov_fini_enqueue_set(set, mode, rc, rqset);
- return rc;
-}
-
-static int lov_change_cbdata(struct obd_export *exp,
- struct lov_stripe_md *lsm, ldlm_iterator_t it,
- void *data)
-{
- struct lov_obd *lov;
- int rc = 0, i;
-
- ASSERT_LSM_MAGIC(lsm);
-
- if (!exp || !exp->exp_obd)
- return -ENODEV;
-
- lov = &exp->exp_obd->u.lov;
- for (i = 0; i < lsm->lsm_stripe_count; i++) {
- struct lov_stripe_md submd;
- struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-
- if (!lov->lov_tgts[loi->loi_ost_idx]) {
- CDEBUG(D_HA, "lov idx %d NULL \n", loi->loi_ost_idx);
- continue;
- }
-
- submd.lsm_oi = loi->loi_oi;
- submd.lsm_stripe_count = 0;
- rc = obd_change_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
- &submd, it, data);
- }
- return rc;
-}
-
/* find any ldlm lock of the inode in lov
* return 0 not find
* 1 find one
return rc;
}
-static int lov_cancel(struct obd_export *exp, struct lov_stripe_md *lsm,
- __u32 mode, struct lustre_handle *lockh)
-{
- struct lov_request_set *set;
- struct obd_info oinfo;
- struct lov_request *req;
- struct list_head *pos;
- struct lov_obd *lov;
- struct lustre_handle *lov_lockhp;
- int err = 0, rc = 0;
-
- ASSERT_LSM_MAGIC(lsm);
-
- if (!exp || !exp->exp_obd)
- return -ENODEV;
-
- LASSERT(lockh);
- lov = &exp->exp_obd->u.lov;
- rc = lov_prep_cancel_set(exp, &oinfo, lsm, mode, lockh, &set);
- if (rc)
- return rc;
-
- list_for_each(pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
- lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
-
- rc = obd_cancel(lov->lov_tgts[req->rq_idx]->ltd_exp,
- req->rq_oi.oi_md, mode, lov_lockhp);
- rc = lov_update_common_set(set, req, rc);
- if (rc) {
- CERROR("%s: cancel objid "DOSTID" subobj "
- DOSTID" on OST idx %d: rc = %d\n",
- exp->exp_obd->obd_name, POSTID(&lsm->lsm_oi),
- POSTID(&req->rq_oi.oi_md->lsm_oi),
- req->rq_idx, rc);
- err = rc;
- }
-
- }
- lov_fini_cancel_set(set);
- return err;
-}
-
-static int lov_cancel_unused(struct obd_export *exp,
- struct lov_stripe_md *lsm,
- ldlm_cancel_flags_t flags, void *opaque)
-{
- struct lov_obd *lov;
- int rc = 0, i;
-
- if (!exp || !exp->exp_obd)
- return -ENODEV;
-
- lov = &exp->exp_obd->u.lov;
- if (lsm == NULL) {
- for (i = 0; i < lov->desc.ld_tgt_count; i++) {
- int err;
- if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
- continue;
-
- err = obd_cancel_unused(lov->lov_tgts[i]->ltd_exp, NULL,
- flags, opaque);
- if (!rc)
- rc = err;
- }
- return rc;
- }
-
- ASSERT_LSM_MAGIC(lsm);
-
- for (i = 0; i < lsm->lsm_stripe_count; i++) {
- struct lov_stripe_md submd;
- struct lov_oinfo *loi = lsm->lsm_oinfo[i];
- int idx = loi->loi_ost_idx;
- int err;
-
- if (!lov->lov_tgts[idx]) {
- CDEBUG(D_HA, "lov idx %d NULL\n", idx);
- continue;
- }
-
- if (!lov->lov_tgts[idx]->ltd_active)
- CDEBUG(D_HA, "lov idx %d inactive\n", idx);
-
- submd.lsm_oi = loi->loi_oi;
- submd.lsm_stripe_count = 0;
- err = obd_cancel_unused(lov->lov_tgts[idx]->ltd_exp,
- &submd, flags, opaque);
- if (err && lov->lov_tgts[idx]->ltd_active) {
- CERROR("%s: cancel unused objid "DOSTID
- " subobj "DOSTID" on OST idx %d: rc = %d\n",
- exp->exp_obd->obd_name, POSTID(&lsm->lsm_oi),
- POSTID(&loi->loi_oi), idx, err);
- if (!rc)
- rc = err;
- }
- }
- return rc;
-}
-
int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc)
{
struct lov_request_set *lovset = (struct lov_request_set *)data;
obd_ioctl_freedata(buf, len);
break;
}
- case LL_IOC_LOV_SETSTRIPE:
- rc = lov_setstripe(exp, len, karg, uarg);
- break;
case LL_IOC_LOV_GETSTRIPE:
rc = lov_getstripe(exp, karg, uarg);
break;
- case LL_IOC_LOV_SETEA:
- rc = lov_setea(exp, karg, uarg);
- break;
case OBD_IOC_QUOTACTL: {
struct if_quotactl *qctl = karg;
struct lov_tgt_desc *tgt = NULL;
return rc;
}
-static int lov_extent_calc(struct obd_export *exp, struct lov_stripe_md *lsm,
- int cmd, __u64 *offset)
-{
- __u32 ssize = lsm->lsm_stripe_size;
- __u64 start;
-
- start = *offset;
- lov_do_div64(start, ssize);
- start = start * ssize;
-
- CDEBUG(D_DLMTRACE, "offset %llu, stripe %u, start %llu, end %llu\n",
- *offset, ssize, start, start + ssize - 1);
- if (cmd == OBD_CALC_STRIPE_END) {
