libata: add @ap to ata_wait_register() and introduce ata_msleep()
Add optional @ap argument to ata_wait_register() and replace msleep()
calls with ata_msleep() which take optional @ap in addition to the
duration. These will be used to implement EH exclusion.
This patch doesn't cause any behavior difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 193f242..14d18bf 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -222,7 +222,7 @@
timeout = ata_deadline(timer_start, tmout_pat);
while (status != 0xff && (status & ATA_BUSY) &&
time_before(jiffies, timeout)) {
- msleep(50);
+ ata_msleep(ap, 50);
status = ata_sff_busy_wait(ap, ATA_BUSY, 3);
}
@@ -234,7 +234,7 @@
timeout = ata_deadline(timer_start, tmout);
while (status != 0xff && (status & ATA_BUSY) &&
time_before(jiffies, timeout)) {
- msleep(50);
+ ata_msleep(ap, 50);
status = ap->ops->sff_check_status(ap);
}
@@ -360,7 +360,7 @@
if (wait) {
if (can_sleep && ap->link.device[device].class == ATA_DEV_ATAPI)
- msleep(150);
+ ata_msleep(ap, 150);
ata_wait_idle(ap);
}
}
@@ -1356,7 +1356,7 @@
*/
status = ata_sff_busy_wait(ap, ATA_BUSY, 5);
if (status & ATA_BUSY) {
- msleep(2);
+ ata_msleep(ap, 2);
status = ata_sff_busy_wait(ap, ATA_BUSY, 10);
if (status & ATA_BUSY) {
ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE);
@@ -1937,7 +1937,7 @@
unsigned int dev1 = devmask & (1 << 1);
int rc, ret = 0;
- msleep(ATA_WAIT_AFTER_RESET);
+ ata_msleep(ap, ATA_WAIT_AFTER_RESET);
/* always check readiness of the master device */
rc = ata_sff_wait_ready(link, deadline);
@@ -1966,7 +1966,7 @@
lbal = ioread8(ioaddr->lbal_addr);
if ((nsect == 1) && (lbal == 1))
break;
- msleep(50); /* give drive a breather */
+ ata_msleep(ap, 50); /* give drive a breather */
}
rc = ata_sff_wait_ready(link, deadline);