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2011-04-08signal.c: fix erroneous syscall kernel-docRandy Dunlap1-2/+2
Fix erroneous syscall kernel-doc comments in kernel/signal.c. Reported-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-07Merge branches 'x86-fixes-for-linus', 'sched-fixes-for-linus', ↵Linus Torvalds3-4/+16
'timers-fixes-for-linus', 'irq-fixes-for-linus' and 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86-32, fpu: Fix FPU exception handling on non-SSE systems x86, hibernate: Initialize mmu_cr4_features during boot x86-32, NUMA: Fix ACPI NUMA init broken by recent x86-64 change x86: visws: Fixup irq overhaul fallout * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Clean up rebalance_domains() load-balance interval calculation * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/mrst/vrtc: Fix boot crash in mrst_rtc_init() rtc, x86/mrst/vrtc: Fix boot crash in rtc_read_alarm() * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq: Fix cpumask leak in __setup_irq() * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf probe: Fix listing incorrect line number with inline function perf probe: Fix to find recursively inlined function perf probe: Fix multiple --vars options behavior perf probe: Fix to remove redundant close perf probe: Fix to ensure function declared file
2011-04-07Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds40-55/+55
* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
2011-04-05sched: Clean up rebalance_domains() load-balance interval calculationPeter Zijlstra2-4/+15
Instead of the possible multiple-evaluation of num_online_cpus() in rebalance_domains() that Linus reported, avoid it altogether in the normal case since it's implemented with a Hamming weight function over a cpu bitmask which can be darn expensive for those with big iron. This also makes it cleaner, smaller and documents the code. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1301991265.2225.12.camel@twins> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-04-05kernel/signal.c: add kernel-doc notation to syscallsRandy Dunlap1-2/+63
Add kernel-doc to syscalls in signal.c. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-05kernel/signal.c: fix typos and coding styleRandy Dunlap1-42/+48
General coding style and comment fixes; no code changes: - Use multi-line-comment coding style. - Put some function signatures completely on one line. - Hyphenate some words. - Spell Posix as POSIX. - Correct typos & spellos in some comments. - Drop trailing whitespace. - End sentences with periods. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-04jump label: Introduce static_branch() interfaceJason Baron3-337/+229
Introduce: static __always_inline bool static_branch(struct jump_label_key *key); instead of the old JUMP_LABEL(key, label) macro. In this way, jump labels become really easy to use: Define: struct jump_label_key jump_key; Can be used as: if (static_branch(&jump_key)) do unlikely code enable/disale via: jump_label_inc(&jump_key); jump_label_dec(&jump_key); that's it! For the jump labels disabled case, the static_branch() becomes an atomic_read(), and jump_label_inc()/dec() are simply atomic_inc(), atomic_dec() operations. We show testing results for this change below. Thanks to H. Peter Anvin for suggesting the 'static_branch()' construct. Since we now require a 'struct jump_label_key *key', we can store a pointer into the jump table addresses. In this way, we can enable/disable jump labels, in basically constant time. This change allows us to completely remove the previous hashtable scheme. Thanks to Peter Zijlstra for this re-write. Testing: I ran a series of 'tbench 20' runs 5 times (with reboots) for 3 configurations, where tracepoints were disabled. jump label configured in avg: 815.6 jump label *not* configured in (using atomic reads) avg: 800.1 jump label *not* configured in (regular reads) avg: 803.4 Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20110316212947.GA8792@redhat.com> Signed-off-by: Jason Baron <jbaron@redhat.com> Suggested-by: H. Peter Anvin <hpa@linux.intel.com> Tested-by: David Daney <ddaney@caviumnetworks.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-04-04tracing: Avoid soft lockup in trace_pipeJiri Olsa2-3/+15
