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authorKashyap, Desai <kashyap.desai@lsi.com>2009-08-20 07:50:54 (GMT)
committerJames Bottomley <James.Bottomley@suse.de>2009-09-05 14:34:21 (GMT)
commitcd4e12e8ad246ec5bc23ab04d0da0e6985025620 (patch)
treed70dec04648c16b4c04d20935207d38a6eceb6e4 /drivers/scsi/mpt2sas/mpt2sas_base.c
parent69cb48750b02034350bc78d8053647d7464cdde0 (diff)
downloadlinux-cd4e12e8ad246ec5bc23ab04d0da0e6985025620.tar.xz
[SCSI] mpt2sas : Rescan topology from Interrupt context instead of work thread
Following host reset its possible that the controller firmware could assign new handles for devices, as well as adding or deleting devices. There is code in the driver that will rescan the topology folowing host reset; updating device handles, and remove devices that are no longer responding. This patch will improve the responsivness by moving this rescaning from the delayed hotplug worker thread to immediately following the host reset. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Reviewed-by: Eric Moore <Eric.moore@lsi.com> Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_base.c')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 35a1386..cc5a8da 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -3536,5 +3536,8 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
ioc->ioc_reset_in_progress = 0;
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+
+ if (!r)
+ _base_reset_handler(ioc, MPT2_IOC_RUNNING);
return r;
}