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=1793111823; b=UyvP8hWsLS4bql3BqgDh4nSCadzrCXh6T7CWMD4VplrW9IoENlzyRH7WlcjQVyw5AdRJ 20V/eg2dlEP4kX5PXtZJL8O9dR4O6XlZdShLQx/TCU1xleFA7mMf5t6f3dSgXymwc9rlc qNc4AH0fVMZQEkupJ6RKlkm7u7F1LOHU/8egnG+Kk8hicR1Y4/Esqt40JCE7mvfWAfllD BEcyfDNtBJSnIp86tV9KeZBCPGuxw9H3otViVp/nbiKOyN0TrQWcC6n/E45BqfyIV+5Rg M4Cf6F1Zo3IRrdecoC+v3VBml2x5DZKK3lonOeZB07wgXdDjphoy9CTBZHqWcsubOFw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793111823; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=FsA8tmbfIUuVNSZg/U5QFwdqA0RAQalVEarSN9OD5fI=; b=L7K84oaVgNWoxKnNYmfueVbsStYqxJvj/C/p2IVZxDIcDluBqTvkn9znqYa77zJva2oV UYBIYZAK6knCIrFinlPeKXa+KVluN5hfOX8W4SyvKvFn5aGryN825UX20vn1AYPJnrfJ4 MNOKqV9hxlVRevyoiOf36wDpOl6qEuwDJU1ltwoNePz3p5AFxn4DIUdcTJtnuOYKLO/cY 6ZPCJIiOYFi40vJfna5DO5Yog8aMRAR7sZjuQfCKBANbuEnTqPhfi3fs4VUVt7OLnZP5X Zgnl3K/51Uv9emuVPYTKLkTMsq1wv9oF/3T45dbeEW342niEMiubBfKUhvQhZ+lIoXQ== 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=AfRmLNPS; 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 22DE6606A320 for ; Tue, 27 Oct 2026 14:37:02 +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=AfRmLNPS Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A5221F031E0; Tue, 27 Oct 2026 14:37:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793111822; bh=FsA8tmbfIUuVNSZg/U5QFwdqA0RAQalVEarSN9OD5fI=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=AfRmLNPSRYYA6SuQKUGNGqJjkerymZMc8/kmR8oMPvYN9AS4GRpez9ayfSghX/LoC Zcfy/6GlTnFlh4li1aQoAwjSmUNZJFj2J4ln2cc7dCjW5ZqFHYERvD4iM9YQE2sK9y Xzfd79mL/jnWgwzON9aidt5byepwmzb8LZsW9wGNF5mrBsL7H5wIcpjRX87n0iE9CM iZHZ3PMkycMKfppE65pGupzH/8tmmA/IAj1RlEqqEcWf3VFT6iXcHiZ1Bks/TC4VdF 4mT650YTXLqF1UvZNJ6S4yY3dlnWAJMvH1xxosIQYO3pXXyKwO2HibSJ2jr3aiVHnI r2qd1Zrari91A== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 02/10] s390/ftrace: 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: <20261027143030.3154657-3-hca@linux.ibm.com> References: <20261027143030.3154657-1-hca@linux.ibm.com> <20261027143030.3154657-3-hca@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 27 Oct 2026 14:37:02 +0000 X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Add ftrace_arch_code_modify_prepare() and extend > ftrace_arch_code_modify_post_process() to acquire and release > text_mutex when ftrace code is modified. >=20 > Also add locking to ftrace_init_nop(). This way s390 uses text_mutex > like e.g. x86 and riscv. >=20 > This is part of larger series where at the end s390_kernel_write() > requires that callers hold text_mutex for serialization. >=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/20261027143030.3154= 657-1-hca@linux.ibm.com?part=3D2