running following commands: # enable the binary option echo 1 > ./options/bin # disable context info option echo 0 > ./options/context-info # tracing only events echo 1 > ./events/enable cat trace_pipe plus forcing system to generate many tracing events, is causing lockup (in NON preemptive kernels) inside tracing_read_pipe function. The issue is also easily reproduced by running ltp stress test. (ftrace_stress_test.sh) The reasons are: - bin/hex/raw output functions for events are set to trace_nop_print function, which prints nothing and returns TRACE_TYPE_HANDLED value - LOST EVENT trace do not handle trace_seq overflow These reasons force the while loop in tracing_read_pipe function never to break. The attached patch fixies handling of lost event trace, and changes trace_nop_print to print minimal info, which is needed for the correct tracing_read_pipe processing. v2 changes: - omit the cond_resched changes by trace_nop_print changes - WARN changed to WARN_ONCE and added info to be able to find out the culprit v3 changes: - make more accurate patch comment Signed-off-by: Jiri Olsa <jolsa@redhat.com> LKML-Reference: <20110325110518.GC1922@jolsa.brq.redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-04-04tracing: Print trace_bprintk() formats for modules tooSteven Rostedt1-6/+97
The file debugfs/tracing/printk_formats maps the addresses to the formats that are used by trace_bprintk() so that userspace tools can read the buffer and be able to decode trace_bprintk events to get the format saved when reading the ring buffer directly. This is because trace_bprintk() does not store the format into the buffer, but just the address of the format, which is hidden in the kernel memory. But currently it only exports trace_bprintk()s from the kernel core and not for modules. The modules need their formats exported as well. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-04-04tracing: Convert trace_printk() formats for module to const char *Steven Rostedt1-6/+11
The trace_printk() formats for modules do not show up in the debugfs/tracing/printk_formats file. Only the formats that are for trace_printk()s that are in the kernel core. To facilitate the change to add trace_printk() formats from modules into that file as well, we need to convert the structure that holds the formats from char fmt[], into const char *fmt, and allocate them separately. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-04-04Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2-2/+14
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix rebalance interval calculation sched, doc: Beef up load balancing description sched: Leave sched_setscheduler() earlier if possible, do not disturb SCHED_FIFO tasks
2011-04-04Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds1-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: Fix task_struct reference leak perf: Fix task context scheduling perf: mmap 512 kiB by default perf: Rebase max unprivileged mlock threshold on top of page size perf tools: Fix NO_NEWT=1 python build error perf symbols: Properly align symbol_conf.priv_size perf tools: Emit clearer message for sys_perf_event_open ENOENT return perf tools: Fixup exit path when not able to open events perf symbols: Fix vsyscall symbol lookup oprofile, x86: Allow setting EDGE/INV/CMASK for counter events
2011-04-04ntp: fix non privileged system time shiftingRichard Cochran1-0/+2
The ADJ_SETOFFSET bit added in commit 094aa188 ("ntp: Add ADJ_SETOFFSET mode bit") also introduced a way for any user to change the system time. Sneaky or buggy calls to adjtimex() could set ADJ_OFFSET_SS_READ | ADJ_SETOFFSET which would result in a successful call to timekeeping_inject_offset(). This patch fixes the issue by adding the capability check. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-02genirq: Fix cpumask leak in __setup_irq()Xiaotian Feng1-0/+1
The allocated cpumask should be freed in __setup_irq(). Signed-off-by: Xiaotian Feng <dfeng@redhat.com> LKML-Reference: <1301744375-6812-1-git-send-email-dfeng@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-04-01kdump: Allow shrinking of kdump region to be overriddenAnton Blanchard1-2/+3
On ppc64 the crashkernel region almost always overlaps an area of firmware. This works fine except when using the sysfs interface to reduce the kdump region. If we free the firmware area we are guaranteed to crash. Rename free_reserved_phys_range to crash_free_reserved_phys_range and make it a weak function so we can override it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-31Fix common misspellingsLucas De Marchi40-55/+55
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31perf: Fix task_struct reference leakPeter Zijlstra1-0/+5
sys_perf_event_open() had an imbalance in the number of task refs it took causing memory leakage Cc: Jiri Olsa <jolsa@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: stable@kernel.org # .37+ Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-03-31perf: Rebase max unprivileged mlock threshold on top of page sizeFrederic Weisbecker1-2/+2
Ensure we allow 512 kiB + 1 page for user control without assuming a 4096 bytes page size. Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@kernel.org> LKML-Reference: <1301535209-9679-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-03-31sched: Fix rebalance interval calculationSisir Koppaka1-2/+3
