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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: H4sIAAAAAAAAAzXSa0hTYRgH8N5z3nM2h7PTijppYawkk5wWFg+UERF0oAIrpKgPOvLQVt7Y zLILrXBd1EStZWqZZshIo3FsVLPC1sWcl6aWzvJa5KVykuWWadZm+e3H/3n483x4xKQsm/IX qxNTeE2iMl5OS7Bk2Lc01C+iWxVeYJZD2+kaDOeFAgr0D/9guNKcR8J30xQNwz3VFOQb7AgG TecQ3HvZjeBTjpmEN2MjNNQZMmlwmmi4cl3A0PxlkoAKYTv0lPdjyB+iwXCnmoCGsk4MRY2t FHwwFoqgp/YsBfd1vSIQOl4g+PGmj4DzljEMBcWdNLRartHQXfmHAl2RmwJ7TT0FLRV2DK8t dyjo63VQcMnZj8D4LZ8CU7qnb/SWC8O5wWoaBgqvE/Bs7CsBtl82AvRZ4yIwv3CLYOKnp/Sn 6SMFzpwf1MZwzq3Pxpy+5TfNVRZXIu7Z1xGSs91kuYeFXSKuRDjMVRlDuLJHQwQn3L5Ac8Jo 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TUjw84vLZgKe9hPc0sfZNzxJv0bbZKeMIEvTqcv/64zmIDP/PWmLXt7dZdVEChzA2/fQYJucY4RYJC7C3l2ueuB7YSN0XgQkkP0J08/p10n/AMsbV/97bUh50ANLXSMrSQvRU X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.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