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[S390] subchannel lock conversion.

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Convert the subchannel lock to a pointer to a lock.  Needed for the dynamic
subchannel mapping patch.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck
2006-12-08 15:54:26 +01:00
committed by Martin Schwidefsky
parent 7674da77cb
commit 2ec2298412
6 changed files with 98 additions and 63 deletions
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28
drivers/s390/cio/device_ops.c
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@@ -316,9 +316,9 @@ __ccw_device_retry_loop(struct ccw_device *cdev, struct ccw1 *ccw, long magic, _
ccw_device_set_timeout(cdev, 0);
if (ret == -EBUSY) {
/* Try again later. */
spin_unlock_irq(&sch->lock);
spin_unlock_irq(sch->lock);
msleep(10);
spin_lock_irq(&sch->lock);
spin_lock_irq(sch->lock);
continue;
}
if (ret != 0)
@@ -326,12 +326,12 @@ __ccw_device_retry_loop(struct ccw_device *cdev, struct ccw1 *ccw, long magic, _
break;
/* Wait for end of request. */
cdev->private->intparm = magic;
spin_unlock_irq(&sch->lock);
spin_unlock_irq(sch->lock);
wait_event(cdev->private->wait_q,
(cdev->private->intparm == -EIO) ||
(cdev->private->intparm == -EAGAIN) ||
(cdev->private->intparm == 0));
spin_lock_irq(&sch->lock);
spin_lock_irq(sch->lock);
/* Check at least for channel end / device end */
if (cdev->private->intparm == -EIO) {
/* Non-retryable error. */
@@ -342,9 +342,9 @@ __ccw_device_retry_loop(struct ccw_device *cdev, struct ccw1 *ccw, long magic, _
/* Success. */
break;
/* Try again later. */
spin_unlock_irq(&sch->lock);
spin_unlock_irq(sch->lock);
msleep(10);
spin_lock_irq(&sch->lock);
spin_lock_irq(sch->lock);
} while (1);
return ret;
@@ -389,7 +389,7 @@ read_dev_chars (struct ccw_device *cdev, void **buffer, int length)
return ret;
}
spin_lock_irq(&sch->lock);
spin_lock_irq(sch->lock);
/* Save interrupt handler. */
handler = cdev->handler;
/* Temporarily install own handler. */
@@ -406,7 +406,7 @@ read_dev_chars (struct ccw_device *cdev, void **buffer, int length)
/* Restore interrupt handler. */
cdev->handler = handler;
spin_unlock_irq(&sch->lock);
spin_unlock_irq(sch->lock);
clear_normalized_cda (rdc_ccw);
kfree(rdc_ccw);
@@ -463,7 +463,7 @@ read_conf_data_lpm (struct ccw_device *cdev, void **buffer, int *length, __u8 lp
rcd_ccw->count = ciw->count;
rcd_ccw->flags = CCW_FLAG_SLI;
spin_lock_irq(&sch->lock);
spin_lock_irq(sch->lock);
/* Save interrupt handler. */
handler = cdev->handler;
/* Temporarily install own handler. */
@@ -480,7 +480,7 @@ read_conf_data_lpm (struct ccw_device *cdev, void **buffer, int *length, __u8 lp
/* Restore interrupt handler. */
cdev->handler = handler;
spin_unlock_irq(&sch->lock);
spin_unlock_irq(sch->lock);
/*
* on success we update the user input parms
@@ -537,7 +537,7 @@ ccw_device_stlck(struct ccw_device *cdev)
kfree(buf);
return -ENOMEM;
}
spin_lock_irqsave(&sch->lock, flags);
spin_lock_irqsave(sch->lock, flags);
ret = cio_enable_subchannel(sch, 3);
if (ret)
goto out_unlock;
@@ -559,9 +559,9 @@ ccw_device_stlck(struct ccw_device *cdev)
goto out_unlock;
}
cdev->private->irb.scsw.actl |= SCSW_ACTL_START_PEND;
spin_unlock_irqrestore(&sch->lock, flags);
spin_unlock_irqrestore(sch->lock, flags);
wait_event(cdev->private->wait_q, cdev->private->irb.scsw.actl == 0);
spin_lock_irqsave(&sch->lock, flags);
spin_lock_irqsave(sch->lock, flags);
cio_disable_subchannel(sch); //FIXME: return code?
if ((cdev->private->irb.scsw.dstat !=
(DEV_STAT_CHN_END|DEV_STAT_DEV_END)) ||
@@ -572,7 +572,7 @@ ccw_device_stlck(struct ccw_device *cdev)
out_unlock:
kfree(buf);
kfree(buf2);
spin_unlock_irqrestore(&sch->lock, flags);
spin_unlock_irqrestore(sch->lock, flags);
return ret;
}