From 72ceeaecb748dff3d35b10d7518bed651b895f3e Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Thu, 6 Jan 2011 14:48:13 -0600 Subject: [PATCH] [SCSI] hpsa: limit commands allocated on reset_devices This is to conserve memory in a memory-limited kdump scenario Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 82b94e2c745b..688b24333a6f 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -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. " -- GitLab