linux/drivers/s390
Sebastian Ott 56e6b796fe [S390] cio: fix quiesce state
DEV_STATE_QUIESCE is used to stop all IO on a busy subchannel.
This patch fixes the following problems related to the QUIESCE
state:

* Fix a potential race condition which could occur when the
resulting state was DEV_STATE_OFFLINE.

* Add missing locking around cio_disable_subchannel,
ccw_device_cancel_halt_clear and the cdev's handler.

* Loop until we know for sure that the subchannel is disabled.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:32 +01:00
..
block [S390] cio: split PGID settings and status 2009-12-07 12:51:31 +01:00
char [S390] cio: split PGID settings and status 2009-12-07 12:51:31 +01:00
cio [S390] cio: fix quiesce state 2009-12-07 12:51:32 +01:00
crypto [S390] zcrypt: Improve some comments 2009-10-06 10:35:09 +02:00
kvm [S390] kvm: use console_initcall() to initialize s390 virtio console 2009-09-11 10:29:52 +02:00
net [S390] s/r: cmm resume fix 2009-10-29 15:05:12 +01:00
scsi [SCSI] zfcp: Flush SCSI registration work when adding unit 2009-10-22 09:38:51 +09:00
Makefile [S390] split/move machine check handler code 2009-03-26 15:24:10 +01:00