softirq: Avoid stack switch from ksoftirqd
ksoftirqd() calls do_softirq() which switches stacks on several architectures. That makes no sense at all. ksoftirqd's stack is sufficient. Call __do_softirq() directly. Signed-off-by:Thomas Gleixner <tglx@linutronix.de> Acked-by:
Peter Zijlstra <peterz@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by:
David Miller <davem@davemloft.net> Cc: Paul Mundt <lethal@linux-sh.org> Reviewed-by:
Frank Rowand <frank.rowand@am.sony.com> LKML-Reference: <alpine.LFD.2.00.1102021704530.31804@localhost6.localdomain6>
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