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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 17/47] dept: apply sdt_might_sleep_{start,end}() to dma fence Date: Thu, 2 Oct 2025 17:12:17 +0900 Message-Id: <20251002081247.51255-18-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: H4sIAAAAAAAAAzXSbUxTZxQHcJ9773NbGqrXauJVmC9VNL6AYtCdGbeoQb0LMTr9YKIxo4Gr bSxgWkAgmpQ3JQZRUUCkuiLaEVpobeNGWRFFRQ0irShWBWy11hBgqGtBFOwA47df/ud/zqcj JCWdeI5QkZzKq5JlSiktokQDoZWR02J65KvO5yyFgL+AAq3JSEOBpRyDo86AYPhLBQn5tiAF /pGXAgg2tiAodRaT8J/5Kw0lHi8NvXe3QrD7HQHPhvoR6L1fCfDePI5grPQg/HHZSkNjdQ4N b09fJ6HDOxWeBAZpGHBqCfjXTIMupxHDxYpiBLlVJhps7gYBOPtGCegqLSbAYNkGr/Q+Ckqv zYKKslwCSmr/IWBEXyOAh1VdFOg1ETDqiYagLgW6T5VQUDfQjqHPV0zDq3vHMPytcQvA/8RD gLHQR4LlTSeG8ktdNNgbH1BQMOZH0FL/moCOBi0NhebrGHqMQQyaimEMjw0OCkzvXAS0ttyn 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rVtftWsmlPbcPMnNtJTHx4JE768vdLKsuG1YE1SOmDnFfk36intCpaPUDVVytwP63kPu/7794XMh2iX4mgidn7M1mfg== 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 dma fence waits and signals. Signed-off-by: Byungchul Park --- drivers/dma-buf/dma-fence.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index 3f78c56b58dc..787fa10a49f1 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -16,6 +16,7 @@ #include #include #include +#include #define CREATE_TRACE_POINTS #include @@ -800,6 +801,7 @@ dma_fence_default_wait(struct dma_fence *fence, bool intr, signed long timeout) cb.task = current; list_add(&cb.base.node, &fence->cb_list); + sdt_might_sleep_start(NULL); while (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags) && ret > 0) { if (intr) __set_current_state(TASK_INTERRUPTIBLE); @@ -813,6 +815,7 @@ dma_fence_default_wait(struct dma_fence *fence, bool intr, signed long timeout) if (ret > 0 && intr && signal_pending(current)) ret = -ERESTARTSYS; } + sdt_might_sleep_end(); if (!list_empty(&cb.base.node)) list_del(&cb.base.node); @@ -902,6 +905,7 @@ dma_fence_wait_any_timeout(struct dma_fence **fences, uint32_t count, } } + sdt_might_sleep_start(NULL); while (ret > 0) { if (intr) set_current_state(TASK_INTERRUPTIBLE); @@ -916,6 +920,7 @@ dma_fence_wait_any_timeout(struct dma_fence **fences, uint32_t count, if (ret > 0 && intr && signal_pending(current)) ret = -ERESTARTSYS; } + sdt_might_sleep_end(); __set_current_state(TASK_RUNNING); -- 2.17.1