[SCSI] hpsa: refine interrupt handler locking for greater concurrency

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Use spinlocks with finer granularity in the submission and
completion paths to allow concurrent execution for multiple
reply queues.  In particular, do not hold a spin lock while
submitting a request to the device, nor during most of the
interrupt handler.

Signed-off-by: Matt Gates <matthew.gates@hp.com>
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

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Matt Gates 2012-05-01 11:43:11 -05:00 • committed by James Bottomley

parent 254f796b9f

commit e16a33adc0

2 changed files with 48 additions and 26 deletions

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61

drivers/scsi/hpsa.c

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13

drivers/scsi/hpsa.h

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