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Diffstat (limited to 'drivers/s390/block/dasd.c')
-rw-r--r--drivers/s390/block/dasd.c28
1 files changed, 20 insertions, 8 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 62787393a209..1141a5963b67 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -7,7 +7,7 @@
7 * Bugreports.to..: <Linux390@de.ibm.com> 7 * Bugreports.to..: <Linux390@de.ibm.com>
8 * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999-2001 8 * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999-2001
9 * 9 *
10 * $Revision: 1.169 $ 10 * $Revision: 1.172 $
11 */ 11 */
12 12
13#include <linux/config.h> 13#include <linux/config.h>
@@ -1224,6 +1224,12 @@ __dasd_start_head(struct dasd_device * device)
1224 if (list_empty(&device->ccw_queue)) 1224 if (list_empty(&device->ccw_queue))
1225 return; 1225 return;
1226 cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list); 1226 cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list);
1227 /* check FAILFAST */
1228 if (device->stopped & ~DASD_STOPPED_PENDING &&
1229 test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags)) {
1230 cqr->status = DASD_CQR_FAILED;
1231 dasd_schedule_bh(device);
1232 }
1227 if ((cqr->status == DASD_CQR_QUEUED) && 1233 if ((cqr->status == DASD_CQR_QUEUED) &&
1228 (!device->stopped)) { 1234 (!device->stopped)) {
1229 /* try to start the first I/O that can be started */ 1235 /* try to start the first I/O that can be started */
@@ -1750,8 +1756,10 @@ dasd_exit(void)
1750 * SECTION: common functions for ccw_driver use 1756 * SECTION: common functions for ccw_driver use
1751 */ 1757 */
1752 1758
1753/* initial attempt at a probe function. this can be simplified once 1759/*
1754 * the other detection code is gone */ 1760 * Initial attempt at a probe function. this can be simplified once
1761 * the other detection code is gone.
1762 */
1755int 1763int
1756dasd_generic_probe (struct ccw_device *cdev, 1764dasd_generic_probe (struct ccw_device *cdev,
1757 struct dasd_discipline *discipline) 1765 struct dasd_discipline *discipline)
@@ -1770,8 +1778,10 @@ dasd_generic_probe (struct ccw_device *cdev,
1770 return ret; 1778 return ret;
1771} 1779}
1772 1780
1773/* this will one day be called from a global not_oper handler. 1781/*
1774 * It is also used by driver_unregister during module unload */ 1782 * This will one day be called from a global not_oper handler.
1783 * It is also used by driver_unregister during module unload.
1784 */
1775void 1785void
1776dasd_generic_remove (struct ccw_device *cdev) 1786dasd_generic_remove (struct ccw_device *cdev)
1777{ 1787{
@@ -1798,9 +1808,11 @@ dasd_generic_remove (struct ccw_device *cdev)
1798 dasd_delete_device(device); 1808 dasd_delete_device(device);
1799} 1809}
1800 1810
1801/* activate a device. This is called from dasd_{eckd,fba}_probe() when either 1811/*
1812 * Activate a device. This is called from dasd_{eckd,fba}_probe() when either
1802 * the device is detected for the first time and is supposed to be used 1813 * the device is detected for the first time and is supposed to be used
1803 * or the user has started activation through sysfs */ 1814 * or the user has started activation through sysfs.
1815 */
1804int 1816int
1805dasd_generic_set_online (struct ccw_device *cdev, 1817dasd_generic_set_online (struct ccw_device *cdev,
1806 struct dasd_discipline *discipline) 1818 struct dasd_discipline *discipline)
@@ -1917,7 +1929,6 @@ dasd_generic_notify(struct ccw_device *cdev, int event)
1917 if (cqr->status == DASD_CQR_IN_IO) 1929 if (cqr->status == DASD_CQR_IN_IO)
1918 cqr->status = DASD_CQR_FAILED; 1930 cqr->status = DASD_CQR_FAILED;
1919 device->stopped |= DASD_STOPPED_DC_EIO; 1931 device->stopped |= DASD_STOPPED_DC_EIO;
1920 dasd_schedule_bh(device);
1921 } else { 1932 } else {
1922 list_for_each_entry(cqr, &device->ccw_queue, list) 1933 list_for_each_entry(cqr, &device->ccw_queue, list)
1923 if (cqr->status == DASD_CQR_IN_IO) { 1934 if (cqr->status == DASD_CQR_IN_IO) {
@@ -1927,6 +1938,7 @@ dasd_generic_notify(struct ccw_device *cdev, int event)
1927 device->stopped |= DASD_STOPPED_DC_WAIT; 1938 device->stopped |= DASD_STOPPED_DC_WAIT;
1928 dasd_set_timer(device, 0); 1939 dasd_set_timer(device, 0);
1929 } 1940 }
1941 dasd_schedule_bh(device);
1930 ret = 1; 1942 ret = 1;
1931 break; 1943 break;
1932 case CIO_OPER: 1944 case CIO_OPER: