Ksoftirqd shouldn't need softirq stack since it's executing in a kernel thread with a callstack that is only beginning at this stage.
Lets comment about that for clarity. Signed-off-by: Frederic Weisbecker <fweis...@gmail.com> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Paul Mackerras <pau...@au1.ibm.com> Cc: Ingo Molnar <mi...@kernel.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Peter Zijlstra <pet...@infradead.org> Cc: H. Peter Anvin <h...@zytor.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Paul Mackerras <pau...@au1.ibm.com> Cc: James Hogan <james.ho...@imgtec.com> Cc: James E.J. Bottomley <j...@parisc-linux.org> Cc: Helge Deller <del...@gmx.de> Cc: Martin Schwidefsky <schwidef...@de.ibm.com> Cc: Heiko Carstens <heiko.carst...@de.ibm.com> Cc: David S. Miller <da...@davemloft.net> Cc: Andrew Morton <a...@linux-foundation.org> --- kernel/softirq.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/softirq.c b/kernel/softirq.c index 657e047..1de0322 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -759,6 +759,7 @@ static void run_ksoftirqd(unsigned int cpu) { local_irq_disable(); if (local_softirq_pending()) { + /* No need to use softirq stack here */ __do_softirq(); rcu_note_context_switch(cpu); local_irq_enable(); -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/