The interval for checking scheduling domains if they are due to be balanced currently depends on boot state NR_CPUS, which may not accurately reflect the number of online CPUs at the time of check. Thus replace NR_CPUS with num_online_cpus(). (ed: Should only affect those who set NR_CPUS really high, such as 4096 or so :-) Signed-off-by: Sisir Koppaka <sisir.koppaka@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <AANLkTikqHWid2Q93F5U5Qw5snJH8C5PXoa7J6=6hYO94@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-03-31sched: Leave sched_setscheduler() earlier if possible, do not disturb ↵Dario Faggioli1-0/+11
SCHED_FIFO tasks sched_setscheduler() (in sched.c) is called in order of changing the scheduling policy and/or the real-time priority of a task. Thus, if we find out that neither of those are actually being modified, it is possible to return earlier and save the overhead of a full deactivate+activate cycle of the task in question. Beside that, if we have more than one SCHED_FIFO task with the same priority on the same rq (which means they share the same priority queue) having one of them changing its position in the priority queue because of a sched_setscheduler (as it happens by means of the deactivate+activate) that does not actually change the priority violates POSIX which states, for SCHED_FIFO: "If a thread whose policy or priority has been modified by pthread_setschedprio() is a running thread or is runnable, the effect on its position in the thread list depends on the direction of the modification, as follows: a. <...> b. If the priority is unchanged, the thread does not change position in the thread list. c. <...>" http://pubs.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_08.html (ed: And the POSIX specification here does, briefly and somewhat unexpectedly, match what common sense tells us as well. ) Signed-off-by: Dario Faggioli <raistlin@linux.it> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1300971618.3960.82.camel@Palantir> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-03-30genirq: Remove the now obsolete config options and select statementsThomas Gleixner1-3/+0
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-30genirq: Fix misnamed label in handle_edge_eoi_irqThomas Gleixner1-1/+1
Reported-by: michael@ellerman.id.au Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linuxppc-dev@lists.ozlabs.org
2011-03-29genirq: Remove move_*irq leftoversThomas Gleixner1-10/+0
All users converted to new interface. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29genirq: Remove compat codeThomas Gleixner12-276/+24
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29alpha: Use generic show_interrupts()Thomas Gleixner1-2/+6
The only subtle difference is that alpha uses ACTUAL_NR_IRQS and prints the IRQF_DISABLED flag. Change the generic implementation to deal with ACTUAL_NR_IRQS if defined. The IRQF_DISABLED printing is pointless, as we nowadays run all interrupts with irqs disabled. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29genirq: Fix harmless typoThomas Gleixner1-1/+1
The late night fixup missed to convert the data type from irq_desc to irq_data, which results in a harmless but annoying warning. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29Merge branches 'irq-cleanup-for-linus' and 'irq-fixes-for-linus' of ↵Linus Torvalds9-95/+205
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: vlynq: Convert irq functions * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq; Fix cleanup fallout genirq: Fix typo and remove unused variable genirq: Fix new kernel-doc warnings genirq: Add setter for AFFINITY_SET in irq_data state genirq: Provide setter inline for IRQD_IRQ_INPROGRESS genirq: Remove handle_IRQ_event arm: Ns9xxx: Remove private irq flow handler powerpc: cell: Use the core flow handler genirq: Provide edge_eoi flow handler genirq: Move INPROGRESS, MASKED and DISABLED state flags to irq_data genirq: Split irq_set_affinity() so it can be called with lock held. genirq: Add chip flag for restricting cpu_on/offline calls genirq: Add chip hooks for taking CPUs on/off line. genirq: Add irq disabled flag to irq_data state genirq: Reserve the irq when calling irq_set_chip()
2011-03-29genirq; Fix cleanup falloutThomas Gleixner2-8/+10
I missed the CONFIG_GENERIC_PENDING_IRQ dependency in the affinity related functions and the IRQ_LEVEL propagation into irq_data state. Did not pop up on my main test platforms. :( Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: David Daney <ddaney@caviumnetworks.com>
2011-03-29Relax si_code check in rt_sigqueueinfo and rt_tgsigqueueinfoRoland Dreier1-2/+2
