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* [S390] cio: fix memleak in resume pathSebastian Ott2010-10-25
| | | | | | | | | | | | | | | | | If a ccwdevice is lost during hibernation and a different ccwdevice is attached to the same subchannel, we will deregister the old ccw device and register the new one. Since deregistration is not allowed in this context, we handle this action later. However, some parts of the registration process for the new device were started anyway, so that the old device structure is no longer accessible. Fix this by deferring both actions to the afterwards scheduled subchannel event. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cio: remove custom implementation of hex_to_bin()Andy Shevchenko2010-10-25
| | | | | Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] dasd fix dump_sense_dbfStefan Haberland2010-10-25
| | | | | | | | | | The dasd_eckd_dump_sense_dbf function uses a macro for s390 debug feature that can handle up to 8 parameters (for the DASD device driver). Fix the function to use only the maximum number of parameters. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] css: fix sparse warningSebastian Ott2010-10-25
| | | | | | | | | | fix this sparse warning: drivers/s390/cio/css.c:580:6: warning: symbol 'css_schedule_eval_all_unreg' was not declared. Should it be static? Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] hvc_iucv: do not call iucv_unregister if iucv_register failedHendrik Brueckner2010-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | If the iucv_register() functions fails, the error recovery calls iucv_unregister() which might cause the following stack backtrace: (<0000000000100ab2> show_trace+0xee/0x144) <00000000004f1842> panic+0xb6/0x248 <00000000001010a6> die+0x15a/0x16c <000000000011d936> do_no_context+0xa6/0xe4 <00000000004f84dc> do_protection_exception+0x2e8/0x3a4 <0000000000113afc> pgm_exit+0x0/0x14 <00000000004e786e> iucv_unregister+0x5a/0x17c (<00000000004e785e> iucv_unregister+0x4a/0x17c) <000000000076de74> hvc_iucv_init+0x228/0x5dc <00000000001000c2> do_one_initcall+0x3e/0x19c <00000000007524a2> kernel_init+0x28e/0x404 <0000000000105dd6> kernel_thread_starter+0x6/0xc <0000000000105dd0> kernel_thread_starter+0x0/0xc Remove the call to iucv_unregister() and remove the goto label as unregistering is the last step in the hvc_iucv initialization. If iucv_register() fails, simply clean up hvc terminals and free resources. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cmm: fix crash on case conversionHeiko Carstens2010-10-25
| | | | | | | | | | | | | When the cmm module is compiled into the kernel it will crash when writing to the R/O data section. Reason is the lower to upper case conversion of the "sender" module parameter which ignored the fact that the pointer is preinitialized. Introduced with 41b42876 "cmm, smsgiucv_app: convert sender to uppercase" Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] drivers/s390/char: Use static const char arraysJoe Perches2010-10-25
| | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] switch_to: get rid of prev == next checkHeiko Carstens2010-10-25
| | | | | | | | schedule() makes sure that prev != next before calling switch_to(). Therefore remove the redundant check. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] switch_to: dont restore/save access & fpu regs for kernel threadsHeiko Carstens2010-10-25
| | | | | | | | | | | If the previous task was a kernel thread there is no need to save the contents of the fpu and access registers since they aren't used in kernel mode. For the same reason it is not necessary to restore these registers if the next task is a kernel thread. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] Add config option for z196 code generation.Heiko Carstens2010-10-25
| | | | | | | | Add a kernel config option for the IBM zEnterprise 196. This will produce faster code on newer compilers using the -march=z196 option. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] sysinfo: display capacity adjustment indicatorHeiko Carstens2010-10-25
| | | | | | | | Display machine capacity adjustment indicator and capacity change reason if available in /proc/sysinfo. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] add z196 instructions to kernel disassemblerMartin Schwidefsky2010-10-25
| | | | | | Add the new instructions introduced with z196 to the kernel disassembler. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] add support for nonquiescing sskeMartin Schwidefsky2010-10-25
| | | | | | | | Improve performance of the sske operation by using the nonquiescing variant if the affected page has no mappings established. On machines with no support for the new sske variant the mask bit will be ignored. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] store indication fault optimizationMartin Schwidefsky2010-10-25
| | | | | | | | Use the store indication bit in the translation exception code on page faults to avoid the protection faults that immediatly follow the page fault if the access has been a write. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] cpu hotplug/idle: move cpu_die call to enabled contextHeiko Carstens2010-10-25
