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Message-Id: <1364311249-14454-84-git-send-email-luis.henriques@canonical.com> Date: Tue, 26 Mar 2013 15:19:42 +0000 From: Luis Henriques <luis.henriques@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Nicholas Bellinger <nab@...ux-iscsi.org>, Luis Henriques <luis.henriques@...onical.com> Subject: [PATCH 083/150] target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os 3.5.7.9 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Nicholas Bellinger <nab@...ux-iscsi.org> commit f002a24388cc460c8a9be7d446a9871f7c9d52b6 upstream. 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 <azmulx@...ikka.fi> Signed-off-by: Nicholas Bellinger <nab@...ux-iscsi.org> Signed-off-by: Luis Henriques <luis.henriques@...onical.com> --- 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 -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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