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| author | Stephen M. Cameron <scameron@beardog.cce.hp.com> | 2011-01-06 14:48:13 -0600 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-01-24 11:29:58 -0600 |
| commit | 72ceeaecb748dff3d35b10d7518bed651b895f3e (patch) | |
| tree | 20dc839743fe60bcdd19921e539d90b5e1df1472 /drivers/scsi/hpsa.c | |
| parent | 270d05de2b8d82df4ed19955f6c0c7400f6ffbf5 (diff) | |
| download | blackbird-op-linux-72ceeaecb748dff3d35b10d7518bed651b895f3e.tar.gz blackbird-op-linux-72ceeaecb748dff3d35b10d7518bed651b895f3e.zip | |
[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 <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/hpsa.c')
| -rw-r--r-- | 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 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. " |