- *offset = start + ssize - 1;
- } else if (cmd == OBD_CALC_STRIPE_START) {
- *offset = start;
- } else {
- LBUG();
- }
-
- return 0;
-}
-
void lov_stripe_lock(struct lov_stripe_md *md)
{
LASSERT(md->lsm_lock_owner != current_pid());
.o_unpackmd = lov_unpackmd,
.o_create = lov_create,
.o_destroy = lov_destroy,
- .o_getattr = lov_getattr,
.o_getattr_async = lov_getattr_async,
- .o_setattr = lov_setattr,
.o_setattr_async = lov_setattr_async,
- .o_brw = lov_brw,
- .o_merge_lvb = lov_merge_lvb,
.o_adjust_kms = lov_adjust_kms,
- .o_punch = lov_punch,
- .o_sync = lov_sync,
- .o_enqueue = lov_enqueue,
- .o_change_cbdata = lov_change_cbdata,
.o_find_cbdata = lov_find_cbdata,
- .o_cancel = lov_cancel,
- .o_cancel_unused = lov_cancel_unused,
.o_iocontrol = lov_iocontrol,
.o_get_info = lov_get_info,
.o_set_info_async = lov_set_info_async,
- .o_extent_calc = lov_extent_calc,
.o_notify = lov_notify,
.o_pool_new = lov_pool_new,
.o_pool_rem = lov_pool_remove,
return lsm_size;
}
-static int __lov_setstripe(struct obd_export *exp, int max_lmm_size,
- struct lov_stripe_md **lsmp,
- struct lov_user_md *lump)
-{
- struct obd_device *obd = class_exp2obd(exp);
- struct lov_obd *lov = &obd->u.lov;
- char buffer[sizeof(struct lov_user_md_v3)];
- struct lov_user_md_v3 *lumv3 = (struct lov_user_md_v3 *)&buffer[0];
- struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&buffer[0];
- int lmm_magic;
- __u16 stripe_count;
- int rc;
- int cplen = 0;
-
- rc = lov_lum_swab_if_needed(lumv3, &lmm_magic, lump);
- if (rc)
- return rc;
-
- /* in the rest of the tests, as *lumv1 and lumv3 have the same
- * fields, we use lumv1 to avoid code duplication */
-
- if (lumv1->lmm_pattern == 0) {
- lumv1->lmm_pattern = lov->desc.ld_pattern ?
- lov->desc.ld_pattern : LOV_PATTERN_RAID0;
- }
-
- if (lov_pattern(lumv1->lmm_pattern) != LOV_PATTERN_RAID0) {
- CDEBUG(D_IOCTL, "bad userland stripe pattern: %#x\n",
- lumv1->lmm_pattern);
- return -EINVAL;
- }
-
- /* 64kB is the largest common page size we see (ia64), and matches the
- * check in lfs */
- if (lumv1->lmm_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
- CDEBUG(D_IOCTL, "stripe size %u not multiple of %u, fixing\n",
- lumv1->lmm_stripe_size, LOV_MIN_STRIPE_SIZE);
- lumv1->lmm_stripe_size = LOV_MIN_STRIPE_SIZE;
- }
-
- if ((lumv1->lmm_stripe_offset >= lov->desc.ld_tgt_count) &&
- (lumv1->lmm_stripe_offset !=
- (typeof(lumv1->lmm_stripe_offset))(-1))) {
- CDEBUG(D_IOCTL, "stripe offset %u > number of OSTs %u\n",
- lumv1->lmm_stripe_offset, lov->desc.ld_tgt_count);
- return -EINVAL;
- }
- stripe_count = lov_get_stripecnt(lov, lmm_magic,
- lumv1->lmm_stripe_count);
-
- if (max_lmm_size) {
- int max_stripes = (max_lmm_size -
- lov_mds_md_size(0, lmm_magic)) /
- sizeof(struct lov_ost_data_v1);
- if (unlikely(max_stripes < stripe_count)) {
- CDEBUG(D_IOCTL, "stripe count reset from %d to %d\n",
- stripe_count, max_stripes);
- stripe_count = max_stripes;
- }
- }
-
- if (lmm_magic == LOV_USER_MAGIC_V3) {
- struct pool_desc *pool;
-
- /* In the function below, .hs_keycmp resolves to
- * pool_hashkey_keycmp() */
- /* coverity[overrun-buffer-val] */
- pool = lov_find_pool(lov, lumv3->lmm_pool_name);
- if (pool != NULL) {
- if (lumv3->lmm_stripe_offset !=
- (typeof(lumv3->lmm_stripe_offset))(-1)) {
- rc = lov_check_index_in_pool(
- lumv3->lmm_stripe_offset, pool);
- if (rc < 0) {
- lov_pool_putref(pool);
- return -EINVAL;
- }
- }
-
- if (stripe_count > pool_tgt_count(pool))
- stripe_count = pool_tgt_count(pool);
-
- lov_pool_putref(pool);
- }
- }
-
- if (lumv1->lmm_pattern & LOV_PATTERN_F_RELEASED)
- stripe_count = 0;
-
- rc = lov_alloc_memmd(lsmp, stripe_count, lumv1->lmm_pattern, lmm_magic);
-
- if (rc >= 0) {
- (*lsmp)->lsm_oinfo[0]->loi_ost_idx = lumv1->lmm_stripe_offset;
- (*lsmp)->lsm_stripe_size = lumv1->lmm_stripe_size;
- if (lmm_magic == LOV_USER_MAGIC_V3) {
- cplen = strlcpy((*lsmp)->lsm_pool_name,
- lumv3->lmm_pool_name,
- sizeof((*lsmp)->lsm_pool_name));
- if (cplen >= sizeof((*lsmp)->lsm_pool_name))
- rc = -E2BIG;
- }
- rc = 0;
- }
-
- return rc;
-}
-
-/* Configure object striping information on a new file.
