Messages in this thread | | | Subject | Re: [PATCH 8/8] powerpc: Tell about irq stack coverage | From | Benjamin Herrenschmidt <> | Date | Fri, 27 Sep 2013 08:20:46 +1000 |
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On Thu, 2013-09-26 at 18:24 +0200, Frederic Weisbecker wrote: > Now that powerpc runs irq_exit() under the irq stack, > let the softirq core know about that so that we spare > the needless stack switch on irq exit's softirq processing. > > Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> > Cc:
> Paul Mackerras <paulus@au1.ibm.com> > Cc: Ingo Molnar <mingo@kernel.org> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: H. Peter Anvin <hpa@zytor.com> > Cc: Linus Torvalds <torvalds@linux-foundation.org> > Cc: Paul Mackerras <paulus@au1.ibm.com> > Cc: James Hogan <james.hogan@imgtec.com> > Cc: James E.J. Bottomley <jejb@parisc-linux.org> > Cc: Helge Deller <deller@gmx.de> > Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> > Cc: Heiko Carstens <heiko.carstens@de.ibm.com> > Cc: David S. Miller <davem@davemloft.net> > Cc: Andrew Morton <akpm@linux-foundation.org> > --- > arch/powerpc/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > index 38f3b7e..b365d5c 100644 > --- a/arch/powerpc/Kconfig > +++ b/arch/powerpc/Kconfig > @@ -138,6 +138,7 @@ config PPC > select OLD_SIGSUSPEND > select OLD_SIGACTION if PPC32 > select HAVE_DEBUG_STACKOVERFLOW > + select HAVE_IRQ_EXIT_ON_IRQ_STACK > > config EARLY_PRINTK > bool
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