Commit da48524eb206 ("Prevent rt_sigqueueinfo and rt_tgsigqueueinfo from spoofing the signal code") made the check on si_code too strict. There are several legitimate places where glibc wants to queue a negative si_code different from SI_QUEUE: - This was first noticed with glibc's aio implementation, which wants to queue a signal with si_code SI_ASYNCIO; the current kernel causes glibc's tst-aio4 test to fail because rt_sigqueueinfo() fails with EPERM. - Further examination of the glibc source shows that getaddrinfo_a() wants to use SI_ASYNCNL (which the kernel does not even define). The timer_create() fallback code wants to queue signals with SI_TIMER. As suggested by Oleg Nesterov <oleg@redhat.com>, loosen the check to forbid only the problematic SI_TKILL case. Reported-by: Klaus Dittrich <kladit@arcor.de> Acked-by: Julien Tinnes <jln@google.com> Cc: <stable@kernel.org> Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-28genirq: Fix typo and remove unused variableThomas Gleixner2-2/+1
Sigh, I'm overworked. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-28genirq: Fix new kernel-doc warningsRandy Dunlap1-1/+1
Fix new irq-related kernel-doc warnings in 2.6.38: Warning(kernel/irq/manage.c:149): No description found for parameter 'mask' Warning(kernel/irq/manage.c:149): Excess function parameter 'cpumask' description in 'irq_set_affinity' Warning(include/linux/irq.h:161): No description found for parameter 'state_use_accessors' Warning(include/linux/irq.h:161): Excess struct/union/enum/typedef member 'state_use_accessor' description in 'irq_data' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> LKML-Reference: <20110318093356.b939558d.randy.dunlap@oracle.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-28genirq: Remove handle_IRQ_eventThomas Gleixner1-12/+0
Last user gone. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-28genirq: Provide edge_eoi flow handlerThomas Gleixner2-0/+49
This is a replacment for the cell flow handler which is in the way of cleanups. Must be selected to avoid general bloat. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-28genirq: Move INPROGRESS, MASKED and DISABLED state flags to irq_dataThomas Gleixner8-57/+49
We really need these flags for some of the interrupt chips. Move it from internal state to irq_data and provide proper accessors. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: David Daney <ddaney@caviumnetworks.com>
2011-03-27genirq: Split irq_set_affinity() so it can be called with lock held.David Daney1-18/+30
The .irq_cpu_online() and .irq_cpu_offline() functions may need to adjust affinity, but they are called with the descriptor lock held. Create __irq_set_affinity_locked() which is called with the lock held. Make irq_set_affinity() just a wrapper that acquires the lock. [ tglx: Changed the argument to irq_data, added a !desc check and moved the !irq_set_affinity check where it belongs ] Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Cc: ralf@linux-mips.org LKML-Reference: <1301081931-11240-4-git-send-email-ddaney@caviumnetworks.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-27genirq: Add chip flag for restricting cpu_on/offline callsThomas Gleixner1-4/+6
Add a flag which indicates that the on/offline callback should only be called on enabled interrupts. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-27genirq: Add chip hooks for taking CPUs on/off line.David Daney1-0/+58
[ tglx: Removed the enabled argument as this is now available in irq_data ] Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Cc: ralf@linux-mips.org LKML-Reference: <1301081931-11240-3-git-send-email-ddaney@caviumnetworks.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-27genirq: Add irq disabled flag to irq_data stateThomas Gleixner2-2/+4
Some irq_chip implementation require to know the disabled state of the interrupt in certain callbacks. Add a state flag and accessor to irq_data. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-27genirq: Reserve the irq when calling irq_set_chip()David Daney1-0/+6
The helper macros and functions like for_each_active_irq() don't work unless the irq is in the allocated_irqs set. In the case of !CONFIG_SPARSE_IRQ, instead of forcing all users of the irq infrastructure to explicitly call irq_reserve_irq(), do it for them. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Cc: ralf@linux-mips.org LKML-Reference: <1301081931-11240-2-git-send-email-ddaney@caviumnetworks.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-26Merge branch 'syscore' of ↵Linus Torvalds1-19/+8