- *
- * @lmmu is a pointer to a user struct with one or more of the fields set to
- * indicate the application preference: lmm_stripe_count, lmm_stripe_size,
- * lmm_stripe_offset, and lmm_stripe_pattern. lmm_magic must be LOV_MAGIC.
- * @lsmp is a pointer to an in-core stripe MD that needs to be filled in.
- */
-int lov_setstripe(struct obd_export *exp, int max_lmm_size,
- struct lov_stripe_md **lsmp, struct lov_user_md *lump)
-{
- int rc;
- mm_segment_t seg;
-
- seg = get_fs();
- set_fs(KERNEL_DS);
-
- rc = __lov_setstripe(exp, max_lmm_size, lsmp, lump);
- set_fs(seg);
- return rc;
-}
-
-int lov_setea(struct obd_export *exp, struct lov_stripe_md **lsmp,
- struct lov_user_md *lump)
-{
- int i;
- int rc;
- struct obd_export *oexp;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- u64 last_id = 0;
- struct lov_user_ost_data_v1 *lmm_objects;
-
- if (lump->lmm_magic == LOV_USER_MAGIC_V3)
- lmm_objects = ((struct lov_user_md_v3 *)lump)->lmm_objects;
- else
- lmm_objects = lump->lmm_objects;
-
- for (i = 0; i < lump->lmm_stripe_count; i++) {
- __u32 len = sizeof(last_id);
- oexp = lov->lov_tgts[lmm_objects[i].l_ost_idx]->ltd_exp;
- rc = obd_get_info(NULL, oexp, sizeof(KEY_LAST_ID), KEY_LAST_ID,
- &len, &last_id, NULL);
- if (rc)
- return rc;
- if (ostid_id(&lmm_objects[i].l_ost_oi) > last_id) {
- CERROR("Setting EA for object > than last id on"
- " ost idx %d "DOSTID" > %lld \n",
- lmm_objects[i].l_ost_idx,
- POSTID(&lmm_objects[i].l_ost_oi), last_id);
- return -EINVAL;
- }
- }
-
- rc = lov_setstripe(exp, 0, lsmp, lump);
- if (rc)
- return rc;
-
- for (i = 0; i < lump->lmm_stripe_count; i++) {
- (*lsmp)->lsm_oinfo[i]->loi_ost_idx =
- lmm_objects[i].l_ost_idx;
- (*lsmp)->lsm_oinfo[i]->loi_oi = lmm_objects[i].l_ost_oi;
- }
- return 0;
-}
-
-
/* Retrieve object striping information.
*
* @lump is a pointer to an in-core struct with lmm_ost_count indicating
return rc;
}
-static int lov_update_enqueue_lov(struct obd_export *exp,
- struct lustre_handle *lov_lockhp,
- struct lov_oinfo *loi, __u64 flags, int idx,
- struct ost_id *oi, int rc)
-{
- struct lov_obd *lov = &exp->exp_obd->u.lov;
-
- if (rc != ELDLM_OK &&
- !(rc == ELDLM_LOCK_ABORTED && (flags & LDLM_FL_HAS_INTENT))) {
- memset(lov_lockhp, 0, sizeof(*lov_lockhp));
- if (lov->lov_tgts[idx] && lov->lov_tgts[idx]->ltd_active) {
- /* -EUSERS used by OST to report file contention */
- if (rc != -EINTR && rc != -EUSERS)
- CERROR("%s: enqueue objid "DOSTID" subobj"
- DOSTID" on OST idx %d: rc %d\n",
- exp->exp_obd->obd_name,
- POSTID(oi), POSTID(&loi->loi_oi),
- loi->loi_ost_idx, rc);
- } else
- rc = ELDLM_OK;
- }
- return rc;
-}
-
-int lov_update_enqueue_set(struct lov_request *req, __u32 mode, int rc)
-{
- struct lov_request_set *set = req->rq_rqset;
- struct lustre_handle *lov_lockhp;
- struct obd_info *oi = set->set_oi;
- struct lov_oinfo *loi;
-
- LASSERT(oi != NULL);
-
- lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
- loi = oi->oi_md->lsm_oinfo[req->rq_stripe];
-
- /* XXX LOV STACKING: OSC gets a copy, created in lov_prep_enqueue_set
- * and that copy can be arbitrarily out of date.
