From 5a659b6370665cc52d294c6024b9c17f53cb6c94 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Fri, 5 Sep 2014 15:08:08 -0500 Subject: [PATCH] staging/lustre/osc: remove unused OBD methods Remove the unused OBD device methods: osc_brw() osc_cancel() osc_cancel_unused() osc_change_cbdata() osc_enqueue() osc_punch() osc_sync() and their supporting functions. Signed-off-by: John L. Hammond Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/osc/osc_request.c | 264 ------------------------ 1 file changed, 264 deletions(-) diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index d9f7249..86e9e97 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -537,17 +537,6 @@ int osc_punch_base(struct obd_export *exp, struct obd_info *oinfo, return 0; } -static int osc_punch(const struct lu_env *env, struct obd_export *exp, - struct obd_info *oinfo, struct obd_trans_info *oti, - struct ptlrpc_request_set *rqset) -{ - oinfo->oi_oa->o_size = oinfo->oi_policy.l_extent.start; - oinfo->oi_oa->o_blocks = oinfo->oi_policy.l_extent.end; - oinfo->oi_oa->o_valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS; - return osc_punch_base(exp, oinfo, - oinfo->oi_cb_up, oinfo, rqset); -} - static int osc_sync_interpret(const struct lu_env *env, struct ptlrpc_request *req, void *arg, int rc) @@ -614,22 +603,6 @@ int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo, return 0; } -static int osc_sync(const struct lu_env *env, struct obd_export *exp, - struct obd_info *oinfo, u64 start, u64 end, - struct ptlrpc_request_set *set) -{ - if (!oinfo->oi_oa) { - CDEBUG(D_INFO, "oa NULL\n"); - return -EINVAL; - } - - oinfo->oi_oa->o_size = start; - oinfo->oi_oa->o_blocks = end; - oinfo->oi_oa->o_valid |= (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS); - - return osc_sync_base(exp, oinfo, oinfo->oi_cb_up, oinfo, set); -} - /* Find and cancel locally locks matched by @mode in the resource found by * @objid. Found locks are added into @cancel list. Returns the amount of * locks added to @cancels list. */ @@ -1618,74 +1591,6 @@ out: return rc; } -static int osc_brw_internal(int cmd, struct obd_export *exp, struct obdo *oa, - struct lov_stripe_md *lsm, - u32 page_count, struct brw_page **pga, - struct obd_capa *ocapa) -{ - struct ptlrpc_request *req; - int rc; - wait_queue_head_t waitq; - int generation, resends = 0; - struct l_wait_info lwi; - - init_waitqueue_head(&waitq); - generation = exp->exp_obd->u.cli.cl_import->imp_generation; - -restart_bulk: - rc = osc_brw_prep_request(cmd, &exp->exp_obd->u.cli, oa, lsm, - page_count, pga, &req, ocapa, 0, resends); - if (rc != 0) - return rc; - - if (resends) { - req->rq_generation_set = 1; - req->rq_import_generation = generation; - req->rq_sent = get_seconds() + resends; - } - - rc = ptlrpc_queue_wait(req); - - if (rc == -ETIMEDOUT && req->rq_resend) { - DEBUG_REQ(D_HA, req, "BULK TIMEOUT"); - ptlrpc_req_finished(req); - goto restart_bulk; - } - - rc = osc_brw_fini_request(req, rc); - - ptlrpc_req_finished(req); - /* When server return -EINPROGRESS, client should always retry - * regardless of the number of times the bulk was resent already.*/ - if (osc_recoverable_error(rc)) { - resends++; - if (rc != -EINPROGRESS && - !client_should_resend(resends, &exp->exp_obd->u.cli)) { - CERROR("%s: too many resend retries for object: " - ""DOSTID", rc = %d.\n", exp->exp_obd->obd_name, - POSTID(&oa->o_oi), rc); - goto out; - } - if (generation != - exp->exp_obd->u.cli.cl_import->imp_generation) { - CDEBUG(D_HA, "%s: resend cross eviction for object: " - ""DOSTID", rc = %d.\n", exp->exp_obd->obd_name, - POSTID(&oa->o_oi), rc); - goto out; - } - - lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), NULL, NULL, - NULL); - l_wait_event(waitq, 0, &lwi); - - goto restart_bulk; - } -out: - if (rc == -EAGAIN || rc == -EINPROGRESS) - rc = -EIO; - return rc; -} - static int osc_brw_redo_request(struct ptlrpc_request *request, struct osc_brw_async_args *aa, int rc) { @@ -1789,125 +1694,12 @@ static void sort_brw_pages(struct brw_page **array, int num) } while (stride > 1); } -static u32 max_unfragmented_pages(struct brw_page **pg, u32 pages) -{ - int count = 1; - int offset; - int i = 0; - - LASSERT (pages > 0); - offset = pg[i]->off & ~CFS_PAGE_MASK; - - for (;;) { - pages--; - if (pages == 0) /* that's all */ - return count; - - if (offset + pg[i]->count < PAGE_CACHE_SIZE) - return count; /* doesn't end on page boundary */ - - i++; - offset = pg[i]->off & ~CFS_PAGE_MASK; - if (offset != 0) /* doesn't start on page boundary */ - return count; - - count++; - } -} - -static struct brw_page **osc_build_ppga(struct brw_page *pga, u32 count) -{ - struct