| | | | | | | | | | | | | | | | There is no difference if cpu_die is called from enabled or disabled context. Except that the fast_gup code might be called via cpu_die -> idle_task_exit -> __mm_drop -> crst_table_free. Which in turn grabs and releases a spinlock using the _bh ops, which is not allowed in irq disabled context, since spin_unlock_bh will unconditionally enable interrupts again. To get rid of the warning emitted by the softirq code just move the code to enabled context. In this case this doesn't fix a bug, we just get rid of a warning. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] lockless get_user_pages_fast()Martin Schwidefsky2010-10-25
| | | | | | Implement get_user_pages_fast without locking in the fastpath on s390. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] set ARCH_HAS_SG_CHAIN for s390Christof Schmitt2010-10-25
| | | | | | | | | Set ARCH_HAS_SG_CHAIN for scatter lists on s390. Without this flag the SCSI code limits the maximum number of segments, so set it to make proper use of the FCP channel hardware. Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] standardize Kbuild rulesHeiko Carstens2010-10-25
| | | | | | | | | | | | Introducing this Kbuild file allow us to: make arch/s390/ And thus building all the core part of s390. Same as on other architectures. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] dasd: let recovery cqr inherit flags from failed cqrStefan Weinhuber2010-10-25
| | | | | | | | | | | | The usual way to recover a failed DASD ECKD request (cqr) is to create a new request with an appropriate recovery CCW program. Certain features, e.g. failfast, can be enabled per request and are stored in the requests flags. These flags have to be copied from the failed to the recovery request, to let the recovery request use the same features as the original one. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* [S390] zero page cache synonymsMartin Schwidefsky2010-10-25
| | | | | | | | | If the zero page is mapped to virtual user space addresses that differ only in bit 2^12 or 2^13 we get L1 cache synonyms which can affect performance. Follow the mips model and use multiple zero pages to avoid the synonyms. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* Merge branch 'for-next' of ↵Linus Torvalds2010-10-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) Update broken web addresses in arch directory. Update broken web addresses in the kernel. Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget Revert "Fix typo: configuation => configuration" partially ida: document IDA_BITMAP_LONGS calculation ext2: fix a typo on comment in ext2/inode.c drivers/scsi: Remove unnecessary casts of private_data drivers/s390: Remove unnecessary casts of private_data net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data drivers/infiniband: Remove unnecessary casts of private_data drivers/gpu/drm: Remove unnecessary casts of private_data kernel/pm_qos_params.c: Remove unnecessary casts of private_data fs/ecryptfs: Remove unnecessary casts of private_data fs/seq_file.c: Remove unnecessary casts of private_data arm: uengine.c: remove C99 comments arm: scoop.c: remove C99 comments Fix typo configue => configure in comments Fix typo: configuation => configuration Fix typo interrest[ing|ed] => interest[ing|ed] Fix various typos of valid in comments ... Fix up trivial conflicts in: drivers/char/ipmi/ipmi_si_intf.c drivers/usb/gadget/rndis.c net/irda/irnet/irnet_ppp.c
| * Update broken web addresses in arch directory.Justin P. Mattock2010-10-18
| | | | | | | | | | | | | | | | | | | | | | The patch below updates broken web addresses in the arch directory. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Update broken web addresses in the kernel.Justin P. Mattock2010-10-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch below updates broken web addresses in the kernel Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Matt Turner <mattst88@gmail.com> Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Acked-by: Ben Pfaff <blp@cs.stanford.edu> Acked-by: Hans J. Koch <hjk@linutronix.de> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Revert "drivers/usb: Remove unnecessary return's from void functions" for ↵Jiri Kosina2010-10-06
| | | | | | | | | | | | | | | | | | | | musb gadget This is a partial revert of 7f26b3a7533b ("drivers/usb: Remove unnecessary return's from void functions") as this hunk will vanish in USB tree completely. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Revert "Fix typo: configuation => configuration" partiallyJiri Kosina2010-09-24
| | | | | | | | | | | | | | | | This is a partial revert of 0b1974de66f ("Fix typo: configuation => configuration") as this hunk is removed in net-next. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * ida: document IDA_BITMAP_LONGS calculationNamhyung Kim2010-09-23
| | | | | | | | | | | | | | | | | | | | IDA_BITMAP_LONGS value is calculated take into account struct ida_bitmap not to waste memory space. Comment it. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * ext2: fix a typo on comment in ext2/inode.cNamhyung Kim2010-09-23