- *
- * The LOV API is due for a serious rewriting anyways, and this
- * can be addressed then. */
-
- lov_stripe_lock(oi->oi_md);
- osc_update_enqueue(lov_lockhp, loi, oi->oi_flags,
- &req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb, mode, rc);
- if (rc == ELDLM_LOCK_ABORTED && (oi->oi_flags & LDLM_FL_HAS_INTENT))
- memset(lov_lockhp, 0, sizeof(*lov_lockhp));
- rc = lov_update_enqueue_lov(set->set_exp, lov_lockhp, loi, oi->oi_flags,
- req->rq_idx, &oi->oi_md->lsm_oi, rc);
- lov_stripe_unlock(oi->oi_md);
- lov_update_set(set, req, rc);
- return rc;
-}
-
-/* The callback for osc_enqueue that updates lov info for every OSC request. */
-static int cb_update_enqueue(void *cookie, int rc)
-{
- struct obd_info *oinfo = cookie;
- struct ldlm_enqueue_info *einfo;
- struct lov_request *lovreq;
-
- lovreq = container_of(oinfo, struct lov_request, rq_oi);
- einfo = lovreq->rq_rqset->set_ei;
- return lov_update_enqueue_set(lovreq, einfo->ei_mode, rc);
-}
-
-static int enqueue_done(struct lov_request_set *set, __u32 mode)
-{
- struct lov_request *req;
- struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
- int completes = atomic_read(&set->set_completes);
- int rc = 0;
-
- /* enqueue/match success, just return */
- if (completes && completes == atomic_read(&set->set_success))
- return 0;
-
- /* cancel enqueued/matched locks */
- list_for_each_entry(req, &set->set_list, rq_link) {
- struct lustre_handle *lov_lockhp;
-
- if (!req->rq_complete || req->rq_rc)
- continue;
-
- lov_lockhp = set->set_lockh->llh_handles + req->rq_stripe;
- LASSERT(lov_lockhp);
- if (!lustre_handle_is_used(lov_lockhp))
- continue;
-
- rc = obd_cancel(lov->lov_tgts[req->rq_idx]->ltd_exp,
- req->rq_oi.oi_md, mode, lov_lockhp);
- if (rc && lov->lov_tgts[req->rq_idx] &&
- lov->lov_tgts[req->rq_idx]->ltd_active)
- CERROR("%s: cancelling obdjid "DOSTID" on OST"
- "idx %d error: rc = %d\n",
- set->set_exp->exp_obd->obd_name,
- POSTID(&req->rq_oi.oi_md->lsm_oi),
- req->rq_idx, rc);
- }
- if (set->set_lockh)
- lov_llh_put(set->set_lockh);
- return rc;
-}
-
-int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc,
- struct ptlrpc_request_set *rqset)
-{
- int ret = 0;
-
- if (set == NULL)
- return 0;
- LASSERT(set->set_exp);
- /* Do enqueue_done only for sync requests and if any request
- * succeeded. */
- if (!rqset) {
- if (rc)
- atomic_set(&set->set_completes, 0);
- ret = enqueue_done(set, mode);
- } else if (set->set_lockh)
- lov_llh_put(set->set_lockh);
-
- lov_put_reqset(set);
-
- return rc ? rc : ret;
-}
-
-static void lov_llh_addref(void *llhp)
-{
- struct lov_lock_handles *llh = llhp;
-
- atomic_inc(&llh->llh_refcount);
- CDEBUG(D_INFO, "GETting llh %p : new refcount %d\n", llh,
- atomic_read(&llh->llh_refcount));
-}
-
-static struct portals_handle_ops lov_handle_ops = {
- .hop_addref = lov_llh_addref,
- .hop_free = NULL,
-};
-
-static struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm)
-{
- struct lov_lock_handles *llh;
-
- OBD_ALLOC(llh, sizeof(*llh) +
- sizeof(*llh->llh_handles) * lsm->lsm_stripe_count);
- if (llh == NULL)
- return NULL;
-
- atomic_set(&llh->llh_refcount, 2);
- llh->llh_stripe_count = lsm->lsm_stripe_count;
- INIT_LIST_HEAD(&llh->llh_handle.h_link);
- class_handle_hash(&llh->llh_handle, &lov_handle_ops);
-
- return llh;
-}
-
-int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo,
- struct ldlm_enqueue_info *einfo,
- struct lov_request_set **reqset)
-{
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_request_set *set;
- int i, rc = 0;
-
- OBD_ALLOC(set, sizeof(*set));
- if (set == NULL)
- return -ENOMEM;
- lov_init_set(set);
-
- set->set_exp = exp;
- set->set_oi = oinfo;
- set->set_ei = einfo;
- set->set_lockh = lov_llh_new(oinfo->oi_md);
- if (set->set_lockh == NULL)
