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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-03-18 13:15:57 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-28 12:17:48 -0700 |
| commit | 12fe6f137e304b53e6104880b3a25a2919f912a9 (patch) | |
| tree | 3fca7947125c0301bd14df5cf7d6cdc879134715 | |
| parent | 36dd1474a1b29616381b16a7f1b3fbb430e2d44f (diff) | |
| download | linux-stable-12fe6f137e304b53e6104880b3a25a2919f912a9.tar.gz linux-stable-12fe6f137e304b53e6104880b3a25a2919f912a9.tar.bz2 linux-stable-12fe6f137e304b53e6104880b3a25a2919f912a9.zip | |
target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os
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@netikka.fi>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/target/target_core_file.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h index bc02b018ae46..37ffc5bd2399 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 |