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Peter Zijlstra a8b0ca17b8 perf: Remove the nmi parameter from the swevent and overflow interface ... The nmi parameter indicated if we could do wakeups from the current context, if not, we would set some state and self-IPI and let the resulting interrupt do the wakeup. For the various event classes: - hardware: nmi=0; PMI is in fact an NMI or we run irq_work_run from the PMI-tail (ARM etc.) - tracepoint: nmi=0; since tracepoint could be from NMI context. - software: nmi=[0,1]; some, like the schedule thing cannot perform wakeups, and hence need 0. As one can see, there is very little nmi=1 usage, and the down-side of not using it is that on some platforms some software events can have a jiffy delay in wakeup (when arch_irq_work_raise isn't implemented). The up-side however is that we can remove the nmi parameter and save a bunch of conditionals in fast paths. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Michael Cree <mcree@orcon.net.nz> Cc: Will Deacon <will.deacon@arm.com> Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com> Cc: Anton Blanchard <anton@samba.org> Cc: Eric B Munson <emunson@mgebm.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Don Zickus <dzickus@redhat.com> Link: http://lkml.kernel.org/n/tip-agjev8eu666tvknpb3iaj0fg@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>		14 years ago
..
boot	sparc32: added U-Boot build target: uImage	14 years ago
configs	defconfig reduction	15 years ago
include/asm	Fix node_start/end_pfn() definition for mm/page_cgroup.c	14 years ago
kernel	perf: Remove the nmi parameter from the swevent and overflow interface	14 years ago
lib	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6	14 years ago
math-emu	perf: Remove the nmi parameter from the swevent and overflow interface	14 years ago
mm	perf: Remove the nmi parameter from the swevent and overflow interface	14 years ago
oprofile	sparc: using HZ needs an include of linux/param.h	16 years ago
prom	sparc: Remove unnecessary semicolons	14 years ago
Kconfig	sparc: PCIC_PCI needs SPARC32 dependency	14 years ago
Kconfig.debug	lib: consolidate DEBUG_STACK_USAGE option	14 years ago
Makefile	sparc32: added U-Boot build target: uImage	14 years ago