[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>
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@ -3097,10 +3097,21 @@ static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
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static void ata_data_xfer(struct ata_port *ap, unsigned char *buf,
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unsigned int buflen, int do_write)
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{
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if (ap->flags & ATA_FLAG_MMIO)
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ata_mmio_data_xfer(ap, buf, buflen, do_write);
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else
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ata_pio_data_xfer(ap, buf, buflen, do_write);
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/* Make the crap hardware pay the costs not the good stuff */
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if (unlikely(ap->flags & ATA_FLAG_IRQ_MASK)) {
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unsigned long flags;
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local_irq_save(flags);
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if (ap->flags & ATA_FLAG_MMIO)
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ata_mmio_data_xfer(ap, buf, buflen, do_write);
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else
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ata_pio_data_xfer(ap, buf, buflen, do_write);
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local_irq_restore(flags);
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} else {
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if (ap->flags & ATA_FLAG_MMIO)
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ata_mmio_data_xfer(ap, buf, buflen, do_write);
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else
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ata_pio_data_xfer(ap, buf, buflen, do_write);
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}
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}
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/**
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