[PATCH 06/11] hpsa: limit commands allocated on reset_devices

[Stephen M. Cameron]

From: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx>

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

Signed-off-by: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx>
---
 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 82b94e2..688b243 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. "

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/