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'syscore' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: Introduce ARCH_NO_SYSDEV_OPS config option (v2) cpufreq: Use syscore_ops for boot CPU suspend/resume (v2) KVM: Use syscore_ops instead of sysdev class and sysdev PCI / Intel IOMMU: Use syscore_ops instead of sysdev class and sysdev timekeeping: Use syscore_ops instead of sysdev class and sysdev x86: Use syscore_ops instead of sysdev classes and sysdevs
2011-03-26Merge branch 'for_linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kdb: add usage string of 'per_cpu' command kgdb,x86_64: fix compile warning found with sparse kdb: code cleanup to use macro instead of value kgdboc,kgdbts: strlen() doesn't count the terminator
2011-03-26Merge branch 'irq-cleanup-for-linus' of ↵Linus Torvalds2-1/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (23 commits) genirq: Expand generic show_interrupts() gpio: Fold irq_set_chip/irq_set_handler to irq_set_chip_and_handler gpio: Cleanup genirq namespace arm: ep93xx: Add basic interrupt info arm/gpio: Remove three copies of broken and racy debug code xtensa: Use generic show_interrupts() xtensa: Convert genirq namespace xtensa: Use generic IRQ Kconfig and set GENERIC_HARDIRQS_NO_DEPRECATED xtensa: Convert s6000 gpio irq_chip to new functions xtensa: Convert main irq_chip to new functions um: Use generic show_interrupts() um: Convert genirq namespace m32r: Use generic show_interrupts() m32r: Convert genirq namespace h8300: Use generic show_interrupts() h8300: Convert genirq namespace avr32: Cleanup eic_set_irq_type() avr32: Use generic show_interrupts() avr: Cleanup genirq namespace avr32: Use generic IRQ config, enable GENERIC_HARDIRQS_NO_DEPRECATED ... Fix up trivial conflict in drivers/gpio/timbgpio.c
2011-03-26Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds3-7/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched, doc: Update sched-design-CFS.txt sched: Remove unused 'rq' variable and cpu_rq() call from alloc_fair_sched_group() sched.h: Fix a typo ("its") sched: Fix yield_to kernel-doc
2011-03-26Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2-4/+14
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf, x86: Complain louder about BIOSen corrupting CPU/PMU state and continue perf, x86: P4 PMU - Read proper MSR register to catch unflagged overflows perf symbols: Look at .dynsym again if .symtab not found perf build-id: Add quirk to deal with perf.data file format breakage perf session: Pass evsel in event_ops->sample() perf: Better fit max unprivileged mlock pages for tools needs perf_events: Fix stale ->cgrp pointer in update_cgrp_time_from_cpuctx() perf top: Fix uninitialized 'counter' variable tracing: Fix set_ftrace_filter probe function display perf, x86: Fix Intel fixed counters base initialization
2011-03-26Merge branch 'irq-fixes-for-linus' of ↵Linus Torvalds1-14/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq: Provide locked setter for chip, handler, name genirq: Provide a lockdep helper genirq; Remove the last leftovers of the old sparse irq code
2011-03-26Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds3-13/+44
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Fix WARN_ON() test for UP WARN_ON_SMP(): Allow use in if() statements on UP x86, dumpstack: Use %pB format specifier for stack trace vsprintf: Introduce %pB format specifier lockdep: Remove unused 'factor' variable from lockdep_stats_show()
2011-03-26kdb: add usage string of 'per_cpu' commandNamhyung Kim1-1/+1
Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2011-03-26kdb: code cleanup to use macro instead of valueJovi Zhang1-1/+1
It's better to use macro KDB_BASE_CMD_MAX instead of 50 Signed-off-by: Jovi Zhang <bookjovi@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2011-03-25genirq: Expand generic show_interrupts()Thomas Gleixner2-1/+18
Some archs want to print extra information for certain irq_chips which is per irq and not per chip. Allow them to provide a chip callback to print the chip name and the extra information. PowerPC wants to print the LEVEL/EDGE type information. Make it configurable. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-25futex: Fix WARN_ON() test for UPSteven Rostedt1-2/+2
An update of the futex code had a WARN_ON(!spin_is_locked(q->lock_ptr)) But on UP, spin_is_locked() is always false, and will trigger this warning, and even worse, it will exit the function without doing the necessary work. Converting this to a WARN_ON_SMP() fixes the problem. Reported-by: Richard Weinberger <richard@nod.at> Tested-by: Richard Weinberger <richard@nod.at> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Darren Hart <dvhart@linux.intel.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> LKML-Reference: <20110317192208.682654502@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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