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scsi: aacraid: Skip schedule rescan in case of kdump 

There is a chance of the driver to be stuck in kdump if drives start
acting up in kdump discovery process and the kernel decides to send eh
resets, which would prompt rescan to be scheduled.

Do not perform a rescan in kdump context, since we do not expect a hotplug
event during kdump and all the devices are going to go away anyway.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Raghava Aditya Renukunta 2017-12-26 20:34:48 -08:00 committed by Martin K. Petersen
parent 8a30e50b72
commit fe5237590b
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/aacraid/commsup.c
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@ -33,6 +33,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/crash_dump.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/pci.h>
@ -1675,7 +1676,7 @@ out:
* Issue bus rescan to catch any configuration that might have
* occurred
*/
if (!retval) {
if (!retval && !is_kdump_kernel()) {
dev_info(&aac->pdev->dev, "Scheduling bus rescan\n");
aac_schedule_safw_scan_worker(aac);
}