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* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h 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 <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* MIPS: Malta: Convert IRQ controller lock to raw spinlock.Ralf Baechle2010-02-27
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Malta, PowerTV: Remove unnecessary "Linux started"Yoichi Yuasa2010-01-12
| | | | | | | Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/813/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZEDmitri Vorobiev2009-12-16
| | | | | | | | | | The MIPS-specific macro CL_SIZE is merely aliasing the macro COMMAND_LINE_SIZE. Other architectures use the latter; also, COMMAND_LINE_SIZE is documented in kernel-parameters.txt, so let's use it, and remove the alias. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Make local arrays with CL_SIZE static __initdataAtsushi Nemoto2009-11-13
| | | | | | | | | | | | | Since commit 22242681cff52bfb7cba5d2a37b91802be7a4e4c ("MIPS: Extend COMMAND_LINE_SIZE"), CL_SIZE is 4096 and local array variables with this size will cause an build failure with default CONFIG_FRAME_WARN settings. Although current users of such array variables are all early bootstrap code and not likely to cause real stack overflow (thread_info corruption), it is preferable to to declare these arrays static with __initdata. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: GCMP: Avoid accessing registers when they are not presentJaidev Patwardhan2009-11-02
| | | | | Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: GIC: Random fixes and enhancements.Chris Dearman2009-11-02
| | | | | Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: CMP: Fix memory barriers for correct operation of amon_cpu_startChris Dearman2009-11-02
| | | | | Signed-off-by: Chris Dearman (chris@mips.com) Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4Ralf Baechle2009-11-02
| | | | | | Based on original patch by Chris Dearman <chris@mips.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: MTI: Fix accesses to device registers on MIPS boardsChris Dearman2009-11-02
| | | | | | | | | This fixes the remaining problems introduced by f197465384bf7ef1af184c2ed1a4e268911a91e3 (incorrect access length & byteswapping in bigendian mode) Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* cpumask: arch_send_call_function_ipi_mask: mipsRusty Russell2009-09-23
| | | | | | | | | | | | | We're weaning the core code off handing cpumask's around on-stack. This introduces arch_send_call_function_ipi_mask(), and by defining it, the old arch_send_call_function_ipi is defined by the core code. We also take the chance to wean the implementations off the obsolescent for_each_cpu_mask(): making send_ipi_mask take the pointer seemed the most natural way to ensure all implementations used for_each_cpu. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* Merge branch 'timers-for-linus' of ↵Linus Torvalds2009-09-18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (34 commits) time: Prevent 32 bit overflow with set_normalized_timespec() clocksource: Delay clocksource down rating to late boot clocksource: clocksource_select must be called with mutex locked clocksource: Resolve cpu hotplug dead lock with TSC unstable, fix crash timers: Drop a function prototype clocksource: Resolve cpu hotplug dead lock with TSC unstable timer.c: Fix S/390 comments timekeeping: Fix invalid getboottime() value timekeeping: Fix up read_persistent_clock() breakage on sh timekeeping: Increase granularity of read_persistent_clock(), build fix time: Introduce CLOCK_REALTIME_COARSE x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown clocksource: Avoid clocksource watchdog circular locking dependency clocksource: Protect the watchdog rating changes with clocksource_mutex clocksource: Call clocksource_change_rating() outside of watchdog_lock timekeeping: Introduce read_boot_clock timekeeping: Increase granularity of read_persistent_clock() timekeeping: Update clocksource with stop_machine timekeeping: Add timekeeper read_clock helper functions timekeeping: Move NTP adjusted clock multiplier to struct timekeeper ... Fix trivial conflict due to MIPS lemote -> loongson renaming.
