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[SCSI] libata: reset once

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Hotplug testing with libsas currently encounters a 55 second wait for
link recovery to give up.  In the case where the user trusts the
response time of their devices permit the recovery attempts to be
limited to one.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Dan Williams
2012-06-21 23:41:41 -07:00
committed by James Bottomley
parent d9875690d9
commit ca6d43b051
4 changed files with 7 additions and 0 deletions
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2
drivers/ata/libata-eh.c
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@@ -2623,6 +2623,8 @@ int ata_eh_reset(struct ata_link *link, int classify,
*/
while (ata_eh_reset_timeouts[max_tries] != ULONG_MAX)
max_tries++;
if (link->flags & ATA_LFLAG_RST_ONCE)
max_tries = 1;
if (link->flags & ATA_LFLAG_NO_HRST)
hardreset = NULL;
if (link->flags & ATA_LFLAG_NO_SRST)