Hi all, This is version two of the patches I originally posted here:
http://lkml.kernel.org/r/1543347902-21170-1-git-send-email-will.dea...@arm.com The only change since v1 is that __preempt_count_dec_and_test() now reloads the need_resched flag if it initially saw that it was set. This resolves the issue spotted by Peter, where an IRQ coming in during the decrement can cause a reschedule to be missed. Feedback welcome. Will --->8 Will Deacon (2): preempt: Move PREEMPT_NEED_RESCHED definition into arch code arm64: preempt: Provide our own implementation of asm/preempt.h arch/arm64/include/asm/Kbuild | 1 - arch/arm64/include/asm/preempt.h | 88 ++++++++++++++++++++++++++++++++++++ arch/arm64/include/asm/thread_info.h | 13 +++++- arch/s390/include/asm/preempt.h | 2 + arch/x86/include/asm/preempt.h | 3 ++ include/linux/preempt.h | 3 -- 6 files changed, 105 insertions(+), 5 deletions(-) create mode 100644 arch/arm64/include/asm/preempt.h -- 2.1.4
