From patchwork Wed May 8 09:47:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Byungchul Park X-Patchwork-Id: 13658400 Received: from invmail4.hynix.com (exvmail4.hynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 4F28D7E0FF; Wed, 8 May 2024 10:02:59 +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=1715162583; cv=none; b=aZQqtStLXIU4dDifskHgIepw0TBrLCs8VF+Px+6j7pxHnAwWDVI9IIW8qZoChNWlbql2LRjDnAQDvbo5MpKNI7imBYWTrEoxcmXZk+zkaBeRApu2R8GAEnZHJ4U3TdFjl6adyVrXloJFOkxQQIWVsSDlqtqnB6jNbYSzq0uayDI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715162583; c=relaxed/simple; bh=Z/lrsPfinthw0Keb2TOWgQylHJ0tuWxQmHrjSTWrwaY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=UBpHFhHuap42M0xL3Jl3a1U0nR2jROgFvBfLjafo3nAVroTyzIt9Aw6MZuoYpuzDcjgmqdaLHf6EkNR6Fjk8WP/ncVD5X3o8K12cRd9ADhmD50mrm1uzMlzywSDCHkWpvgwbx/MERGdCDyo77YZKeowueOrpAqNmvXBEDL/vFMw= 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-d85ff70000001748-c5-663b4a39573f 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, 42.hyeyoo@gmail.com, chris.p.wilson@intel.com, gwan-gyeong.mun@intel.com, max.byungchul.park@gmail.com, boqun.feng@gmail.com, longman@redhat.com, hdanton@sina.com, her0gyugyu@gmail.com Subject: [PATCH v14 11/28] dept: Apply sdt_might_sleep_{start,end}() to wait_for_completion()/complete() Date: Wed, 8 May 2024 18:47:08 +0900 Message-Id: <20240508094726.35754-12-byungchul@sk.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240508094726.35754-1-byungchul@sk.com> References: <20240508094726.35754-1-byungchul@sk.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzXSa0yTZxQAYN/3u1Kp+awYP1jGZo0xwYiwwHa8xC0uGe+cM9P5S3/MBj6k sQVTFOzMJlhQ7gEmdhTcuJiuQrVSunhFKwYEzKBOwpBgh42g1QJJtYRKo2ud/jl5cm45Pw5P KRxMHK/OPiTpslUaJSujZdPRzes2btuUmVT2NBpqKpIg8LKEhkablQXXhXYEVkchBm9PGvwz 50Ow8NcQBcY6F4LmRw8pcPS6EXRZjrNw//ESGA7MstBfV86CodXGwr3nIQzjp2sxtNu/hbvV LRicwSc0GL0sNBgNOByeYgia2zgwF6wGj8XEQehRMvS7RxjoGlsL9b+Ns3C9q5+G3sseDPev NrLgtr5h4G5vHw2umkoGzs+0sPB8zkyBOTDLwd/OJgwXi8KLTrx4zcCdSieGE2c7MAw/uIbg RskEBrt1hIXbAR+GTnsdBa/+6EHgqZrmoLgiyEFDYRWC8uLTNBSNp8LCfCP7xQZy2zdLkaLO fNI110STgRaRXDE95EjRjTGONNkPk05LAmm97sWk2R9giL2tlCV2fy1HyqaHMZkZHORI368L NHk8bMTfxe2Rbc6QNOo8Sbd+yz5ZVr97kjl4c+mR0OtjBcixpAxF8aKQIpqe/UK/t6HbxkXM CmvE0dEgFXGM8LHYWTnFREwJPpl4dvCriJcJWeL80E0cMS2sFuvL/3w7Kxc+FU8Z5qn/d34k tl90vnVUOP/gyQyKWCGkitcMpnC/LNzzhhenCi+9OyJWvGUZpauRvAktakMKdXaeVqXWpCRm 6bPVRxLTc7R2FP4l80+hvZeR3/V9NxJ4pIyWO1dszFQwqrxcvbYbiTyljJH3nPwsUyHPUOl/ lHQ5P+gOa6TcbvQBTytXyD+Zy89QCPtVh6QDknRQ0r2vYj4qrgDVedom/Wdi6zX7gtLAJeuz k2lkW1KOr9Zna4wfm4zXL5/Z4u0QV626sjWUprXk+z886u1oXbd9rT7Qap06tUwjpQ99/o1j V3A2IXHn7tKvUyZaXsROxAiu33d8uf9cxfzi4gPpyaXHbLIpi0n788q+TbXu40P/GgdiPLCj 2pjQwyvp3CxVcgKly1X9B41FmvJHAwAA X-Brightmail-Tracker: H4sIAAAAAAAAAzXSbUhTYRQH8J7nvs3R6rasbhoYA+mNzF7UU0ZEUF2UpA+RIEXd6qqrabap aRBZUzPNSMktzUKtlqhlTQPTfGHicka63DANlZTKLN9IZzOX5Yq+HH6cP+f/6UgIuY7ykihj 40V1rKBS0FJSGhas3bg9JDjS35y/FXKu+4NjKoOEwsoKGqxPyhFUVF/GMNyyH95NjyCYfdNB gD7PiqB4oI+AanM/gvrSKzTYPi4Cu2OcBkteFg3a+5U0vP3mwtCry8VQbjwAr2+WYGiaGSJB P0zDHb0Wz48vGGYMZQwYUnxhsLSAAdfAZrD0d1HQfNdCQf37DZB/r5eGl/UWEsw1gxhstYU0 9Ff8puC1uZUEa042BY/HSmj4Nm0gwOAYZ6CzqQjD09T5tvTJOQpeZTdhSH/wDIO9pw5BQ8YH DMaKLhqaHSMYqox5BPx81IJg8MYoA2nXZxi4c/kGgqw0HQmpvQEw6yykd+/gm0fGCT616jxf P11E8m0lHP+ioI/hUxveM3yRMYGvKl3P3385jPni7w6KN5Zdo3nj91yGzxy1Y36svZ3hW2/P kvxHux4f9I6Q7jwlqpSJonrTruPSaEv/JyqucUmSa+5SCqpelIk8JBy7jdOaKhm3aXYN1909 Q7jtya7mqrI/U24T7IiUe9C+z+2lbDTn7GjEbpOsL5ef9fzvrYwN5G5pncS/Th+u/GnTX3vM 73uGxpDbcjaAq9MWMDeRtAgtKEOeytjEGEGpCvDTnIlOjlUm+Z08G2NE899iuOjKqUFTtv0m xEqQYqHMSgdHyikhUZMcY0KchFB4ylquBkXKZaeE5Aui+uwxdYJK1JiQt4RUrJCFhIvH5WyU EC+eEcU4Uf0/xRIPrxQU7nSOBhqPdnakhPSsPbTOJ0zVtS60wfVLf6A7N792cWTQ88yBV3uW 5bW27dXfjb83MRdy5O2EzRpqPmH/6ji90mvL8GTNgqGksCBSWBWcWKb7sUrYuDw3PS5U5tiT eRJ/nTzHXe1x9m5q7BvtTHtmmjq8dSJqu201266bdF6IeOijIDXRwub1hFoj/AFChrUtKQMA AA== X-CFilter-Loop: Reflected Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Makes 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);