From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934344Ab3DKUbp (ORCPT ); Thu, 11 Apr 2013 16:31:45 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:5882 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759177Ab3DKU0Q (ORCPT ); Thu, 11 Apr 2013 16:26:16 -0400 X-Authority-Analysis: v=2.0 cv=F+XVh9dN c=1 sm=0 a=rXTBtCOcEpjy1lPqhTCpEQ==:17 a=mNMOxpOpBa8A:10 a=Ciwy3NGCPMMA:10 a=I8clSAwXQwEA:10 a=5SG0PmZfjMsA:10 a=bbbx4UPp9XUA:10 a=meVymXHHAAAA:8 a=L2RovhSkd_0A:10 a=z11f-joXAAAA:8 a=VwQbUJbxAAAA:8 a=a2lwGOApAAAA:8 a=U3ardj3JYD-QTbrvxZIA:9 a=MJMu1F_l1n8A:10 a=CJVq-v20pXUA:10 a=jeBq3FmKZ4MA:10 a=01V5qQrAQNsA:10 a=rXTBtCOcEpjy1lPqhTCpEQ==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 74.67.115.198 Message-Id: <20130411202554.019071242@goodmis.org> User-Agent: quilt/0.60-1 Date: Thu, 11 Apr 2013 16:25:51 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Viljami Ilola , Nicholas Bellinger Subject: [ 048/171 ] target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os References: <20130411202503.783159048@goodmis.org> Content-Disposition: inline; filename=0048-target-file-Bump-FD_MAX_SECTORS-to-2048-to-handle-1M.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.6.11.2 stable review patch. If anyone has any objections, please let me know. ------------------ From: Nicholas Bellinger [ Upstream commit f002a24388cc460c8a9be7d446a9871f7c9d52b6 ] This patch bumps the default FILEIO backend FD_MAX_SECTORS value from 1024 -> 2048 in order to allow block_size=512 to handle 1M sized I/Os. The current default rejects I/Os larger than 512K in sbc_parse_cdb(): [12015.915146] SCSI OP 2ah with too big sectors 1347 exceeds backend hw_max_sectors: 1024 [12015.977744] SCSI OP 2ah with too big sectors 2048 exceeds backend hw_max_sectors: 1024 This issue is present in >= v3.5 based kernels, introduced after the removal of se_task logic. Reported-by: Viljami Ilola Cc: Signed-off-by: Nicholas Bellinger Signed-off-by: Steven Rostedt --- drivers/target/target_core_file.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h index 876ae53..291f66e 100644 --- a/drivers/target/target_core_file.h +++ b/drivers/target/target_core_file.h @@ -7,7 +7,7 @@ #define FD_DEVICE_QUEUE_DEPTH 32 #define FD_MAX_DEVICE_QUEUE_DEPTH 128 #define FD_BLOCKSIZE 512 -#define FD_MAX_SECTORS 1024 +#define FD_MAX_SECTORS 2048 #define RRF_EMULATE_CDB 0x01 #define RRF_GOT_LBA 0x02 -- 1.7.10.4