From: Li Xi <lixi@xxxxxxx> spin_is_locked() is always false when the platform is uniprocessor and CONFIG_DEBUG_SPINLOCK is not enabled. This patch replaces its assertion by assert_spin_locked(). Signed-off-by: Li Xi <lixi@xxxxxxx> Signed-off-by: James Simmons <uja.ornl@xxxxxxxxx> Reviewed-on: http://review.whamcloud.com/8144 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4199 Reviewed-by: Alexey Lyashkov <alexey_lyashkov@xxxxxxxxxxx> Reviewed-by: Andreas Dilger <andreas.dilger@xxxxxxxxx> Signed-off-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> --- drivers/staging/lustre/include/linux/libcfs/linux/linux-lock.h | 2 +- drivers/staging/lustre/lustre/include/lustre_dlm.h | 2 +- drivers/staging/lustre/lustre/include/lustre_net.h | 2 +- drivers/staging/lustre/lustre/lov/lov_merge.c | 4 ++-- drivers/staging/lustre/lustre/obdclass/cl_lock.c | 2 +- drivers/staging/lustre/lustre/obdclass/cl_object.c | 4 ++-- drivers/staging/lustre/lustre/obdclass/cl_page.c | 2 +- drivers/staging/lustre/lustre/osc/osc_cache.c | 4 ++-- drivers/staging/lustre/lustre/osc/osc_cl_internal.h | 9 +++++++++ drivers/staging/lustre/lustre/ptlrpc/client.c | 8 +++----- drivers/staging/lustre/lustre/ptlrpc/gss/gss_pipefs.c | 4 ++-- drivers/staging/lustre/lustre/ptlrpc/import.c | 2 +- drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 2 +- drivers/staging/lustre/lustre/ptlrpc/pinger.c | 2 +- drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c | 2 +- drivers/staging/lustre/lustre/ptlrpc/service.c | 4 ++-- 16 files changed, 31 insertions(+), 24 deletions(-) diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-lock.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-lock.h index d6e00f9..b75e401 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-lock.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-lock.h @@ -66,7 +66,7 @@ * - spin_unlock(x) * - spin_unlock_bh(x) * - spin_trylock(x) - * - spin_is_locked(x) + * - assert_spin_locked(x) * * - spin_lock_irq(x) * - spin_lock_irqsave(x, f) diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h index e28e31a..0c6b784 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h @@ -1445,7 +1445,7 @@ static inline void unlock_res(struct ldlm_resource *res) /** Check if resource is already locked, assert if not. */ static inline void check_res_locked(struct ldlm_resource *res) { - LASSERT(spin_is_locked(&res->lr_lock)); + assert_spin_locked(&res->lr_lock); } struct ldlm_resource * lock_res_and_lock(struct ldlm_lock *lock); diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h index 7640e17..f6b7d10 100644 --- a/drivers/staging/lustre/lustre/include/lustre_net.h +++ b/drivers/staging/lustre/lustre/include/lustre_net.h @@ -719,7 +719,7 @@ struct ptlrpc_nrs_pol_ops { * \a nrq * \param[in,out] nrq The request * - * \pre spin_is_locked(&svcpt->scp_req_lock) + * \pre assert_spin_locked(&svcpt->scp_req_lock) * * \see ptlrpc_nrs_req_stop_nolock() */ diff --git a/drivers/staging/lustre/lustre/lov/lov_merge.c b/drivers/staging/lustre/lustre/lov/lov_merge.c index 0a14cee..da959e9 100644 --- a/drivers/staging/lustre/lustre/lov/lov_merge.c +++ b/drivers/staging/lustre/lustre/lov/lov_merge.c @@ -58,7 +58,7 @@ int lov_merge_lvb_kms(struct lov_stripe_md *lsm, int i; int rc = 0; - LASSERT(spin_is_locked(&lsm->lsm_lock)); + assert_spin_locked(&lsm->lsm_lock); LASSERT(lsm->lsm_lock_owner == current_pid()); CDEBUG(D_INODE, "MDT ID "DOSTID" initial value: s="LPU64" m="LPU64 @@ -145,7 +145,7 @@ int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm, int stripe = 0; __u64 kms; - LASSERT(spin_is_locked(&lsm->lsm_lock)); + assert_spin_locked(&lsm->lsm_lock); LASSERT(lsm->lsm_lock_owner == current_pid()); if (shrink) { diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c index f8040a8..df77c4f 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c @@ -478,7 +478,7 @@ static struct cl_lock *cl_lock_lookup(const struct lu_env *env, struct cl_object_header *head; head = cl_object_header(obj); - LINVRNT(spin_is_locked(&head->coh_lock_guard)); + assert_spin_locked(&head->coh_lock_guard); CS_LOCK_INC(obj, lookup); list_for_each_entry(lock, &head->coh_locks, cll_linkage) { int matched; diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index 2837cbc..41cbc95 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -220,7 +220,7 @@ int cl_object_attr_get(const struct lu_env *env, struct cl_object *obj, struct lu_object_header *top; int result; - LASSERT(spin_is_locked(cl_object_attr_guard(obj))); + assert_spin_locked(cl_object_attr_guard(obj)); top = obj->co_lu.lo_header; result = 0; @@ -251,7 +251,7 @@ int cl_object_attr_set(const struct lu_env *env, struct cl_object *obj, struct lu_object_header *top; int result; - LASSERT(spin_is_locked(cl_object_attr_guard(obj))); + assert_spin_locked(cl_object_attr_guard(obj)); top = obj->co_lu.lo_header; result = 0; diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index a4b04cb..1b616e4 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -130,7 +130,7 @@ struct cl_page *cl_page_lookup(struct cl_object_header *hdr, pgoff_t index) { struct cl_page *page; - LASSERT(spin_is_locked(&hdr->coh_page_guard)); + assert_spin_locked(&hdr->coh_page_guard); page = radix_tree_lookup(&hdr->coh_tree, index); if (page != NULL) diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index fe9989a..00f38ee 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1311,7 +1311,7 @@ static int osc_completion(const struct lu_env *env, struct osc_async_page *oap, static void osc_consume_write_grant(struct client_obd *cli, struct brw_page *pga) { - LASSERT(spin_is_locked(&cli->cl_loi_list_lock.lock)); + assert_spin_locked(&cli->cl_loi_list_lock.lock); LASSERT(!(pga->flag & OBD_BRW_FROM_GRANT)); atomic_inc(&obd_dirty_pages); cli->cl_dirty += PAGE_CACHE_SIZE; @@ -1326,7 +1326,7 @@ static void osc_consume_write_grant(struct client_obd *cli, static void osc_release_write_grant(struct client_obd *cli, struct brw_page *pga) { - LASSERT(spin_is_locked(&cli->cl_loi_list_lock.lock)); + assert_spin_locked(&cli->cl_loi_list_lock.lock); if (!(pga->flag & OBD_BRW_FROM_GRANT)) { return; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index 9e7899f..e74b7bb 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -176,7 +176,16 @@ static inline void osc_object_unlock(struct osc_object *obj) static inline int osc_object_is_locked(struct osc_object *obj) { +#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) return spin_is_locked(&obj->oo_lock); +#else + /* + * It is not perfect to return true all the time. + * But since this function is only used for assertion + * and checking, it seems OK. + */ + return 1; +#endif } /* diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c index 2098772..7246e8c 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/client.c +++ b/drivers/staging/lustre/lustre/ptlrpc/client.c @@ -2271,7 +2271,7 @@ static int __ptlrpc_req_finished(struct ptlrpc_request *request, int locked); */ void ptlrpc_req_finished_with_imp_lock(struct ptlrpc_request *request) { - LASSERT(spin_is_locked(&request->rq_import->imp_lock)); + assert_spin_locked(&request->rq_import->imp_lock); (void)__ptlrpc_req_finished(request, 1); } EXPORT_SYMBOL(ptlrpc_req_finished_with_imp_lock); @@ -2452,9 +2452,7 @@ void ptlrpc_free_committed(struct obd_import *imp) bool skip_committed_list = true; LASSERT(imp != NULL); - - LASSERT(spin_is_locked(&imp->imp_lock)); - + assert_spin_locked(&imp->imp_lock); if (imp->imp_peer_committed_transno == imp->imp_last_transno_checked && imp->imp_generation == imp->imp_last_generation_checked) { @@ -2585,7 +2583,7 @@ void ptlrpc_retain_replayable_request(struct ptlrpc_request *req, { struct list_head *tmp; - LASSERT(spin_is_locked(&imp->imp_lock)); + assert_spin_locked(&imp->imp_lock); if (req->rq_transno == 0) { DEBUG_REQ(D_EMERG, req, "saving request with zero transno"); diff --git a/drivers/staging/lustre/lustre/ptlrpc/gss/gss_pipefs.c b/drivers/staging/lustre/lustre/ptlrpc/gss/gss_pipefs.c index 7a1ff4f..3be5bc1 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/gss/gss_pipefs.c +++ b/drivers/staging/lustre/lustre/ptlrpc/gss/gss_pipefs.c @@ -137,7 +137,7 @@ void ctx_enhash_pf(struct ptlrpc_cli_ctx *ctx, struct hlist_head *hash) static void ctx_unhash_pf(struct ptlrpc_cli_ctx *ctx, struct hlist_head *freelist) { - LASSERT(spin_is_locked(&ctx->cc_sec->ps_lock)); + assert_spin_locked(&ctx->cc_sec->ps_lock); LASSERT(atomic_read(&ctx->cc_refcount) > 0); LASSERT(test_bit(PTLRPC_CTX_CACHED_BIT, &ctx->cc_flags)); LASSERT(!hlist_unhashed(&ctx->cc_cache)); @@ -719,7 +719,7 @@ void gss_unhash_msg_nolock(struct gss_upcall_msg *gmsg) __u32 idx = gmsg->gum_mechidx; LASSERT(idx < MECH_MAX); - LASSERT(spin_is_locked(&upcall_locks[idx])); + assert_spin_locked(&upcall_locks[idx]); if (list_empty(&gmsg->gum_list)) return; diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c index b231452..1c73194 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/import.c +++ b/drivers/staging/lustre/lustre/ptlrpc/import.c @@ -194,7 +194,7 @@ int ptlrpc_set_import_discon(struct obd_import *imp, __u32 conn_cnt) /* Must be called with imp_lock held! */ static void ptlrpc_deactivate_and_unlock_import(struct obd_import *imp) { - LASSERT(spin_is_locked(&imp->imp_lock)); + assert_spin_locked(&imp->imp_lock); CDEBUG(D_HA, "setting import %s INVALID\n", obd2cli_tgt(imp->imp_obd)); imp->imp_invalid = 1; diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c index 7a422ff..6b9c6db 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c @@ -449,7 +449,7 @@ void nrs_policy_get_info_locked(struct ptlrpc_nrs_policy *policy, { LASSERT(policy != NULL); LASSERT(info != NULL); - LASSERT(spin_is_locked(&policy->pol_nrs->nrs_lock)); + assert_spin_locked(&policy->pol_nrs->nrs_lock); memcpy(info->pi_name, policy->pol_desc->pd_name, NRS_POL_NAME_MAX); diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c index 6dff502..38099d9 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c +++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c @@ -368,7 +368,7 @@ EXPORT_SYMBOL(ptlrpc_pinger_sending_on_import); void ptlrpc_pinger_commit_expected(struct obd_import *imp) { ptlrpc_update_next_ping(imp, 1); - LASSERT(spin_is_locked(&imp->imp_lock)); + assert_spin_locked(&imp->imp_lock); /* * Avoid reading stale imp_connect_data. When not sure if pings are * expected or not on next connection, we assume they are not and force diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c index 1d46b5e..9d51bad 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c @@ -450,7 +450,7 @@ out: static inline void enc_pools_wakeup(void) { - LASSERT(spin_is_locked(&page_pools.epp_lock)); + assert_spin_locked(&page_pools.epp_lock); LASSERT(page_pools.epp_waitqlen >= 0); if (unlikely(page_pools.epp_waitqlen)) { diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c index 5d0eb6c..d278f2e 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/service.c +++ b/drivers/staging/lustre/lustre/ptlrpc/service.c @@ -384,8 +384,8 @@ void ptlrpc_dispatch_difficult_reply(struct ptlrpc_reply_state *rs) void ptlrpc_schedule_difficult_reply(struct ptlrpc_reply_state *rs) { - LASSERT(spin_is_locked(&rs->rs_svcpt->scp_rep_lock)); - LASSERT(spin_is_locked(&rs->rs_lock)); + assert_spin_locked(&rs->rs_svcpt->scp_rep_lock); + assert_spin_locked(&rs->rs_lock); LASSERT(rs->rs_difficult); rs->rs_scheduled_ever = 1; /* flag any notification attempt */ -- 1.8.5.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
