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Message-Id: <20240124115938.80132-8-byungchul@sk.com> Date: Wed, 24 Jan 2024 20:59:18 +0900 From: Byungchul Park <byungchul@...com> To: linux-kernel@...r.kernel.org Cc: kernel_team@...ynix.com, torvalds@...ux-foundation.org, damien.lemoal@...nsource.wdc.com, linux-ide@...r.kernel.org, adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org, mingo@...hat.com, peterz@...radead.org, will@...nel.org, tglx@...utronix.de, rostedt@...dmis.org, joel@...lfernandes.org, sashal@...nel.org, daniel.vetter@...ll.ch, duyuyang@...il.com, johannes.berg@...el.com, tj@...nel.org, tytso@....edu, willy@...radead.org, david@...morbit.com, amir73il@...il.com, gregkh@...uxfoundation.org, kernel-team@....com, linux-mm@...ck.org, akpm@...ux-foundation.org, mhocko@...nel.org, minchan@...nel.org, hannes@...xchg.org, vdavydov.dev@...il.com, sj@...nel.org, jglisse@...hat.com, dennis@...nel.org, cl@...ux.com, penberg@...nel.org, rientjes@...gle.com, vbabka@...e.cz, ngupta@...are.org, linux-block@...r.kernel.org, josef@...icpanda.com, linux-fsdevel@...r.kernel.org, viro@...iv.linux.org.uk, jack@...e.cz, jlayton@...nel.org, dan.j.williams@...el.com, hch@...radead.org, djwong@...nel.org, dri-devel@...ts.freedesktop.org, rodrigosiqueiramelo@...il.com, melissa.srw@...il.com, hamohammed.sa@...il.com, 42.hyeyoo@...il.com, chris.p.wilson@...el.com, gwan-gyeong.mun@...el.com, max.byungchul.park@...il.com, boqun.feng@...il.com, longman@...hat.com, hdanton@...a.com, her0gyugyu@...il.com Subject: [PATCH v11 07/26] dept: Apply sdt_might_sleep_{start,end}() to wait_for_completion()/complete() Makes Dept able to track dependencies by wait_for_completion()/complete(). Signed-off-by: Byungchul Park <byungchul@...com> --- 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 <linux/swait.h> +#include <linux/dept_sdt.h> /* * 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
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