| * timekeeping: Increase granularity of read_persistent_clock()Martin Schwidefsky2009-08-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The persistent clock of some architectures (e.g. s390) have a better granularity than seconds. To reduce the delta between the host clock and the guest clock in a virtualized system change the read_persistent_clock function to return a struct timespec. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Daniel Walker <dwalker@fifo99.com> LKML-Reference: <20090814134811.013873340@de.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | MIPS: Remove useless zero initializations.Ralf Baechle2009-09-17
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | MIPS: Malta: Convert reset initialization to initcall.Ralf Baechle2009-09-17
|/ | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] MIPS: SMTC: Fix compile errorRaghu Gandham2009-08-03
| | | | | | | | Commit fc03bc1715ca0ad4ccfe97aab16bcc9e7129c1a4 breaks when SMTC support is enabled on Malta. Signed-off-by: Raghu Gandham <raghu@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: CMP: Move gcmp_probe to before the SMP opsTim Anderson2009-07-03
| | | | | | | | This is to move the gcmp_probe call to before the use of and selection of the smp_ops functions. This allows malta with 1004K to work. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: CMP: activate CMP supportTim Anderson2009-07-03
| | | | | | | | | Most of the CMP support was added before, this mostly correct compile problems but adds a platform specific translation for the interrupt number based on cpu number. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: CMP: Extend IPI handling to CPU numberTim Anderson2009-07-03
| | | | | | | | This takes the current IPI interrupt assignment from the fix number of 4 to the number of CPUs defined in the system. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Malta: Remove unnecessary function prototypesDmitri Vorobiev2009-07-03
| | | | | Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.Ralf Baechle2009-06-24
| | | | | | | | | Some of the were relying into smp.h being dragged in by another header which of course is fragile. <asm/cpu-info.h> uses smp_processor_id() only in macros and including smp.h there leads to an include loop, so don't change cpu-info.h. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* irq: change ->set_affinity() to return statusYinghai Lu2009-04-28
| | | | | | | | | | | | | | | | | | | according to Ingo, change set_affinity() in irq_chip should return int, because that way we can handle failure cases in a much cleaner way, in the genirq layer. v2: fix two typos [ Impact: extend API ] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-arch@vger.kernel.org LKML-Reference: <49F654E9.4070809@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* MIPS: Malta: make a needlessly global integer variable staticDmitri Vorobiev2009-03-30
| | | | | | | | | | The variable `mips_revision_corid' is needlessly defined global in arch/mips/mti-malta/malta-init.c, and this patch makes it static. Build-tested with malta_defconfig. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* irq: update all arches for new irq_descMike Travis2009-01-12
| | | | | | | | | Impact: cleanup, update to new cpumask API Irq_desc.affinity and irq_desc.pending_mask are now cpumask_var_t's so access to them should be using the new cpumask API. Signed-off-by: Mike Travis <travis@sgi.com>
* cpumask: make irq_set_affinity() take a const struct cpumaskRusty Russell2008-12-13
| | | | | | | | | | | | | | | | | | | | | | | Impact: change existing irq_chip API Not much point with gentle transition here: the struct irq_chip's setaffinity method signature needs to change. Fortunately, not widely used code, but hits a few architectures. Note: In irq_select_affinity() I save a temporary in by mangling irq_desc[irq].affinity directly. Ingo, does this break anything? (Folded in fix from KOSAKI Motohiro) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Grant Grundler <grundler@parisc-linux.org> Acked-by: Ingo Molnar <mingo@redhat.com> Cc: ralf@linux-mips.org Cc: grundler@parisc-linux.org Cc: jeremy@xensource.com Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
* MIPS: Malta: Consolidate platform device code.Ralf Baechle2008-12-04
| | | | | After adding the RTC platform device to malta-platform.c malta-mtd.c should get unified with the rest of the platform device code.
* MIPS: Malta: Add back RTC supportTiejun Chen2008-12-04
| | | | | | | | | | | With the conversion of MIPS to RTC_LIB the old RTC driver CONFIG_RTC became unselectable. Fix by setting up a platform device. Also enable RTC_CLASS so system time gets set from RTC on kernel initialization. [Ralf: Original patch by Tiejun; polished nice and shiny by me] Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Malta: Fix include paths in malta-amon.cDavid Daney2008-11-20
| | | | | | | | | | | On linux-queue, malta doesn't build after the include file relocation. This should fix it. There some occurrences of 'asm-mips' in the comments of quite a few files, but this is the only place I found it in any code. Signed-off-by: David Daney <ddaney@avtrex.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SMTC: Fix SMTC dyntick support.Kevin D. Kissell2008-10-03
| | | | | | | | | | | Rework of SMTC support to make it work with the new clock event system, allowing "tickless" operation, and to make it compatible with the use of the "wait_irqoff" idle loop. The new clocking scheme means that the previously optional IPI instant replay mechanism is now required, and has been made more robust. Signed-off-by: Kevin D. Kissell <kevink@paralogos.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SMTC: Build fix: Fix filename in MakefileRalf Baechle2008-10-03
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] kgdb: Remove existing implementationJason Wessel2008-07-30
| | | | | | | | | This patch explicitly removes the kgdb implementation, for mips which is intended to be followed by a patch that adds a kgdb implementation for MIPS that makes use of the kgdb core in the kernel. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Malta: Cleanup organization of code into directories.Ralf Baechle2008-07-15
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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