- GOTO(out_set, rc = -ENOMEM);
- oinfo->oi_lockh->cookie = set->set_lockh->llh_handle.h_cookie;
-
- for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
- struct lov_oinfo *loi;
- struct lov_request *req;
- u64 start, end;
-
- loi = oinfo->oi_md->lsm_oinfo[i];
- if (!lov_stripe_intersects(oinfo->oi_md, i,
- oinfo->oi_policy.l_extent.start,
- oinfo->oi_policy.l_extent.end,
- &start, &end))
- continue;
-
- if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- continue;
- }
-
- OBD_ALLOC(req, sizeof(*req));
- if (req == NULL)
- GOTO(out_set, rc = -ENOMEM);
-
- req->rq_buflen = sizeof(*req->rq_oi.oi_md) +
- sizeof(struct lov_oinfo *) +
- sizeof(struct lov_oinfo);
- OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
- if (req->rq_oi.oi_md == NULL) {
- OBD_FREE(req, sizeof(*req));
- GOTO(out_set, rc = -ENOMEM);
- }
- req->rq_oi.oi_md->lsm_oinfo[0] =
- ((void *)req->rq_oi.oi_md) + sizeof(*req->rq_oi.oi_md) +
- sizeof(struct lov_oinfo *);
-
- /* Set lov request specific parameters. */
- req->rq_oi.oi_lockh = set->set_lockh->llh_handles + i;
- req->rq_oi.oi_cb_up = cb_update_enqueue;
- req->rq_oi.oi_flags = oinfo->oi_flags;
-
- LASSERT(req->rq_oi.oi_lockh);
-
- req->rq_oi.oi_policy.l_extent.gid =
- oinfo->oi_policy.l_extent.gid;
- req->rq_oi.oi_policy.l_extent.start = start;
- req->rq_oi.oi_policy.l_extent.end = end;
-
- req->rq_idx = loi->loi_ost_idx;
- req->rq_stripe = i;
-
- /* XXX LOV STACKING: submd should be from the subobj */
- req->rq_oi.oi_md->lsm_oi = loi->loi_oi;
- req->rq_oi.oi_md->lsm_stripe_count = 0;
- req->rq_oi.oi_md->lsm_oinfo[0]->loi_kms_valid =
- loi->loi_kms_valid;
- req->rq_oi.oi_md->lsm_oinfo[0]->loi_kms = loi->loi_kms;
- req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb = loi->loi_lvb;
-
- lov_set_add_req(req, set);
- }
- if (!set->set_count)
- GOTO(out_set, rc = -EIO);
- *reqset = set;
- return 0;
-out_set:
- lov_fini_enqueue_set(set, einfo->ei_mode, rc, NULL);
- return rc;
-}
-
-int lov_fini_match_set(struct lov_request_set *set, __u32 mode, __u64 flags)
-{
- int rc = 0;
-
- if (set == NULL)
- return 0;
- LASSERT(set->set_exp);
- rc = enqueue_done(set, mode);
- if ((set->set_count == atomic_read(&set->set_success)) &&
- (flags & LDLM_FL_TEST_LOCK))
- lov_llh_put(set->set_lockh);
-
- lov_put_reqset(set);
-
- return rc;
-}
-
-int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo,
- struct lov_stripe_md *lsm, ldlm_policy_data_t *policy,
- __u32 mode, struct lustre_handle *lockh,
- struct lov_request_set **reqset)
-{
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- struct lov_request_set *set;
- int i, rc = 0;
-
- OBD_ALLOC(set, sizeof(*set));
- if (set == NULL)
- return -ENOMEM;
- lov_init_set(set);
-
- set->set_exp = exp;
- set->set_oi = oinfo;
- set->set_oi->oi_md = lsm;
- set->set_lockh = lov_llh_new(lsm);
- if (set->set_lockh == NULL)
- GOTO(out_set, rc = -ENOMEM);
- lockh->cookie = set->set_lockh->llh_handle.h_cookie;
-
- for (i = 0; i < lsm->lsm_stripe_count; i++) {
- struct lov_oinfo *loi;
- struct lov_request *req;
- u64 start, end;
-
- loi = lsm->lsm_oinfo[i];
- if (!lov_stripe_intersects(lsm, i, policy->l_extent.start,
- policy->l_extent.end, &start, &end))
- continue;
-
- /* FIXME raid1 should grace this error */
- if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- GOTO(out_set, rc = -EIO);
- }
-
- OBD_ALLOC(req, sizeof(*req));
- if (req == NULL)
- GOTO(out_set, rc = -ENOMEM);
-
- req->rq_buflen = sizeof(*req->rq_oi.oi_md);
- OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
- if (req->rq_oi.oi_md == NULL) {
- OBD_FREE(req, sizeof(*req));
- GOTO(out_set, rc = -ENOMEM);
- }
-
- req->rq_oi.oi_policy.l_extent.start = start;
- req->rq_oi.oi_policy.l_extent.end = end;
- req->rq_oi.oi_policy.l_extent.gid = policy->l_extent.gid;
