kernel.git/drivers/s390/cio, branch linux-2.6.34.y

[S390] ccwgroup: move attributes to attribute group

2012-08-17T19:35:36Z

commit dbdf1afcaaabe83dea15a3cb9b9013e73ae3b1ad upstream. Put sysfs attributes of ccwgroup devices in an attribute group to ensure that these attributes are actually present when userspace is notified via uevents. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky Signed-off-by: Paul Gortmaker

[S390] cio: use exception-save stsch

2010-04-22T15:17:19Z

Using stsch on schids with ssid != 0 can lead to an operand exception. Use stsch_err to handle potential exceptions if we fail to reenable mss after hibernation. Cc: Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] add hook to reenable mss after hibernation

2010-04-22T15:17:19Z

Reenable multiple subchannel sets after hibernation, prior to the device callbacks. Cc: Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] cio: allow enable_facility from outside init functions

2010-04-22T15:17:19Z

Prepare chsc_enable_facility to be used from outside init functions. Use static memory for the chsc call and protect its access by a spinlock (although there is no concurrent usage). Cc: Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

[S390] remove unused qdio flags in zfcp and qeth

2010-03-08T11:25:30Z

zfcp and qeth are setting flags for the qdio-layer, but these flags are not used in qdio. Patch removes the flag definitions from qdio and their settings in zfcp and qeth. Cc: Jan Glauber Cc: Christof Schmitt Signed-off-by: Ursula Braun Signed-off-by: Martin Schwidefsky

[S390] qdio: add missing bracket

2010-03-08T11:25:30Z

Add a missing bracket to only log the outbound handler event in the appropriate case. Signed-off-by: Ursula Braun Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky

[S390] cio: fix init_count in case of recognition after steal lock

2010-03-08T11:25:30Z

After we try to steal a lock on a ccw device in boxed state, we have to restart device recognition and potentially reprobing. In this case ccw_device_init_count was erroneously decreased twice. This patch fixes the issue. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky

[S390] Cleanup struct _lowcore usage and defines.

2010-02-26T21:37:31Z

Use asm offsets to make sure the offset defines to struct _lowcore and its layout don't get out of sync. Also add a BUILD_BUG_ON() which checks that the size of the structure is sane. And while being at it change those sites which use odd casts to access the current lowcore. These should use S390_lowcore instead. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] add MACHINE_IS_LPAR flag

2010-02-26T21:37:31Z

Introduce the MACHINE_IS_LPAR flag for code that should only be executed if Linux is running in an LPAR. Signed-off-by: Martin Schwidefsky