x86: Distinguish TLB shootdown interrupts from other functions call interrupts

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As TLB shootdown requests to other CPU cores are now using function call
interrupts, TLB shootdowns entry in /proc/interrupts is always shown as 0.

This behavior change was introduced by commit 52aec3308d ("x86/tlb:
replace INVALIDATE_TLB_VECTOR by CALL_FUNCTION_VECTOR").

This patch reverts TLB shootdowns entry in /proc/interrupts to count TLB
shootdowns separately from the other function call interrupts.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama.qu@hitachi.com>
Link: http://lkml.kernel.org/r/20120926021128.22212.20440.stgit@hpxw
Acked-by: Alex Shi <alex.shi@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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This commit is contained in:

Tomoki Sekiyama 2012-09-26 11:11:28 +09:00 • committed by H. Peter Anvin

parent d4c9dbc61f

commit fd0f586972

3 changed files with 8 additions and 2 deletions

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4

arch/x86/include/asm/hardirq.h

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4

arch/x86/kernel/irq.c

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2

arch/x86/mm/tlb.c

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