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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2006-05-24 14:14:41 +0100
committerJeff Garzik <jeff@garzik.org>2006-05-26 22:02:23 -0400
commit75e995855f45a83afdae34d50c0b3ee14fb23b7a (patch)
tree9909a5bd5129cfa957baf05d475b0bcac3f45f94 /drivers/scsi/libata-core.c
parent622b20fcb8b42aa4c3c87c0a036f2ad0927b64bc (diff)
[PATCH] libata: add pio_data_xfer_noirq
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/scsi/libata-core.c')
-rw-r--r--drivers/scsi/libata-core.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 074a46e5bbdd..f19fe662f0ca 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -3612,6 +3612,30 @@ void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
}
/**
+ * ata_pio_data_xfer_noirq - Transfer data by PIO
+ * @adev: device to target
+ * @buf: data buffer
+ * @buflen: buffer length
+ * @write_data: read/write
+ *
+ * Transfer data from/to the device data register by PIO. Do the
+ * transfer with interrupts disabled.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+
+void ata_pio_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data)
+{
+ unsigned long flags;
+ local_irq_save(flags);
+ ata_pio_data_xfer(adev, buf, buflen, write_data);
+ local_irq_restore(flags);
+}
+
+
+/**
* ata_pio_sector - Transfer ATA_SECT_SIZE (512 bytes) of data.
* @qc: Command on going
*
@@ -5675,6 +5699,7 @@ EXPORT_SYMBOL_GPL(ata_host_stop);
EXPORT_SYMBOL_GPL(ata_interrupt);
EXPORT_SYMBOL_GPL(ata_mmio_data_xfer);
EXPORT_SYMBOL_GPL(ata_pio_data_xfer);
+EXPORT_SYMBOL_GPL(ata_pio_data_xfer_noirq);
EXPORT_SYMBOL_GPL(ata_qc_prep);
EXPORT_SYMBOL_GPL(ata_noop_qc_prep);
EXPORT_SYMBOL_GPL(ata_bmdma_setup);