brw_page **ppga; - int i; - - OBD_ALLOC(ppga, sizeof(*ppga) * count); - if (ppga == NULL) - return NULL; - - for (i = 0; i < count; i++) - ppga[i] = pga + i; - return ppga; -} - static void osc_release_ppga(struct brw_page **ppga, u32 count) { LASSERT(ppga != NULL); OBD_FREE(ppga, sizeof(*ppga) * count); } -static int osc_brw(int cmd, struct obd_export *exp, struct obd_info *oinfo, - u32 page_count, struct brw_page *pga, - struct obd_trans_info *oti) -{ - struct obdo *saved_oa = NULL; - struct brw_page **ppga, **orig; - struct obd_import *imp = class_exp2cliimp(exp); - struct client_obd *cli; - int rc, page_count_orig; - - LASSERT((imp != NULL) && (imp->imp_obd != NULL)); - cli = &imp->imp_obd->u.cli; - - if (cmd & OBD_BRW_CHECK) { - /* The caller just wants to know if there's a chance that this - * I/O can succeed */ - - if (imp->imp_invalid) - return -EIO; - return 0; - } - - /* test_brw with a failed create can trip this, maybe others. */ - LASSERT(cli->cl_max_pages_per_rpc); - - rc = 0; - - orig = ppga = osc_build_ppga(pga, page_count); - if (ppga == NULL) - return -ENOMEM; - page_count_orig = page_count; - - sort_brw_pages(ppga, page_count); - while (page_count) { - u32 pages_per_brw; - - if (page_count > cli->cl_max_pages_per_rpc) - pages_per_brw = cli->cl_max_pages_per_rpc; - else - pages_per_brw = page_count; - - pages_per_brw = max_unfragmented_pages(ppga, pages_per_brw); - - if (saved_oa != NULL) { - /* restore previously saved oa */ - *oinfo->oi_oa = *saved_oa; - } else if (page_count > pages_per_brw) { - /* save a copy of oa (brw will clobber it) */ - OBDO_ALLOC(saved_oa); - if (saved_oa == NULL) - GOTO(out, rc = -ENOMEM); - *saved_oa = *oinfo->oi_oa; - } - - rc = osc_brw_internal(cmd, exp, oinfo->oi_oa, oinfo->oi_md, - pages_per_brw, ppga, oinfo->oi_capa); - - if (rc != 0) - break; - - page_count -= pages_per_brw; - ppga += pages_per_brw; - } - -out: - osc_release_ppga(orig, page_count_orig); - - if (saved_oa != NULL) - OBDO_FREE(saved_oa); - - return rc; -} - static int brw_interpret(const struct lu_env *env, struct ptlrpc_request *req, void *data, int rc) { @@ -2267,17 +2059,6 @@ static int osc_set_data_with_check(struct lustre_handle *lockh, return set; } -static int osc_change_cbdata(struct obd_export *exp, struct lov_stripe_md *lsm, - ldlm_iterator_t replace, void *data) -{ - struct ldlm_res_id res_id; - struct obd_device *obd = class_exp2obd(exp); - - ostid_build_res_name(&lsm->lsm_oi, &res_id); - ldlm_resource_iterate(obd->obd_namespace, &res_id, replace, data); - return 0; -} - /* find any ldlm lock of the inode in osc * return 0 not find * 1 find one @@ -2590,22 +2371,6 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, return rc; } -static int osc_enqueue(struct obd_export *exp, struct obd_info *oinfo, - struct ldlm_enqueue_info *einfo, - struct ptlrpc_request_set *rqset) -{ - struct ldlm_res_id res_id; - int rc; - - ostid_build_res_name(&oinfo->oi_md->lsm_oi, &res_id); - rc = osc_enqueue_base(exp, &res_id, &oinfo->oi_flags, &oinfo->oi_policy, - &oinfo->oi_md->lsm_oinfo[0]->loi_lvb, - oinfo->oi_md->lsm_oinfo[0]->loi_kms_valid, - oinfo->oi_cb_up, oinfo, einfo, oinfo->oi_lockh, - rqset, rqset != NULL, 0); - return rc; -} - int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, __u32 type, ldlm_policy_data_t *policy, __u32 mode, __u64 *flags, void *data, struct lustre_handle *lockh, @@ -2659,28 +2424,6 @@ int osc_cancel_base(struct lustre_handle *lockh, __u32 mode) return 0; } -static int osc_cancel(struct obd_export *exp, struct lov_stripe_md *md, - __u32 mode, struct lustre_handle *lockh) -{ - return osc_cancel_base(lockh, mode); -} - -static int osc_cancel_unused(struct obd_export *exp, - struct lov_stripe_md *lsm, - ldlm_cancel_flags_t flags, - void *opaque) -{ - struct obd_device *obd = class_exp2obd(exp); - struct ldlm_res_id res_id, *resp = NULL; - - if (lsm != NULL) { - ostid_build_res_name(&lsm->lsm_oi, &res_id); - resp = &res_id; - } - - return ldlm_cli_cancel_unused(obd->obd_namespace, resp, flags, opaque); -} - static int osc_statfs_interpret(const struct lu_env *env, struct ptlrpc_request *req, struct osc_async_args *aa, int rc) @@ -3589,14 +3332,7 @@ struct obd_ops osc_obd_ops = { .o_getattr_async = osc_getattr_async, .o_setattr = osc_setattr, .o_setattr_async = osc_setattr_async, - .o_brw = osc_brw, - .o_punch = osc_punch, - .o_sync = osc_sync, - .o_enqueue = osc_enqueue, - .o_change_cbdata = osc_change_cbdata, .o_find_cbdata = osc_find_cbdata, - .o_cancel = osc_cancel, - .o_cancel_unused = osc_cancel_unused, .o_iocontrol = osc_iocontrol, .o_get_info = osc_get_info, .o_set_info_async = osc_set_info_async, -- 2.7.4