From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from invmail4.hynix.com (exvmail4.skhynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 713DC2F1FE3; Thu, 2 Oct 2025 08:13:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=166.125.252.92 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759392817; cv=none; b=ogyzH1UiKsJoesRybd0b9SoR9cr3FIxvGIEjbngIDmTlQaeABLmVAVi8ye/7zF5MNIzAFlBzu9knmeVpEP42e8TJbxzSW6vejInUjxFr9hUr+JnKK/I4/vwpk/9EnXZb4e5TexM1cVMPh2a15S0EUwe7OAf1tqYWMgzHdqpMi2U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759392817; c=relaxed/simple; bh=mVczWw5AJvTGaUa2k+kGuAdITLqzYAqLiO2CNQ+CNGE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=TeaRSiCUV+vRBa/DjPVxuBfXa/Z/V9nOZZRWOsQXH+nY3o58i+C9ryKG6vqWXDRuAj4Vl2Ve+BEiYo5hQ5MJyC3D9rOizZEq5p5wlMpaFam5wdx4oluD/EJBepblspkPypCD97j9/tXGJjFb6CsJkXwMbqGpvV/ARu1RHxu/npY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com; spf=pass smtp.mailfrom=sk.com; arc=none smtp.client-ip=166.125.252.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sk.com X-AuditID: a67dfc5b-c2dff70000001609-cf-68de340e8592 From: Byungchul Park To: linux-kernel@vger.kernel.org Cc: kernel_team@skhynix.com, torvalds@linux-foundation.org, damien.lemoal@opensource.wdc.com, linux-ide@vger.kernel.org, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, will@kernel.org, tglx@linutronix.de, rostedt@goodmis.org, joel@joelfernandes.org, sashal@kernel.org, daniel.vetter@ffwll.ch, duyuyang@gmail.com, johannes.berg@intel.com, tj@kernel.org, tytso@mit.edu, willy@infradead.org, david@fromorbit.com, amir73il@gmail.com, 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, josef@toxicpanda.com, linux-fsdevel@vger.kernel.org, jack@suse.cz, jlayton@kernel.org, dan.j.williams@intel.com, hch@infradead.org, djwong@kernel.org, dri-devel@lists.freedesktop.org, rodrigosiqueiramelo@gmail.com, melissa.srw@gmail.com, hamohammed.sa@gmail.com, harry.yoo@oracle.com, chris.p.wilson@intel.com, gwan-gyeong.mun@intel.com, max.byungchul.park@gmail.com, boqun.feng@gmail.com, longman@redhat.com, yunseong.kim@ericsson.com, ysk@kzalloc.com, yeoreum.yun@arm.com, netdev@vger.kernel.org, matthew.brost@intel.com, her0gyugyu@gmail.com, corbet@lwn.net, catalin.marinas@arm.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, luto@kernel.org, sumit.semwal@linaro.org, gustavo@padovan.org, christian.koenig@amd.com, andi.shyti@kernel.org, arnd@arndb.de, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, rppt@kernel.org, surenb@google.com, mcgrof@kernel.org, petr.pavlu@suse.com, da.gomez@kernel.org, samitolvanen@google.com, paulmck@kernel.org, frederic@kernel.org, neeraj.upadhyay@kernel.org, joelagnelf@nvidia.com, josh@joshtriplett.org, urezki@gmail.com, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, qiang.zhang@linux.dev, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, chuck.lever@oracle.com, neil@brown.name, okorniev@redhat.com, Dai.Ngo@oracle.com, tom@talpey.com