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[SCSI] hpsa: limit commands allocated on reset_devices

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This is to conserve memory in a memory-limited kdump scenario

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Stephen M. Cameron 2011-01-06 14:48:13 -06:00 committed by James Bottomley
parent 270d05de2b
commit 72ceeaecb7
1 changed files with 5 additions and 0 deletions
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5
drivers/scsi/hpsa.c
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@ -3470,6 +3470,11 @@ static int __devinit hpsa_find_cfgtables(struct ctlr_info *h)
static void __devinit hpsa_get_max_perf_mode_cmds(struct ctlr_info *h)
{
h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
/* Limit commands in memory limited kdump scenario. */
if (reset_devices && h->max_commands > 32)
h->max_commands = 32;
if (h->max_commands < 16) {
dev_warn(&h->pdev->dev, "Controller reports "
"max supported commands of %d, an obvious lie. "