From patchwork Tue Jan 31 08:39:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Byungchul Park X-Patchwork-Id: 13122415 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 C4F27C636CC for ; Tue, 31 Jan 2023 08:41:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231810AbjAaIlY (ORCPT ); Tue, 31 Jan 2023 03:41:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231668AbjAaIkN (ORCPT ); Tue, 31 Jan 2023 03:40:13 -0500 Received: from lgeamrelo11.lge.com (lgeamrelo11.lge.com [156.147.23.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 8A98446096 for ; Tue, 31 Jan 2023 00:39:58 -0800 (PST) Received: from unknown (HELO lgeamrelo04.lge.com) (156.147.1.127) by 156.147.23.51 with ESMTP; 31 Jan 2023 17:39:58 +0900 X-Original-SENDERIP: 156.147.1.127 X-Original-MAILFROM: max.byungchul.park@gmail.com Received: from unknown (HELO localhost.localdomain) (10.177.244.38) by 156.147.1.127 with ESMTP; 31 Jan 2023 17:39:58 +0900 X-Original-SENDERIP: 10.177.244.38 X-Original-MAILFROM: max.byungchul.park@gmail.com From: Byungchul Park To: linux-kernel@vger.kernel.org Cc: 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, paolo.valente@linaro.org, josef@toxicpanda.com, linux-fsdevel@vger.kernel.org, viro@zeniv.linux.org.uk, 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 Subject: [PATCH v9 10/25] dept: Apply sdt_might_sleep_{start,end}() to waitqueue wait Date: Tue, 31 Jan 2023 17:39:39 +0900 Message-Id: <1675154394-25598-11-git-send-email-max.byungchul.park@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1675154394-25598-1-git-send-email-max.byungchul.park@gmail.com> References: <1675154394-25598-1-git-send-email-max.byungchul.park@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Makes Dept able to track dependencies by waitqueue waits. Signed-off-by: Byungchul Park --- include/linux/wait.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/wait.h b/include/linux/wait.h index a0307b5..ff349e6 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -303,6 +304,7 @@ static inline void wake_up_pollfree(struct wait_queue_head *wq_head) struct wait_queue_entry __wq_entry; \ long __ret = ret; /* explicit shadow */ \ \ + sdt_might_sleep_start(NULL); \ init_wait_entry(&__wq_entry, exclusive ? WQ_FLAG_EXCLUSIVE : 0); \ for (;;) { \ long __int = prepare_to_wait_event(&wq_head, &__wq_entry, state);\ @@ -318,6 +320,7 @@ static inline void wake_up_pollfree(struct wait_queue_head *wq_head) cmd; \ } \ finish_wait(&wq_head, &__wq_entry); \ + sdt_might_sleep_end(); \ __out: __ret; \ })