, trondmy@kernel.org, anna@kernel.org, kees@kernel.org, bigeasy@linutronix.de, clrkwllms@kernel.org, mark.rutland@arm.com, ada.coupriediaz@arm.com, kristina.martsenko@arm.com, wangkefeng.wang@huawei.com, broonie@kernel.org, kevin.brodsky@arm.com, dwmw@amazon.co.uk, shakeel.butt@linux.dev, ast@kernel.org, ziy@nvidia.com, yuzhao@google.com, baolin.wang@linux.alibaba.com, usamaarif642@gmail.com, joel.granados@kernel.org, richard.weiyang@gmail.com, geert+renesas@glider.be, tim.c.chen@linux.intel.com, linux@treblig.org, alexander.shishkin@linux.intel.com, lillian@star-ark.net, chenhuacai@kernel.org, francesco@valla.it, guoweikang.kernel@gmail.com, link@vivo.com, jpoimboe@kernel.org, masahiroy@kernel.org, brauner@kernel.org, thomas.weissschuh@linutronix.de, oleg@redhat.com, mjguzik@gmail.com, andrii@kernel.org, wangfushuai@baidu.com, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-i2c@vger.kernel.org, linux-arch@vger.kernel.org, linux-modules@vger.kernel.org, rcu@vger.kernel.org, linux-nfs@vger.kernel.org, linux-rt-devel@lists.linux.dev Subject: [PATCH v17 13/47] dept: apply sdt_might_sleep_{start,end}() to wait_for_completion()/complete() Date: Thu, 2 Oct 2025 17:12:13 +0900 Message-Id: <20251002081247.51255-14-byungchul@sk.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251002081247.51255-1-byungchul@sk.com> References: <20251002081247.51255-1-byungchul@sk.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWSa0yTdxTG/b/X0ljyrmPhBWfcGnEJCg4H80QX4yf5f3DxQvwwTTaa9Q3t 5GJaQNgColQlpCJUhQScFrBNpR0wuiE4XsNwa0AEyhxQxXIb1yGSEKhCLVgwfjn5Pc855zlf joSUu+lwiSY1XdCmKpMVjJSSzm2uigqOHVJ/Lq7EwNJiAQU36+wMuGptCIaXChC88lWQ4Dc6 WVhcHmRhTXQisP92noDZhwsIboyOM1A2c56CeYsBQflkBQszf8fDmmeKgAHvCwSW8VUCxlsv I/CXnobbVQ4GfF09JFSOekgQrRcYeDIeDHO9NwkwXRBp+LnCiCC/uo6B5pH7LDwvNRLQWVxF QOmvoVBRlk8EyjQBy5YaFix5EfBmNAbWTGngtE2x4Ll6g4LauR4aOob6aZidNDJgN0yS0PBf QIrPdkLlpTsUtIgdFBT4FxE4m8YIMNT/TkPdlDtwyNlOQUf5XQrMA70EOLoek+At2gKukis0 uIsnEPzysoqBWa+FBMvSPAv/tJqIgypc42gksP2WHWHfihHhRXM+iS8WB6TecRabO18weGWp j8Gi10Thkq4o3FzuYbH+wTMWmxoysP6vORo7rJG4umWGOBp5UvqVSkjWZAra3QcSpWpfWyFx Rvwga7rPhfKQI7gQBUl4LpafqG1m33PDUzu5zgz3Ge92L29wCPcJ77gySa8zyXV+zPf37lrn Dzk1X3S9hFpniovgp+63b+TIuC95i89AvcvcxtvqWzdyggL+k9HODV/OxfEX5/VEIZIGZmxB /IC1mnm3EMb/aXVTxUhmQptqkFyTmpmi1CTHRquzUzVZ0d+npTSgwL9Zct6cakILroQ2xEmQ YrPMFeFRy2llpi47pQ3xElIRIku0PlfLZSpl9o+CNu07bUayoGtDWySUIlS2x3tWJeeSlOnC aUE4I2jfdwlJUHgeqv6/Muk6PhYXu+/oD7I4/zfRD4d7zF98m7fqjLclOaJ0ezctGDL6clxj 6dJDKdtzXoe3SJnweH33uUtHEm71ZjzOOvzK05+78rUs7EHwT2Jo06793SX3jk/8kXA1YmT6 IyN+VB4iLfr3mn/Hp5Hdg2lHtg42T6w2luWeML9UKQbb2XkFpVMrYyJJrU75FrxKK/lrAwAA X-Brightmail-Tracker: H4sIAAAAAAAAAzWSa0xTdxjG9z/nf84p1ZJjRT3qErZGYjTKJqn6RtFsHxaOzrsmRuOFBk5o xzUtICwaQWjkvtKsgBS1YmgIrVhbb8i6kJoRN8agAt6gYg0CahmJtioWZC2LX9783ud58+T5 8IpI6U1qmUiVkS2oMxRpMlqMxbs2F62NlD9VftvQSsKDwg4MAX8JhoarVhpK7Oco6G21IBgO lCB4HzSSoG2bxTCj72TAPzXIwKyzE0GNW0+C9XohAW9tn2h4ffcNAoN3hIbal4UYJs0VCOpH