-
- req->rq_idx = loi->loi_ost_idx;
- req->rq_stripe = i;
-
- /* XXX LOV STACKING: submd should be from the subobj */
- req->rq_oi.oi_md->lsm_oi = loi->loi_oi;
- req->rq_oi.oi_md->lsm_stripe_count = 0;
-
- lov_set_add_req(req, set);
- }
- if (!set->set_count)
- GOTO(out_set, rc = -EIO);
- *reqset = set;
- return rc;
-out_set:
- lov_fini_match_set(set, mode, 0);
- return rc;
-}
-
-int lov_fini_cancel_set(struct lov_request_set *set)
-{
- int rc = 0;
-
- if (set == NULL)
- return 0;
-
- LASSERT(set->set_exp);
- if (set->set_lockh)
- lov_llh_put(set->set_lockh);
-
- lov_put_reqset(set);
-
- return rc;
-}
-
-int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo,
- struct lov_stripe_md *lsm, __u32 mode,
- struct lustre_handle *lockh,
- struct lov_request_set **reqset)
-{
- struct lov_request_set *set;
- int i, rc = 0;
-
- OBD_ALLOC(set, sizeof(*set));
- if (set == NULL)
- return -ENOMEM;
- lov_init_set(set);
-
- set->set_exp = exp;
- set->set_oi = oinfo;
- set->set_oi->oi_md = lsm;
- set->set_lockh = lov_handle2llh(lockh);
- if (set->set_lockh == NULL) {
- CERROR("LOV: invalid lov lock handle %p\n", lockh);
- GOTO(out_set, rc = -EINVAL);
- }
- lockh->cookie = set->set_lockh->llh_handle.h_cookie;
-
- for (i = 0; i < lsm->lsm_stripe_count; i++) {
- struct lov_request *req;
- struct lustre_handle *lov_lockhp;
- struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-
- lov_lockhp = set->set_lockh->llh_handles + i;
- if (!lustre_handle_is_used(lov_lockhp)) {
- CDEBUG(D_INFO, "lov idx %d subobj "DOSTID" no lock\n",
- loi->loi_ost_idx, POSTID(&loi->loi_oi));
- continue;
- }
-
- OBD_ALLOC(req, sizeof(*req));
- if (req == NULL)
- GOTO(out_set, rc = -ENOMEM);
-
- req->rq_buflen = sizeof(*req->rq_oi.oi_md);
- OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
- if (req->rq_oi.oi_md == NULL) {
- OBD_FREE(req, sizeof(*req));
- GOTO(out_set, rc = -ENOMEM);
- }
-
- req->rq_idx = loi->loi_ost_idx;
- req->rq_stripe = i;
-
- /* XXX LOV STACKING: submd should be from the subobj */
- req->rq_oi.oi_md->lsm_oi = loi->loi_oi;
- req->rq_oi.oi_md->lsm_stripe_count = 0;
-
- lov_set_add_req(req, set);
- }
- if (!set->set_count)
- GOTO(out_set, rc = -EIO);
- *reqset = set;
- return rc;
-out_set:
- lov_fini_cancel_set(set);
- return rc;
-}
static int common_attr_done(struct lov_request_set *set)
{
struct list_head *pos;
}
-static int brw_done(struct lov_request_set *set)
-{
- struct lov_stripe_md *lsm = set->set_oi->oi_md;
- struct lov_oinfo *loi = NULL;
- struct list_head *pos;
- struct lov_request *req;
-
- list_for_each(pos, &set->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
-
- if (!req->rq_complete || req->rq_rc)
- continue;
-
- loi = lsm->lsm_oinfo[req->rq_stripe];
-
- if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLBLOCKS)
- loi->loi_lvb.lvb_blocks = req->rq_oi.oi_oa->o_blocks;
- }
-
- return 0;
-}
-
-int lov_fini_brw_set(struct lov_request_set *set)
-{
- int rc = 0;
-
- if (set == NULL)
- return 0;
- LASSERT(set->set_exp);
- if (atomic_read(&set->set_completes)) {
- rc = brw_done(set);
- /* FIXME update qos data here */
- }
- lov_put_reqset(set);
-
- return rc;
-}
-
-int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo,
- u32 oa_bufs, struct brw_page *pga,
- struct obd_trans_info *oti,
- struct lov_request_set **reqset)
-{
- struct {
- u32 index;
- u32 count;
- u32 off;
- } *info = NULL;
- struct lov_request_set *set;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- int rc = 0, i, shift;
-
- OBD_ALLOC(set, sizeof(*set));
- if (set == NULL)
- return -ENOMEM;
- lov_init_set(set);
-
- set->set_exp = exp;
- set->set_oti = oti;
- set->set_oi = oinfo;
- set->set_oabufs = oa_bufs;
- OBD_ALLOC_LARGE(set->set_pga, oa_bufs * sizeof(*set->set_pga));
- if (!set->set_pga)
