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authorArjan van de Ven <arjan@infradead.org>2009-05-13 15:02:42 +0100
committerJeff Garzik <jgarzik@redhat.com>2009-06-10 11:05:34 -0400
commit517d3cc15b36392e518abab6bacbb72089658313 (patch)
tree9a3565de854416352468cd1adc6666cc45eed3bc /drivers/ata
parent7f4774b38ee6270bbc6c3015cb3fa6c415ffb340 (diff)
downloadlinux-517d3cc15b36392e518abab6bacbb72089658313.tar.gz
[libata] ata_piix: Enable parallel scan
This patch turns on parallel scanning for the ata_piix driver.
This driver is used on most netbooks (no AHCI for cheap storage it seems).
The scan is the dominating time factor in the kernel boot for these
devices; with this flag it gets cut in half for the device I used
for testing (eeepc).
Alan took a look at the driver source and concluded that it ought to be safe
to do for this driver.  Alan has also checked with the hardware team.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/ata_piix.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 6e165bf91d65..d0a14cf2bd74 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1589,6 +1589,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev,
 		host->ports[1]->mwdma_mask = 0;
 		host->ports[1]->udma_mask = 0;
 	}
+	host->flags |= ATA_HOST_PARALLEL_SCAN;
 
 	pci_set_master(pdev);
 	return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht);