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[PATCH] libata: Code for the IRQ mask flag 

Signed-off-by: Alan Cox <alan@redhat.com>

Somewhat cleaner in the resync as someone cleaned up the pio xfer users
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Alan Cox 2006-01-17 20:53:50 +00:00 committed by Jeff Garzik
parent 9d824d0710
commit a1bd9e6857
1 changed files with 15 additions and 4 deletions
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19
drivers/scsi/libata-core.c
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@ -3097,10 +3097,21 @@ static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
static void ata_data_xfer(struct ata_port *ap, unsigned char *buf,
unsigned int buflen, int do_write)
{
if (ap->flags & ATA_FLAG_MMIO)
ata_mmio_data_xfer(ap, buf, buflen, do_write);
else
ata_pio_data_xfer(ap, buf, buflen, do_write);
/* Make the crap hardware pay the costs not the good stuff */
if (unlikely(ap->flags & ATA_FLAG_IRQ_MASK)) {
unsigned long flags;
local_irq_save(flags);
if (ap->flags & ATA_FLAG_MMIO)
ata_mmio_data_xfer(ap, buf, buflen, do_write);
else
ata_pio_data_xfer(ap, buf, buflen, do_write);
local_irq_restore(flags);
} else {
if (ap->flags & ATA_FLAG_MMIO)
ata_mmio_data_xfer(ap, buf, buflen, do_write);
else
ata_pio_data_xfer(ap, buf, buflen, do_write);
}
}
/**