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=1793016983; b=vx7+zT4FQJa4qDb2161yYY7GsWe5ihuySiXFmHYBWci2wwKa9Q2EFTWRv2wBZvmHAth3 nD2PTKIb28JMFEV++94VNdYKCpOsXqWWNUHnz4IrwsMf10mWGCplS5UonfFKkTSXjRgfU 2Zbi5I9f03FhjsX3NZsRZ8wcqIpjGcjRh4xOa/nrOPnqaVDh+RQXZOFWmAJFlRdq2S6ak loCjq3DwiZDD67sAq35UipsiNhNKxWABdfc6QkN7mnAT/WUxhq0wVVIZhvLyJfwa5QzmA 740Hrw2c9EqOjjQn/HSutAi2ZWgsqguef6236LzKGsU1L0iHcD7LHJ4XdnO84adVM3A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793016983; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=DmRb7Ob3Uad8Xl3ifc03AHO9+P4IzbVnwQ2Tqs8U1Fo=; b=hhUbZWMOKa1/heLjohEjrN4SK/ULn6EOYnphDxHPJ938bvUBk3ehJ5IcNd9yp7fxrGkB NwCjF2xiAnPv2DW8KED8not1yBmVgGVcNJaSsQTPsL4Y0pPcoxrxKfQySOI+OE6SKtxOx QaqT3GjafD/1QOBbW+Xv5S7khbKbUTvMfz7i+C9c6OEh1ldAMwE6R4/QuIqj9Cuqltspr HF1eo+1q5IEW0nwmXpOkc85Y/bio7UC2lY5yPXOw/pJMm9bq13a2I1AWztKi0Vhl+7xlZ aNWKeJ4gsLjc84/U9G68CQ98TQcjdGeImM/L2NlNP2eGAroCmGpNLrcKH4XbJA521gg== 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=QtMuG3W5; 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 7C018606A31E for ; Mon, 26 Oct 2026 12:16:23 +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=QtMuG3W5 Received: by smtp.kernel.org (Postfix) with ESMTPSA id E19591F01825; Mon, 26 Oct 2026 12:16:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793016983; bh=DmRb7Ob3Uad8Xl3ifc03AHO9+P4IzbVnwQ2Tqs8U1Fo=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=QtMuG3W5hG+6ijY4VR9znH1fVsZvKYjHRtc+1LR4/HUmvmiqER4bK/v8/WNRfd7ZV LyXR861UADi+ODYA3IJ+7teFzIgh2B/MvyM4n6OhrZmq+BCS7bkegZo+Lr+nWlIKXB E4jqcdpbFroyuDzXyVdDesqXMRjqx9v0tVjGAY37z4iBrD1Y86UvK0iE2ulXgoZq3e EDvqKb5/AAyBy+xSkGVRJe7L/t1AGQfOwGU7j/asv8k8ZP3T8rOLizgnbuOaQr6B5F 1XohS/39RK2mxlWFLhzbd7fa/xjKHf/tpx9gJi9riDcFYY6GVzkVMJXWAKfGSprQ7U k/lE8+Qp/k6CQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 1/4] s390/jump_label: Serialize text patching with text_mutex Reply-To: sashiko-reviews@lists.linux.dev To: "Heiko Carstens" Cc: linux-s390@vger.kernel.org, "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261026120329.1792436-2-hca@linux.ibm.com> References: <20261026120329.1792436-1-hca@linux.ibm.com> <20261026120329.1792436-2-hca@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 26 Oct 2026 12:16:22 +0000 X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Acquire text_mutex around the verify-then-patch sequence in > jump_label_transform(). This way s390 uses text_mutex like other > architectures and does not need to rely on other implicit semantics > (e.g. no kprobe can be set on a jump label). >=20 > This is a prereq for removing the spinlock in __s390_kernel_write(). >=20 > Signed-off-by: Heiko Carstens Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261026120329.1792= 436-1-hca@linux.ibm.com?part=3D1