jQy8/CMBJobbKZj1jBHw8J0PgXnkEwEjHWcRzNSkwsVGBw3B7h4Sag29CC55PSSM20Lm9c6n CJzNZ2h4obtBQt9IJPQHJmn401BOw4S7gYB/bTSYzjgpOG/UIyi6fJWGmvN2DG3P7jDgfj1N wFCNngCLfScMm0cxdOkaiVC/0NW1JWCsLSJCY5wAw5V2AqbMLQz8fXkIg7kgBozdfRQ8b65n YNq7DmZNmdBpGWPA84sBQ+tED/WdAfHvtVWYb3HcJHjt/Rmat16wIj74UY94f1MRyWt1ofWu b5Lkix0n+KYuH81/DAzQvPOdCfN/NXJ8dfdavq3ew/DFvz9h9mw6LI5PFtJUuYL6m62JYmXQ VUZkORfkjQ/0ogLkiCxDESKOlXP2x1YyzDS7knv0aGqOo9ivOEflKBVmku36knvgXhPmhayS q/q1GocZszHc2J17TJgl7AbOHKzA/2dGcxZbx1xOREjv83bN6VJ2PaedLCZ0SGxCX7SgKFVG brpClbY+VpOqzM9Q5cUmZabbUeibzKemq28jf1+CC7EiJJsvccd4lFJKkavJT3chTkTKoiSJ zUNKqSRZkf+zoM48rs5JEzQutFyEZUsk2w8KiVI2RZEtpApClqD+7BKiiGUF6GSpsXRLjmvh 3thV+RPLV9ZJk3DK123T/pRzSYd+0Pmi4+TZg/MOHHGo1Nvk8yoPlB+qu1VHWf8xVSTc+FH2 m+/U/eRF9mf9Oy2795YtJqo/bKytaGh6my23HcVT+3YMHju9+eyKuO/jT8a1/+RlspR1r5bu 6AkkH2/V3Etpit+/qzxGhjVKxbrVpFqj+A/gRvS4SQMAAA== X-CFilter-Loop: Reflected Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Make dept able to track dependencies by wait_for_completion()/complete(). Signed-off-by: Byungchul Park --- include/linux/completion.h | 30 +++++++++++++++++++++++++----- 1 file changed, 25 insertions(+), 5 deletions(-) diff --git a/include/linux/completion.h b/include/linux/completion.h index fb2915676574..bd2c207481d6 100644 --- a/include/linux/completion.h +++ b/include/linux/completion.h @@ -10,6 +10,7 @@ */ #include +#include /* * struct completion - structure used to maintain state for a "completion" @@ -26,14 +27,33 @@ struct completion { unsigned int done; struct swait_queue_head wait; + struct dept_map dmap; }; +#define init_completion(x) \ +do { \ + sdt_map_init(&(x)->dmap); \ + __init_completion(x); \ +} while (0) + +/* + * XXX: No use cases for now. Fill the body when needed. + */ #define init_completion_map(x, m) init_completion(x) -static inline void complete_acquire(struct completion *x) {} -static inline void complete_release(struct completion *x) {} + +static inline void complete_acquire(struct completion *x) +{ + sdt_might_sleep_start(&x->dmap); +} + +static inline void complete_release(struct completion *x) +{ + sdt_might_sleep_end(); +} #define COMPLETION_INITIALIZER(work) \ - { 0, __SWAIT_QUEUE_HEAD_INITIALIZER((work).wait) } + { 0, __SWAIT_QUEUE_HEAD_INITIALIZER((work).wait), \ + .dmap = DEPT_MAP_INITIALIZER(work, NULL), } #define COMPLETION_INITIALIZER_ONSTACK_MAP(work, map) \ (*({ init_completion_map(&(work), &(map)); &(work); })) @@ -75,13 +95,13 @@ static inline void complete_release(struct completion *x) {} #endif /** - * init_completion - Initialize a dynamically allocated completion + * __init_completion - Initialize a dynamically allocated completion * @x: pointer to completion structure that is to be initialized * * This inline function will initialize a dynamically created completion * structure. */ -static inline void init_completion(struct completion *x) +static inline void __init_completion(struct completion *x) { x->done = 0; init_swait_queue_head(&x->wait); -- 2.17.1