From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B68FD140E3D; Thu, 11 Apr 2024 10:22:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712830944; cv=none; b=TZcTYXaolH8UGPJBEiuCtZ/QqpknQXSURH6kf2v9hFdQjnAAcy3NEL/lg+bhifI6c21JFKqH6dPHxJFtSsPRICGIl6K05uvhEMMWhyC3KM8SZMWFthF0i6gTxInF1YDR6oJuOlZx9Ugg0xcmvBpixtB9NISZeZ1Pvm7tMG3AxzU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712830944; c=relaxed/simple; bh=y89qroPzJvMFcfpoy+TYHxLkZXoWUbVtcE2LuV+40Io=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HvJGWYt9Ehrq8OnQW2mpGDB1CQ3G+2a8e77zFexhs32B2I8sGrZNakj/8MqfKJvQMPvJCGsFVZmkRHLPf07ri9lKd08PdxV37a6oB6MWyj5DaBX4OKsCtKnEgP+bUM8zcT+HrjDnjEEzUJjhs0m6XfcGVZg6o39uaYhcRM92FZw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ActxKux1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ActxKux1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 345BFC43399; Thu, 11 Apr 2024 10:22:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712830944; bh=y89qroPzJvMFcfpoy+TYHxLkZXoWUbVtcE2LuV+40Io=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ActxKux1kJ3Gm+enYqXKYQx32kRZZ30ucR0EidWvH5ApvjaaA3X405ucQ0lWoaqaY 7l6RxgP3xl7md15CLOuYqtJbM48vaHaH5CIpSB1QGyb0DDrAwAQhGlVtvgTH4aacwy 1+Q3/t03DqmmNMqNtJ4wW3Nco1nfYlxcHLhGDjXI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable@kernel.org, Ulrich Weigand , Alexander Gordeev , Sumanth Korikkar , Vasily Gorbik Subject: [PATCH 5.4 171/215] s390/entry: align system call table on 8 bytes Date: Thu, 11 Apr 2024 11:56:20 +0200 Message-ID: <20240411095430.013132399@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240411095424.875421572@linuxfoundation.org> References: <20240411095424.875421572@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sumanth Korikkar commit 378ca2d2ad410a1cd5690d06b46c5e2297f4c8c0 upstream. Align system call table on 8 bytes. With sys_call_table entry size of 8 bytes that eliminates the possibility of a system call pointer crossing cache line boundary. Cc: stable@kernel.org Suggested-by: Ulrich Weigand Reviewed-by: Alexander Gordeev Signed-off-by: Sumanth Korikkar Signed-off-by: Vasily Gorbik Signed-off-by: Greg Kroah-Hartman --- arch/s390/kernel/entry.S | 1 + 1 file changed, 1 insertion(+) --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -1542,6 +1542,7 @@ ENDPROC(cleanup_critical) .quad .Lsie_skip - .Lsie_entry #endif .section .rodata, "a" + .balign 8 #define SYSCALL(esame,emu) .quad __s390x_ ## esame .globl sys_call_table sys_call_table: