From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792783155; b=hYwl+mCoQXS6DVqs7Z7uKe/1C80Ucawti7JYuksMyhQjbL8mXkjVPmU1aFOHtBveEad7 c3NdxnuJbiDyORh3FXVyE5mP/3D3HNLsM96CvnLA52S3GjKzoUd8BVlbRRRN3ewmYHr0v G7hoqUG4EFXOc2tx9chu9DMLy9iBXxOhuLv4/ONeNYkxKF8oSLCXtNrE6iPSYLjhV2W8B m8PluWNS1W6Yls+F2th8R/DeCXTNFurXlDt0ipuZw0F5fkii4uNr6wADIKanhwOxxW+qH 4HvQ+vFgQxbKA6g9qXejhCNp8s86MaxOjZaOyOWS3at+S2vn5gPed7XUinPetatzftQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792783155; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=QNr9n43g1BCD0KMBddSA4OeVl4LEtg6GlLAFYFb9Glw=; b=0insmn6oTW1OhImJs/HsUqoASB+hkCJ0TXEaRwlrpmjRUf3tWQ/EazfoM96V8tczyj1K hW6BZvBxNFMmLG9fiWNbJhOIzKsKITF/5MPtcIU5fVdHq+N+ZAjXdyoAgL9JIRHhcQ2Hc prayNf8i4SAbY6rD2vVfvtlExf0srQNdMabRL7ADbYBBKPwJYohBq/Yds2xeQFhDYeEHG qEt+XQf8hSOT8Aei03gpf8GrdGYBZkFeGuAHDKkYsuSJ2YbtWQLjM+3V8wtCXBQa8Ip8Z dF0MjxNDCb8RUnQW/oZwVodw0T5plj+ZuIAf4vTW87HHaCWGMLCvMlHFx7y86homL+w== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=VTSHgR8t; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 49E13606A31A for ; Fri, 23 Oct 2026 19:19:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=VTSHgR8t Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0B911F01825; Fri, 23 Oct 2026 19:19:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792783154; bh=QNr9n43g1BCD0KMBddSA4OeVl4LEtg6GlLAFYFb9Glw=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=VTSHgR8tHAjjPqIg40UpnYj0Jw83OftNqJ17dmQXlEwPhVbqod9fCrIFrx9GTET2m VS398uXA+SsGtAC7Fq+XUJX2zi54oUfU8pLBS3Ml1l56wFNCStq9bJ779cXkHJInTx Vz9XVvxJWbZyJDpmC2zRP6RkTxrWUubVv9ojUU/E1tRrIjvdLUL1zJGLHkERGhNibK XaZO3EU26lroqdtJjz8NWBumGPvUEnHN2LvdTIWc1TgTFxOsPIq8bhs8OI8jtpfrHn P5aNZFZD8zMs1ZCSMgtetWo8UTK1I4DDDzVshV4lFz9vlipmsXzB0p5j7GEd35RQss /JMvq9tDwQ7EA== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v7 04/11] perf lock contention: Extend get_lock_owner() for rt_mutex and mutex handoff Reply-To: sashiko-reviews@lists.linux.dev To: "Ian Rogers" Cc: linux-perf-users@vger.kernel.org In-Reply-To: <20261023190558.3050796-5-irogers@google.com> References: <20261022203003.1779152-1-irogers@google.com> <20261023190558.3050796-1-irogers@google.com> <20261023190558.3050796-5-irogers@google.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 23 Oct 2026 19:19:14 +0000 X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Extend get_lock_owner() in tools/perf/util/bpf_skel/lock_data.h to: > - Support rt_mutex locks (LCB_F_RT) and CONFIG_PREEMPT_RT mutexes via > struct rt_mutex_base and struct rt_mutex___old, masking out the low > waiter bit (0x1UL). > - Return NULL when a mutex has MUTEX_FLAG_HANDOFF (0x4UL) set on > owner.counter and is in the middle of being handed off rather than > actively held. >=20 > Also add rw_semaphore.count and struct rt_mutex_base to the fallback > tools/perf/util/bpf_skel/vmlinux/vmlinux.h. >=20 > Signed-off-by: Ian Rogers Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261023190558.3050= 796-1-irogers@google.com?part=3D4