Sebastian Ott d53c51f261 s390/cio: fix accidental interrupt enabling during resume ...

Since commit 9f3d6d7 chsc_get_channel_measurement_chars is called with
interrupts disabled during resume from hibernate. Since this function
used spin_unlock_irq, interrupts have been enabled accidentally. Fix
this by using the irqsave variant.

Since we can't guarantee the IRQ-enablement state for all (future/
external) callers, change the locking in related functions to prevent
similar bugs in the future.

Fixes: 9f3d6d7 ("s390/cio: update measurement characteristics")
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2016-09-30 09:13:11 +02:00

..

airq.c

s390/cio: Introduce common I/O layer tracepoints

2015-12-18 14:59:36 +01:00

blacklist.c

s390: Use pr_warn instead of pr_warning

2016-03-07 13:12:04 +01:00

blacklist.h

…

ccwgroup.c

s390/ccwgroup: use ccwgroup_ungroup wrapper

2014-06-16 10:32:52 +02:00

ccwreq.c

s390: Use pr_warn instead of pr_warning

2016-03-07 13:12:04 +01:00

chp.c

s390/cio: fix premature wakeup during chp configure

2016-07-31 05:27:57 -04:00

chp.h

s390: use canonical include guard style

2016-06-13 15:58:17 +02:00

chsc_sch.c

s390/chsc: fix ioctl CHSC_INFO_CU command

2016-07-15 14:31:58 +02:00

chsc_sch.h

[S390] cio: Add chsc subchannel driver.

2008-07-14 10:02:12 +02:00

chsc.c

s390/cio: fix accidental interrupt enabling during resume

2016-09-30 09:13:11 +02:00

chsc.h

s390/chsc: improve channel path descriptor determination

2016-07-15 14:32:01 +02:00

cio_debug.h

[S390] cio: Remove cio_msg kernel parameter.

2008-05-07 09:23:01 +02:00

cio.c

s390: Use pr_warn instead of pr_warning

2016-03-07 13:12:04 +01:00

cio.h

s390: cio: remove redundant cio_cancel declaration

2016-08-24 09:23:56 +02:00

cmf.c

s390/cio: allow to reset channel measurement block

2016-07-14 13:01:49 +02:00

crw.c

s390/cio: Consolidate inline assemblies and related data definitions

2015-12-18 14:59:34 +01:00

css.c

s390/cio: Remove unused inline assemblies

2015-12-18 14:59:33 +01:00

css.h

s390/cio: Delay scan for newly available I/O devices

2013-12-16 14:37:41 +01:00

device_fsm.c

s390/cio: Remove unused inline assemblies

2015-12-18 14:59:33 +01:00

device_id.c

s390/comments: unify copyright messages and remove file names

2012-07-20 11:15:04 +02:00

device_ops.c

s390/cio/device_ops: fix kernel doc

2016-07-15 14:31:57 +02:00

device_pgid.c

s390/cio: move ccw_device_stlck functions

2015-10-27 09:34:44 +01:00

device_status.c

s390/cio: stop using subchannel_id from ccw_device_private

2016-08-08 15:41:32 +02:00

device.c

s390/cio: remove subchannel_id from ccw_device_private

2016-08-08 15:41:33 +02:00

device.h

s390/cio: move ccw_device_stlck functions

2015-10-27 09:34:44 +01:00

eadm_sch.c

s390: remove unneeded variables

2015-08-07 09:57:01 +02:00

eadm_sch.h

s390/eadm_sch: improve quiesce handling

2013-10-24 17:16:58 +02:00

fcx.c

[S390] drivers: Correct size given to memset

2009-12-18 17:43:32 +01:00

idset.c

s390/cio: idset.c: remove some unused functions

2015-01-08 10:02:50 +01:00

idset.h

s390: use canonical include guard style

2016-06-13 15:58:17 +02:00

io_sch.h

s390/cio: remove subchannel_id from ccw_device_private

2016-08-08 15:41:33 +02:00

ioasm.c

s390/cio: use basic blocks for i/o inline assemblies

2016-06-28 09:32:34 +02:00

ioasm.h

s390/cio: Change I/O instructions from inline to normal functions

2015-12-18 14:59:37 +01:00

isc.c

[S390] cio: introduce isc_(un)register functions.

2008-07-14 10:02:11 +02:00

itcw.c

[S390] cio: reduce memory consumption of itcw structures

2011-01-05 12:47:29 +01:00

Makefile

s390/cio: Change I/O instructions from inline to normal functions

2015-12-18 14:59:37 +01:00

orb.h

s390: add eadm related structures

2012-09-26 15:44:57 +02:00

qdio_debug.c

s390: Delete unnecessary checks before the function call "debug_unregister"

2015-11-27 09:24:16 +01:00

qdio_debug.h

qdio: Keep device-specific dbf entries

2014-06-16 10:31:58 +02:00

qdio_main.c

s390/qdio: avoid reschedule of outbound tasklet once killed

2016-08-08 16:01:28 +02:00

qdio_setup.c

s390: remove 31 bit support

2015-03-25 11:49:33 +01:00

qdio_thinint.c

s390/airq: simplify adapter interrupt code

2013-06-26 21:10:28 +02:00

qdio.h

s390: remove 31 bit support

2015-03-25 11:49:33 +01:00

scm.c

s390/scm_block: do not hide eadm subchannel dependency

2013-11-15 14:08:42 +01:00

trace.c

s390/cio: Introduce common I/O layer tracepoints

2015-12-18 14:59:36 +01:00

trace.h

s390/cio: Introduce common I/O layer tracepoints

2015-12-18 14:59:36 +01:00