x86: Add IRQ_TIME_ACCOUNTING
commit06dd801446a3e212dc0a2eb6bb03d9ec7438bca1
authorVenkatesh Pallipadi <venki@google.com>
Thu, 10 Feb 2011 09:23:27 +0000 (10 10:23 +0100)
committerAK <andi@firstfloor.org>
Thu, 31 Mar 2011 18:58:00 +0000 (31 11:58 -0700)
tree2b497abaaf7cefe916ea66af4c825bbe1dd5245a
parent445352de175186a234c6ce1b8e000619ce1d2d1c
x86: Add IRQ_TIME_ACCOUNTING

Commit: e82b8e4ea4f3dffe6e7939f90e78da675fcc450e upstream

This patch adds IRQ_TIME_ACCOUNTING option on x86 and runtime enables it
when TSC is enabled.

This change just enables fine grained irq time accounting, isn't used yet.
Following patches use it for different purposes.

Signed-off-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
LKML-Reference: <1286237003-12406-6-git-send-email-venki@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Documentation/kernel-parameters.txt
arch/x86/Kconfig
arch/x86/kernel/tsc.c