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 4128C74C09; Mon, 8 Apr 2024 13:24:01 +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=1712582641; cv=none; b=pOMpHbu4ahkRbgTJqQw7PUBJgtS3XV+51z/te7KBGmRUFpL0+A45ok30hPNrH4/p6oI8nE8V6nDzKcVDlMj73K5aEQdv6jlKzfaUts5oO8Mx/9YfUgCJvnGjBz/gmyht8v+WsXDKSBgepodQpYSgXXpb6lcDBXiHz+OqFqVHVsM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712582641; c=relaxed/simple; bh=otaJPD8qbJto1yPyArSgbxgld7Xhg2zTkMOVPrZz0JU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YCBbiZcBEsKzF7+0FVtsE4mIKSEQBn5FqEb5ur/4KLf2ncWGzQz1fT3KNegtPcmAiTcCi1sTy8tMA6o9WC1L/3jIopyuvbVHNdu1dzxxYwm+PZIXZ/A4mvfDyB0CnS1k31WCc+6AZFNrmQOacktuyY8bOGynBHG0LD+yulY2ZcE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=X51xz6IW; 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="X51xz6IW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BB9C2C433F1; Mon, 8 Apr 2024 13:24:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712582641; bh=otaJPD8qbJto1yPyArSgbxgld7Xhg2zTkMOVPrZz0JU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X51xz6IWBAZ6TT9Pusx2uHTYsGuEh4xIiwxIVvTE7X5NbSFpAkXtjdX73OiV30jMG tONVQJLmXgetVJ1NVazy+BEp0Ix6OUOuGrMvMneg/l0nRnvXUpic+8i/x/R0JTiIGt jL9eqcvSzbv9tHvICvBI+zpahxR8bKlk2DI3xXeo= 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 6.1 122/138] s390/entry: align system call table on 8 bytes Date: Mon, 8 Apr 2024 14:58:56 +0200 Message-ID: <20240408125300.027541393@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125256.218368873@linuxfoundation.org> References: <20240408125256.218368873@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-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 @@ -699,6 +699,7 @@ ENDPROC(stack_overflow) .Lthis_cpu: .short 0 .Lstosm_tmp: .byte 0 .section .rodata, "a" + .balign 8 #define SYSCALL(esame,emu) .quad __s390x_ ## esame .globl sys_call_table sys_call_table: