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[192.26.29.3]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-42b30f1cc4esm15848003f8f.36.2025.11.10.17.38.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Nov 2025 17:38:32 -0800 (PST) From: Kumar Kartikeya Dwivedi To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Martin KaFai Lau , Eduard Zingerman , kkd@meta.com, kernel-team@meta.com Subject: [PATCH bpf-next v1] rqspinlock: Adjust return value for queue destruction Date: Tue, 11 Nov 2025 01:38:27 +0000 Message-ID: <20251111013827.1853484-1-memxor@gmail.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Return -ETIMEDOUT whenever non-head waiters are signalled by head, and fix oversight in commit 7bd6e5ce5be6 ("rqspinlock: Disable queue destruction for deadlocks"). We no longer signal on deadlocks. Signed-off-by: Kumar Kartikeya Dwivedi --- kernel/bpf/rqspinlock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/rqspinlock.c b/kernel/bpf/rqspinlock.c index b94e258bf2b9..3cc23d79a9fc 100644 --- a/kernel/bpf/rqspinlock.c +++ b/kernel/bpf/rqspinlock.c @@ -537,7 +537,7 @@ int __lockfunc resilient_queued_spin_lock_slowpath(rqspinlock_t *lock, u32 val) val = arch_mcs_spin_lock_contended(&node->locked); if (val == RES_TIMEOUT_VAL) { - ret = -EDEADLK; + ret = -ETIMEDOUT; goto waitq_timeout; } -- 2.51.0