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scsi: megaraid_sas: Fix msleep granularity

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[ Upstream commit 9155cf30a3 ]

In megasas_transition_to_ready() driver waits 180seconds for controller to
change FW state. Here we are calling msleep(1) in a loop for this.  As
explained in timers-howto.txt, msleep(1) will actually sleep longer than
1ms. If a faulty controller is connected, we will end up waiting for much
more than 180 seconds causing unnecessary delays during load.

Change the granularity of msleep() call from 1ms to 1000ms.

Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shivasharan S
2018-10-16 23:37:41 -07:00
committed by Greg Kroah-Hartman
parent c05a29f73e
commit d13ad591bd
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/megaraid/megaraid_sas_base.c
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@@ -3694,12 +3694,12 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
/*
* The cur_state should not last for more than max_wait secs
*/
for (i = 0; i < (max_wait * 1000); i++) {
for (i = 0; i < max_wait; i++) {
curr_abs_state = instance->instancet->
read_fw_status_reg(instance->reg_set);
if (abs_state == curr_abs_state) {
msleep(1);
msleep(1000);
} else
break;
}