- GOTO(out, rc = -ENOMEM);
-
- OBD_ALLOC_LARGE(info, sizeof(*info) * oinfo->oi_md->lsm_stripe_count);
- if (!info)
- GOTO(out, rc = -ENOMEM);
-
- /* calculate the page count for each stripe */
- for (i = 0; i < oa_bufs; i++) {
- int stripe = lov_stripe_number(oinfo->oi_md, pga[i].off);
- info[stripe].count++;
- }
-
- /* alloc and initialize lov request */
- shift = 0;
- for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
- struct lov_oinfo *loi = NULL;
- struct lov_request *req;
-
- if (info[i].count == 0)
- continue;
-
- loi = oinfo->oi_md->lsm_oinfo[i];
- if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- GOTO(out, rc = -EIO);
- }
-
- OBD_ALLOC(req, sizeof(*req));
- if (req == NULL)
- GOTO(out, rc = -ENOMEM);
-
- OBDO_ALLOC(req->rq_oi.oi_oa);
- if (req->rq_oi.oi_oa == NULL) {
- OBD_FREE(req, sizeof(*req));
- GOTO(out, rc = -ENOMEM);
- }
-
- if (oinfo->oi_oa) {
- memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
- sizeof(*req->rq_oi.oi_oa));
- }
- req->rq_oi.oi_oa->o_oi = loi->loi_oi;
- req->rq_oi.oi_oa->o_stripe_idx = i;
-
- req->rq_buflen = sizeof(*req->rq_oi.oi_md);
- OBD_ALLOC_LARGE(req->rq_oi.oi_md, req->rq_buflen);
- if (req->rq_oi.oi_md == NULL) {
- OBDO_FREE(req->rq_oi.oi_oa);
- OBD_FREE(req, sizeof(*req));
- GOTO(out, rc = -ENOMEM);
- }
-
- req->rq_idx = loi->loi_ost_idx;
- req->rq_stripe = i;
-
- /* XXX LOV STACKING */
- req->rq_oi.oi_md->lsm_oi = loi->loi_oi;
- req->rq_oabufs = info[i].count;
- req->rq_pgaidx = shift;
- shift += req->rq_oabufs;
-
- /* remember the index for sort brw_page array */
- info[i].index = req->rq_pgaidx;
-
- req->rq_oi.oi_capa = oinfo->oi_capa;
-
- lov_set_add_req(req, set);
- }
- if (!set->set_count)
- GOTO(out, rc = -EIO);
-
- /* rotate & sort the brw_page array */
- for (i = 0; i < oa_bufs; i++) {
- int stripe = lov_stripe_number(oinfo->oi_md, pga[i].off);
-
- shift = info[stripe].index + info[stripe].off;
- LASSERT(shift < oa_bufs);
- set->set_pga[shift] = pga[i];
- lov_stripe_offset(oinfo->oi_md, pga[i].off, stripe,
- &set->set_pga[shift].off);
- info[stripe].off++;
- }
-out:
- if (info)
- OBD_FREE_LARGE(info,
- sizeof(*info) * oinfo->oi_md->lsm_stripe_count);
-
- if (rc == 0)
- *reqset = set;
- else
- lov_fini_brw_set(set);
-
- return rc;
-}
-
int lov_fini_getattr_set(struct lov_request_set *set)
{
int rc = 0;
return rc;
}
-int lov_fini_punch_set(struct lov_request_set *set)
-{
- int rc = 0;
-
- if (set == NULL)
- return 0;
- LASSERT(set->set_exp);
- if (atomic_read(&set->set_completes)) {
- rc = -EIO;
- /* FIXME update qos data here */
- if (atomic_read(&set->set_success))
- rc = common_attr_done(set);
- }
-
- lov_put_reqset(set);
-
- return rc;
-}
-
-int lov_update_punch_set(struct lov_request_set *set,
- struct lov_request *req, int rc)
-{
- struct lov_obd *lov = &req->rq_rqset->set_exp->exp_obd->u.lov;
- struct lov_stripe_md *lsm = req->rq_rqset->set_oi->oi_md;
-
- lov_update_set(set, req, rc);
-
- /* grace error on inactive ost */
- if (rc && !lov->lov_tgts[req->rq_idx]->ltd_active)
- rc = 0;
-
- if (rc == 0) {
- lov_stripe_lock(lsm);
- if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLBLOCKS) {
- lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_blocks =
- req->rq_oi.oi_oa->o_blocks;
- }
-
- lov_stripe_unlock(lsm);
- }
-
- return rc;
-}
-
-/* The callback for osc_punch that finalizes a request info when a response
- * is received. */
-static int cb_update_punch(void *cookie, int rc)
-{
- struct obd_info *oinfo = cookie;
- struct lov_request *lovreq;
-
- lovreq = container_of(oinfo, struct lov_request, rq_oi);
- return lov_update_punch_set(lovreq->rq_rqset, lovreq, rc);
-}
-
-int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo,
- struct obd_trans_info *oti,
- struct lov_request_set **reqset)
