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| author | Christoph Hellwig <hch@lst.de> | 2014-11-05 10:36:28 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-27 16:40:24 +0100 |
| commit | 79855d178557cc3e3ffd179fd26a64cef48dfb30 (patch) | |
| tree | 316621212e058975d86cef255e9ec86f70d0deb0 /drivers/scsi/isci/task.h | |
| parent | 309e7cc433e79ba0124e7e359503e66c41b46509 (diff) | |
| download | linux-79855d178557cc3e3ffd179fd26a64cef48dfb30.tar.bz2 | |
libsas: remove task_collector mode
The task_collector mode (or "latency_injector", (C) Dan Willians) is an
optional I/O path in libsas that queues up scsi commands instead of
directly sending it to the hardware. It generall increases latencies
to in the optiomal case slightly reduce mmio traffic to the hardware.
Only the obsolete aic94xx driver and the mvsas driver allowed to use
it without recompiling the kernel, and most drivers didn't support it
at all.
Remove the giant blob of code to allow better optimizations for scsi-mq
in the future.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci/task.h')
| -rw-r--r-- | drivers/scsi/isci/task.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index 9c06cbad1d26..8f4531f22ac2 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -131,7 +131,6 @@ static inline void isci_print_tmf(struct isci_host *ihost, struct isci_tmf *tmf) int isci_task_execute_task( struct sas_task *task, - int num, gfp_t gfp_flags); int isci_task_abort_task( |