---

yaml --- r: 18850 b: refs/heads/master c: a1bd9e6 h: refs/heads/master v: v3
git-mirror · Jan 18, 2006 · 6db6bf4 · 6db6bf4
1 parent cdf3dc0
commit 6db6bf4
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Showing 2 changed files with 16 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9d824d0710a9e780451533ae4c5cdc5c2ff9062e
+refs/heads/master: a1bd9e68573239320d18823c73eb06d8e56cc9e2
diff --git a/trunk/drivers/scsi/libata-core.c b/trunk/drivers/scsi/libata-core.c
@@ -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);
+	}
 }
 
 /**