| | | | | | | | | | | | | | | | 'excpet' should be 'except'. 'ext3_get_branch' should be 'ext2_get_branch'. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * drivers/scsi: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * drivers/s390: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * drivers/infiniband: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * drivers/gpu/drm: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * kernel/pm_qos_params.c: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * fs/ecryptfs: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * fs/seq_file.c: Remove unnecessary casts of private_dataJoe Perches2010-09-23
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * arm: uengine.c: remove C99 commentsH Hartley Sweeten2010-09-23
| | | | | | | | | | | | | | | | Comments should be /* */ not //. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Jiri Kosina <trivial@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * arm: scoop.c: remove C99 commentsH Hartley Sweeten2010-09-23
| | | | | | | | | | | | | | | | Comments should be /* */ not //. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Jiri Kosina <trivial@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Fix typo configue => configure in commentsThomas Weber2010-09-23
| | | | | | | | | | | | Signed-off-by: Thomas Weber <weber@corscience.de> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Fix typo: configuation => configurationThomas Weber2010-09-23
| | | | | | | | | | | | Signed-off-by: Thomas Weber <weber@corscience.de> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Fix typo interrest[ing|ed] => interest[ing|ed]Thomas Weber2010-09-21
| | | | | | | | | | | | | | Fix typos with interrest*. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Fix various typos of valid in commentsNikanth Karthikesan2010-09-21
| | | | | | | | | | | | | | Fix various typos of valid. Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Doc: Fix typo s/packages/packagedNikanth Karthikesan2010-09-21
| | | | | | | | | | | | | | Fix typo s/packages/packaged in Documentation/vm/numa_memory_policy.txt. Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Revert "drivers/usb: Remove unnecessary return's from void functions" partiallyJiri Kosina2010-09-02
| | | | | | | | | | | | | | | | | | This is a partial revert of 7f26b3a7533b ("drivers/usb: Remove unnecessary return's from void functions") as this hunk will go through USB tree due to conflict. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * idr: describe how nextidp works in idr_get_next().Naohiro Aota2010-08-31
| | | | | | | | | | | | | | | | | | It was unclear in original kernel-doc how nextidp worked in idr_get_next(). Let's describe it. Signed-off-by: Naohiro Aota <naota@elisp.net> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * idr: fix kernel-doc warnings.Naohiro Aota2010-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following kernel-doc warnings. % perl scripts/kernel-doc lib/idr.c > /dev/null Warning(lib/idr.c:300): No description found for parameter 'starting_id' Warning(lib/idr.c:300): Excess function parameter 'start_id' description in 'idr_get_new_above' Warning(lib/idr.c:485): No description found for parameter 'idp' Warning(lib/idr.c:596): No description found for parameter 'nextidp' Warning(lib/idr.c:596): Excess function parameter 'id' description in 'idr_get_next' Warning(lib/idr.c:774): No description found for parameter 'starting_id' Warning(lib/idr.c:774): Excess function parameter 'staring_id' description in 'ida_get_new_above' Warning(lib/idr.c:918): No description found for parameter 'ida' Signed-off-by: Naohiro Aota <naota@elisp.net> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * MAINTAINERS: update broken web addressJustin P. Mattock2010-08-30
| | | | | | | | | | | | | | | | The patch below updates a broken web address in the MAINTAINERS file. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * parport_pc: show the detection of a 2 serial port ITE8874 chipNiels de Vos2010-08-24
| | | | | | | | | | | | | | | | | | | | | | | | The printk message for the 2 serial port version is obscured with a debug macro, unlike all other versions of the card. It should be changed to make the output equal for all detected models. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=578616#c1 CC: Joe Krahn <krahn@niehs.nih.gov> Signed-off-by: Niels de Vos <ndevos@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Kconfig: delete duplicate wordStephan Sperber2010-08-23
| | | | | | | | | | | | | | Deleted a word which apeared twice. Signed-off-by: Stephan Sperber <sperberstephan@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Fix typo in Kconfig help textThomas Weber2010-08-23
| | | | | | | | | | | | | | Fix the name of the sensor: BMP086 => BMP085 Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Use kzalloc in idedisk_prep_fn.Tao Ma2010-08-19
| | | | | | | | | | | | Signed-off-by: Tao Ma <tao.ma@oracle.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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