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linaro-mm-sig@lists.linaro.org, linux-i2c@vger.kernel.org, linux-arch@vger.kernel.org, linux-modules@vger.kernel.org, rcu@vger.kernel.org, linux-nfs@vger.kernel.org, linux-rt-devel@lists.linux.dev, 2407018371@qq.com, dakr@kernel.org, miguel.ojeda.sandonis@gmail.com, neilb@ownmail.net, bagasdotme@gmail.com, wsa+renesas@sang-engineering.com, dave.hansen@intel.com, geert@linux-m68k.org, ojeda@kernel.org, alex.gaynor@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, rust-for-linux@vger.kernel.org Subject: [PATCH v19 14/40] dept: apply sdt_might_sleep_{start,end}() to dma fence Date: Mon, 6 Jul 2026 15:19:02 +0900 Message-Id: <20260706061928.66713-15-byungchul@sk.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20260706061928.66713-1-byungchul@sk.com> References: <20260706061928.66713-1-byungchul@sk.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWSe0xTdxTH+d37u7el0uSmaPxN/9B1wTkYTA0uJ2Yq0SVeITMuM3EZM1tj 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fvmupfLRc46AW/2jJVoPsvtiV1QWGTWEl+2URuMkpP/mT6Pws9EBeAyX2HVUg8nLGxXDcUOMlQF+6CejbqhsphTeNtQt+uKg67hnKuX+/rpfg3PQEf+3BFEG5KXRzG3xGPemd2KDrjB4/VtRjS0+kl74lfp+ey/HfK5Gf/ZfhopKT7p+8xXZ9bLRC1aDU9e5oH5iP8smHXoiKQlzyOyBXwnjPnIaBAHoNefShpm1nhRDMW1o/nn65K0DLfGhw/OhHlyz5 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 35afcfcac591..f7498c770035 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 @@ -822,6 +823,7 @@ 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 (!dma_fence_test_signaled_flag(fence) && ret > 0) { if (intr) __set_current_state(TASK_INTERRUPTIBLE); @@ -835,6 +837,7 @@ 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); @@ -924,6 +927,7 @@ 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); @@ -938,6 +942,7 @@ 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