scsi: scsi_debug: Weaken rwlock around ramdisk access

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The design of this driver is to do any ramdisk access on the same thread
that invoked the queuecommand() call. That is assumed to be user space
context. The command duration is implemented by setting the delay with a
high resolution timer. The hr timer's callback may well be in interrupt
context, but it doesn't touch the ramdisk. So try removing the
_irqsave()/_irqrestore() portion on the read-write lock that protects
ramdisk access.

Link: https://lore.kernel.org/r/20200421151424.32668-5-dgilbert@interlog.com
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Douglas Gilbert 2020-04-21 11:14:20 -04:00 • committed by Martin K. Petersen

parent c3e2fe9222

commit 67da413f26

1 changed files with 18 additions and 29 deletions

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drivers/scsi/scsi_debug.c

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