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Will Deacon ddee87f208 ARM: 5959/1: ARM: perf-events: request PMU interrupts with IRQF_NOBALANCING 
If IRQ balancing is used on a multicore ARM system, PMU interrupt
lines may be relocated onto CPUs other than the one causing the
counter overflow. This can result in misattribution of events to
the wrong core and, in the case that the CPU handling the interrupt
has not experience counter overflow, the interrupt can be disabled
because the handler returns IRQ_NONE.

This patch adds the IRQF_NOBALANCING flag to the request_irq call
in perf_events.c.

Acked-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-13 10:50:28 +00:00
..
alpha dma-mapping: alpha: use include/linux/pci-dma-compat.h 2010-03-12 15:52:42 -08:00
arm ARM: 5959/1: ARM: perf-events: request PMU interrupts with IRQF_NOBALANCING 2010-03-13 10:50:28 +00:00
avr32 avr32: use generic ptrace_resume code 2010-03-12 15:52:38 -08:00
blackfin Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
cris Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
frv dma-mapping: frv: remove the obsolete and unnecessary DMA API comments 2010-03-12 15:52:42 -08:00
h8300 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
ia64 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
m32r m32r: use generic ptrace_resume code 2010-03-12 15:52:39 -08:00
m68k Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
m68knommu m68knommu: use generic ptrace_resume code 2010-03-12 15:52:38 -08:00
microblaze microblaze: use generic ptrace_resume code 2010-03-12 15:52:39 -08:00
mips pci-dma: add linux/pci-dma.h to linux/pci.h 2010-03-12 15:52:42 -08:00
mn10300 dma-mapping: mn10300: remove the obsolete and unnecessary DMA API comments 2010-03-12 15:52:42 -08:00
parisc pci-dma: add linux/pci-dma.h to linux/pci.h 2010-03-12 15:52:42 -08:00
powerpc Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-03-12 16:06:51 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
score ptrace: move user_enable_single_step & co prototypes to linux/ptrace.h 2010-03-12 15:52:38 -08:00
sh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
sparc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
um um: remove dma_sync_single_range 2010-03-12 15:52:40 -08:00
x86 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
xtensa Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
.gitignore
Kconfig Merge branch 'perf-probes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-05 10:50:22 -08:00