Messages in this thread Patch in this message | | | Subject | [PATCH 04/13] hpsa: limit commands allocated on reset_devices | From | "Stephen M. Cameron" <> | Date | Fri, 08 Oct 2010 15:06:21 -0500 |
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From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
This is to conserve memory in a memory-limited kdump scenario
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> --- drivers/scsi/hpsa.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 542cb2b..ba2becc 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -3493,6 +3493,11 @@ 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. "
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