-{
- struct lov_request_set *set;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- int rc = 0, i;
-
- OBD_ALLOC(set, sizeof(*set));
- if (set == NULL)
- return -ENOMEM;
- lov_init_set(set);
-
- set->set_oi = oinfo;
- set->set_exp = exp;
-
- for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
- struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
- struct lov_request *req;
- u64 rs, re;
-
- if (!lov_stripe_intersects(oinfo->oi_md, i,
- oinfo->oi_policy.l_extent.start,
- oinfo->oi_policy.l_extent.end,
- &rs, &re))
- continue;
-
- if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- GOTO(out_set, rc = -EIO);
- }
-
- OBD_ALLOC(req, sizeof(*req));
- if (req == NULL)
- GOTO(out_set, rc = -ENOMEM);
- req->rq_stripe = i;
- req->rq_idx = loi->loi_ost_idx;
-
- OBDO_ALLOC(req->rq_oi.oi_oa);
- if (req->rq_oi.oi_oa == NULL) {
- OBD_FREE(req, sizeof(*req));
- GOTO(out_set, rc = -ENOMEM);
- }
- memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
- sizeof(*req->rq_oi.oi_oa));
- req->rq_oi.oi_oa->o_oi = loi->loi_oi;
- req->rq_oi.oi_oa->o_valid |= OBD_MD_FLGROUP;
-
- req->rq_oi.oi_oa->o_stripe_idx = i;
- req->rq_oi.oi_cb_up = cb_update_punch;
-
- req->rq_oi.oi_policy.l_extent.start = rs;
- req->rq_oi.oi_policy.l_extent.end = re;
- req->rq_oi.oi_policy.l_extent.gid = -1;
-
- req->rq_oi.oi_capa = oinfo->oi_capa;
-
- lov_set_add_req(req, set);
- }
- if (!set->set_count)
- GOTO(out_set, rc = -EIO);
- *reqset = set;
- return rc;
-out_set:
- lov_fini_punch_set(set);
- return rc;
-}
-
-int lov_fini_sync_set(struct lov_request_set *set)
-{
- int rc = 0;
-
- if (set == NULL)
- return 0;
- LASSERT(set->set_exp);
- if (atomic_read(&set->set_completes)) {
- if (!atomic_read(&set->set_success))
- rc = -EIO;
- /* FIXME update qos data here */
- }
-
- lov_put_reqset(set);
-
- return rc;
-}
-
-/* The callback for osc_sync that finalizes a request info when a
- * response is received. */
-static int cb_sync_update(void *cookie, int rc)
-{
- struct obd_info *oinfo = cookie;
- struct lov_request *lovreq;
-
- lovreq = container_of(oinfo, struct lov_request, rq_oi);
- return lov_update_common_set(lovreq->rq_rqset, lovreq, rc);
-}
-
-int lov_prep_sync_set(struct obd_export *exp, struct obd_info *oinfo,
- u64 start, u64 end,
- struct lov_request_set **reqset)
-{
- struct lov_request_set *set;
- struct lov_obd *lov = &exp->exp_obd->u.lov;
- int rc = 0, i;
-
- OBD_ALLOC_PTR(set);
- if (set == NULL)
- return -ENOMEM;
- lov_init_set(set);
-
- set->set_exp = exp;
- set->set_oi = oinfo;
-
- for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
- struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
- struct lov_request *req;
- u64 rs, re;
-
- if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
- CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
- continue;
- }
-
- if (!lov_stripe_intersects(oinfo->oi_md, i, start, end, &rs,
- &re))
- continue;
-
- OBD_ALLOC_PTR(req);
- if (req == NULL)
- GOTO(out_set, rc = -ENOMEM);
- req->rq_stripe = i;
- req->rq_idx = loi->loi_ost_idx;
-
- OBDO_ALLOC(req->rq_oi.oi_oa);
- if (req->rq_oi.oi_oa == NULL) {
- OBD_FREE(req, sizeof(*req));
- GOTO(out_set, rc = -ENOMEM);
- }
- *req->rq_oi.oi_oa = *oinfo->oi_oa;
- req->rq_oi.oi_oa->o_oi = loi->loi_oi;
- req->rq_oi.oi_oa->o_stripe_idx = i;
-
- req->rq_oi.oi_policy.l_extent.start = rs;
- req->rq_oi.oi_policy.l_extent.end = re;
- req->rq_oi.oi_policy.l_extent.gid = -1;
- req->rq_oi.oi_cb_up = cb_sync_update;
-
- lov_set_add_req(req, set);
- }
- if (!set->set_count)
- GOTO(out_set, rc = -EIO);
- *reqset = set;
- return rc;
-out_set:
- lov_fini_sync_set(set);
- return rc;
-}
-
#define LOV_U64_MAX ((__u64)~0ULL)
#define LOV_SUM_MAX(tot, add) \
do { \
projects / firefly-linux-kernel-4.4.55.git / commitdiff