x86/smp: Remove pointless duplicated interrupt code

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Two NOP5s are really a good tradeoff vs. the unholy IDT switching mess,
which duplicates code all over the place. The rescheduling interrupt gets
optimized in a later step.

Make the ordering of function call and statistics increment the same as in
other places. Calculate stats first, then do the function call.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064957.222101344@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

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Thomas Gleixner 2017-08-28 08:47:29 +02:00 • committed by Ingo Molnar

parent 0f42ae283c

commit 85b77cdd8f

2 changed files with 9 additions and 38 deletions

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4

arch/x86/include/asm/hw_irq.h

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43

arch/x86/kernel/smp.c

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