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d302e1a5db
kernel-ark/drivers/s390/cio
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Peter Oberparleiter d302e1a5db [S390] cio: fix channel path vary 
Channel path vary is currently broken: channel paths which are varied
offline are still used by Linux. The reason for this is that:

 * the path mask indicating which paths of an I/O device can be used
   is reset by each internal I/O request
 * the logic that checks if a path group is already in its designated
   target state incorrectly interprets the result "is correctly set"
   as "is correctly set and available"

Fix this by resetting the path mask only for internal I/O requests
which affect the path mask and by correcting the pgid check logic.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-18 17:43:32 +01:00
..
airq.c [S390] cio: airq - fix array boundary 2009-03-26 15:24:14 +01:00
blacklist.c [S390] Fix memory leak in /proc/cio_ignore 2009-10-06 10:35:07 +02:00
blacklist.h [PATCH] s390: multiple subchannel sets support 2006-01-06 08:33:52 -08:00
ccwgroup.c const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
ccwreq.c [S390] cio: fix channel path vary 2009-12-18 17:43:32 +01:00
chp.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
chp.h [S390] cio: Repair chpid event handling. 2008-07-14 10:02:11 +02:00
chsc_sch.c [S390] pm: chsc subchannel driver power management callbacks 2009-06-16 10:31:10 +02:00
chsc_sch.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
chsc.c [S390] pm: css bus power management callbacks 2009-06-16 10:31:09 +02:00
chsc.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
cio_debug.h [S390] cio: Remove cio_msg kernel parameter. 2008-05-07 09:23:01 +02:00
cio.c nohz: Introduce arch_needs_cpu 2009-11-05 07:53:53 +01:00
cio.h [S390] cio: introduce subchannel todos 2009-12-07 12:51:30 +01:00
cmf.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
crw.c [S390] cio/crw: add/fix locking 2009-03-26 15:24:13 +01:00
css.c const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
css.h [S390] cio: introduce subchannel todos 2009-12-07 12:51:30 +01:00
device_fsm.c [S390] cio: handle failed disable_subchannel after device recognition 2009-12-07 12:51:32 +01:00
device_id.c [S390] cio: improve error recovery for internal I/Os 2009-12-07 12:51:33 +01:00
device_ops.c [S390] cio: make steal lock procedure more robust 2009-12-07 12:51:32 +01:00
device_pgid.c [S390] cio: fix channel path vary 2009-12-18 17:43:32 +01:00
device_status.c [S390] cio: remove intretry flag 2009-12-07 12:51:31 +01:00
device.c [S390] cio: fix drvdata usage for the console subchannel 2009-12-18 17:43:31 +01:00
device.h [S390] cio: make steal lock procedure more robust 2009-12-07 12:51:32 +01:00
fcx.c [S390] drivers: Correct size given to memset 2009-12-18 17:43:32 +01:00
idset.c [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
idset.h [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
io_sch.h [S390] cio: fix channel path vary 2009-12-18 17:43:32 +01:00
ioasm.h [S390] cio: inline assembly cleanup 2008-10-10 21:33:53 +02:00
isc.c [S390] cio: introduce isc_(un)register functions. 2008-07-14 10:02:11 +02:00
itcw.c [S390] cio: provide helper functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
Makefile [S390] cio: consistent infrastructure for internal I/O requests 2009-12-07 12:51:31 +01:00
qdio_debug.c const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
qdio_debug.h [S390] qdio: rework debug feature logging 2008-12-25 13:38:59 +01:00
qdio_main.c [S390] qdio: change state of all primed input buffers 2009-09-22 22:58:43 +02:00
qdio_perf.c const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
qdio_perf.h [S390] qdio: inline qdio_perf_stat_inc 2009-06-12 10:27:32 +02:00
qdio_setup.c [S390] qdio: report SIGA errors directly 2009-03-26 15:24:22 +01:00
qdio_thinint.c [S390] qdio: merge AI tasklet into interrupt handler 2009-06-22 12:08:20 +02:00
qdio.h [S390] qdio: remove limited number of debugfs entries 2009-09-11 10:29:39 +02:00