kernel/smp.c: use '|=' for csd_lock
csd_lock() uses assignment to data->flags rather than |=. That is not buggy at present because only one bit (CSD_FLAG_LOCK) is defined in call_single_data.flags. But it will become buggy if we later add another flag, so fix it now. Signed-off-by:liguang <lig.fnst@cn.fujitsu.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
parent
ef3b1019
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