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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 10/47] dept: distinguish each work from another Date: Thu, 2 Oct 2025 17:12:10 +0900 Message-Id: <20251002081247.51255-11-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: H4sIAAAAAAAAAzWSbUxTdxjF97/3f+9tG2vuKnN3atQ1kmVEnC7gni2L0Zi46z6ZbIsJTqWx N7bhzbRaZNEFhTrUogUHNa3WWrQgLdBQNb6AQSIYRaTgps2k1M6uQEhrNlsMDKi3GL/9cs5z zvnySEjFM2qJRFu8X9AVqwqVtAzLYgsuZstzRjRrba25kExUYTjX5qHB3+pGEEpWITDeTGFI TD1n4LV3joa6cIQGy/gRDK9cJgTWqI2B8Z7vIBa6TYErMkdApOs3BLP1BXDB6aPh//4BEi6G gySMeUX9au8Igs6mozQ8iSyE2OA5AuJeGhxHOyk4b6tFUNHQRkP9+XYMgxMzBAzX1xIQckUx 9JmdhDhMg80yRsCUq5mBRw3DGFzlmTATXgcpRwn0ukcZCJ6uw9AaG6DgwchTCiaitTSE7h+j IPFHmACPKUpC1a0khvaXols1m0DQe+NvAkzeaxSMeFIU+Lv6xKz1CoaBWy0UhF8EKJg8tRT8 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hKjXOAyvBGGneeqxl1UDGgXRU3rpUuSo8JaskWwui5FOByOTdlLkGBaOBKdBOpg44D9ZcDqvfPcTuUBxLocZeUacKWkx6D0D1c9kdSWSGt5Wl6yaUa/OEZcdJNw== 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: Workqueue already provides concurrency control. By that, any wait in a work doesn't prevents events in other works with the control enabled. Thus, each work would better be considered a different context. So let dept assign a different context id to each work. Signed-off-by: Byungchul Park --- kernel/workqueue.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index c6b79b3675c3..0e05648b4501 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -55,6 +55,7 @@ #include #include #include +#include #include "workqueue_internal.h" @@ -3153,6 +3154,8 @@ __acquires(&pool->lock) lockdep_copy_map(&lockdep_map, &work->lockdep_map); #endif + dept_update_cxt(); + /* ensure we're on the correct CPU */ WARN_ON_ONCE(!(pool->flags & POOL_DISASSOCIATED) && raw_smp_processor_id() != pool->cpu); -- 2.17.1