From patchwork Sat Feb 19 10:58:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Byungchul Park X-Patchwork-Id: 12752251 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8120C4167E for ; Sat, 19 Feb 2022 10:58:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242155AbiBSK7M (ORCPT ); Sat, 19 Feb 2022 05:59:12 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:41562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242062AbiBSK7G (ORCPT ); Sat, 19 Feb 2022 05:59:06 -0500 Received: from lgeamrelo11.lge.com (lgeamrelo12.lge.com [156.147.23.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5884369484 for ; Sat, 19 Feb 2022 02:58:42 -0800 (PST) Received: from unknown (HELO lgemrelse7q.lge.com) (156.147.1.151) by 156.147.23.52 with ESMTP; 19 Feb 2022 19:58:42 +0900 X-Original-SENDERIP: 156.147.1.151 X-Original-MAILFROM: byungchul.park@lge.com Received: from unknown (HELO localhost.localdomain) (10.177.244.38) by 156.147.1.151 with ESMTP; 19 Feb 2022 19:58:42 +0900 X-Original-SENDERIP: 10.177.244.38 X-Original-MAILFROM: byungchul.park@lge.com From: Byungchul Park To: torvalds@linux-foundation.org Cc: damien.lemoal@opensource.wdc.com, linux-ide@vger.kernel.org, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, mingo@redhat.com, linux-kernel@vger.kernel.org, peterz@infradead.org, will@kernel.org, tglx@linutronix.de, rostedt@goodmis.org, joel@joelfernandes.org, sashal@kernel.org, daniel.vetter@ffwll.ch, chris@chris-wilson.co.uk, duyuyang@gmail.com, johannes.berg@intel.com, tj@kernel.org, tytso@mit.edu, willy@infradead.org, david@fromorbit.com, amir73il@gmail.com, bfields@fieldses.org, gregkh@linuxfoundation.org, kernel-team@lge.com, linux-mm@kvack.org, akpm@linux-foundation.org, mhocko@kernel.org, minchan@kernel.org, hannes@cmpxchg.org, vdavydov.dev@gmail.com, sj@kernel.org, jglisse@redhat.com, dennis@kernel.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, vbabka@suse.cz, ngupta@vflare.org, linux-block@vger.kernel.org, axboe@kernel.dk, paolo.valente@linaro.org, josef@toxicpanda.com, linux-fsdevel@vger.kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz, jack@suse.com, jlayton@kernel.org, dan.j.williams@intel.com, hch@infradead.org, djwong@kernel.org, dri-devel@lists.freedesktop.org, airlied@linux.ie, rodrigosiqueiramelo@gmail.com, melissa.srw@gmail.com, hamohammed.sa@gmail.com Subject: [PATCH v2 06/18] dept: Apply Dept to mutex families Date: Sat, 19 Feb 2022 19:58:19 +0900 Message-Id: <1645268311-24222-7-git-send-email-byungchul.park@lge.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1645268311-24222-1-git-send-email-byungchul.park@lge.com> References: <1645268311-24222-1-git-send-email-byungchul.park@lge.com> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Makes Dept able to track dependencies by mutex families. Signed-off-by: Byungchul Park --- include/linux/lockdep.h | 18 +++++++++++++++--- include/linux/mutex.h | 33 +++++++++++++++++++++++++++++++++ include/linux/rtmutex.h | 7 +++++++ 3 files changed, 55 insertions(+), 3 deletions(-) diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index 529ea18..6653a4f 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -615,9 +615,21 @@ static inline void print_irqtrace_events(struct task_struct *curr) #define seqcount_acquire_read(l, s, t, i) lock_acquire_shared_recursive(l, s, t, NULL, i) #define seqcount_release(l, i) lock_release(l, i) -#define mutex_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i) -#define mutex_acquire_nest(l, s, t, n, i) lock_acquire_exclusive(l, s, t, n, i) -#define mutex_release(l, i) lock_release(l, i) +#define mutex_acquire(l, s, t, i) \ +do { \ + lock_acquire_exclusive(l, s, t, NULL, i); \ + dept_mutex_lock(&(l)->dmap, s, t, NULL, "mutex_unlock", i); \ +} while (0) +#define mutex_acquire_nest(l, s, t, n, i) \ +do { \ + lock_acquire_exclusive(l, s, t, n, i); \ + dept_mutex_lock(&(l)->dmap, s, t, (n) ? &(n)->dmap : NULL, "mutex_unlock", i);\ +} while (0) +#define mutex_release(l, i) \ +do { \ + lock_release(l, i); \ + dept_mutex_unlock(&(l)->dmap, i); \ +} while (0) #define rwsem_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i) #define rwsem_acquire_nest(l, s, t, n, i) lock_acquire_exclusive(l, s, t, n, i) diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 8f226d4..204f976 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -20,11 +20,18 @@ #include #include +#ifdef CONFIG_DEPT +# define DMAP_MUTEX_INIT(lockname) .dmap = { .name = #lockname, .skip_cnt = ATOMIC_INIT(0) }, +#else +# define DMAP_MUTEX_INIT(lockname) +#endif + #ifdef CONFIG_DEBUG_LOCK_ALLOC # define __DEP_MAP_MUTEX_INITIALIZER(lockname) \ , .dep_map = { \ .name = #lockname, \ .wait_type_inner = LD_WAIT_SLEEP, \ + DMAP_MUTEX_INIT(lockname) \ } #else # define __DEP_MAP_MUTEX_INITIALIZER(lockname) @@ -75,6 +82,32 @@ struct mutex { #endif }; +#ifdef CONFIG_DEPT +#define dept_mutex_lock(m, ne, t, n, e_fn, ip) \ +do { \ + if (t) { \ + dept_ecxt_enter(m, 1UL, ip, __func__, e_fn, ne); \ + dept_ask_event(m); \ + } else if (n) { \ + dept_skip(m); \ + } else { \ + dept_wait(m, 1UL, ip, __func__, ne); \ + dept_ecxt_enter(m, 1UL, ip, __func__, e_fn, ne); \ + dept_ask_event(m); \ + } \ +} while (0) +#define dept_mutex_unlock(m, ip) \ +do { \ + if (!dept_unskip_if_skipped(m)) { \ + dept_event(m, 1UL, ip, __func__); \ + dept_ecxt_exit(m, ip); \ + } \ +} while (0) +#else +#define dept_mutex_lock(m, ne, t, n, e_fn, ip) do { } while (0) +#define dept_mutex_unlock(m, ip) do { } while (0) +#endif + #ifdef CONFIG_DEBUG_MUTEXES #define __DEBUG_MUTEX_INITIALIZER(lockname) \ diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h index 7d04988..712d6e6 100644 --- a/include/linux/rtmutex.h +++ b/include/linux/rtmutex.h @@ -76,11 +76,18 @@ static inline void rt_mutex_debug_task_free(struct task_struct *tsk) { } __rt_mutex_init(mutex, __func__, &__key); \ } while (0) +#ifdef CONFIG_DEPT +#define DMAP_RT_MUTEX_INIT(mutexname) .dmap = { .name = #mutexname, .skip_cnt = ATOMIC_INIT(0) }, +#else +#define DMAP_RT_MUTEX_INIT(mutexname) +#endif + #ifdef CONFIG_DEBUG_LOCK_ALLOC #define __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname) \ .dep_map = { \ .name = #mutexname, \ .wait_type_inner = LD_WAIT_SLEEP, \ + DMAP_RT_MUTEX_INIT(mutexname) \ } #else #define __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname)