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[SCSI] megaraid_sas: Fix reglockFlags for degraded raid5/6

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The following patch for megaraid_sas fixes the reglockFlags field for
degraded raid5/6 for MR9360/9380, which will result in a performance
improvement.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
adam radford 2012-01-06 17:02:26 -08:00 committed by James Bottomley
parent 775bf27738
commit 0d4c24cc1b
1 changed files with 3 additions and 1 deletions
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4
drivers/scsi/megaraid/megaraid_sas_fp.c
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@ -282,7 +282,9 @@ u8 MR_GetPhyParams(struct megasas_instance *instance, u32 ld, u64 stripRow,
else {
*pDevHandle = MR_PD_INVALID; /* set dev handle as invalid. */
if ((raid->level >= 5) &&
(instance->pdev->device != PCI_DEVICE_ID_LSI_INVADER))
((instance->pdev->device != PCI_DEVICE_ID_LSI_INVADER) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER &&
raid->regTypeReqOnRead != REGION_TYPE_UNUSED)))
pRAID_Context->regLockFlags = REGION_TYPE_EXCLUSIVE;
else if (raid->level == 1) {
/* Get alternate Pd. */