Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [PATCH 0/4] irq_work: Fix ordering issue | Date | Fri, 8 Nov 2019 17:08:54 +0100 |
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Patches 1 and 2 are the fix part, 3 is a cleanup, 4 is extra-optimization (rfc).
Thanks to Paul that confirmed my doubts about ordering on cmpxchg() failure.
Frederic Weisbecker (4): irq_work: Convert flags to atomic_t irq_work: Fix irq_work_claim() ordering irq_work: Slightly simplify IRQ_WORK_PENDING clearing irq_work: Weaken ordering in irq_work_run_list()
include/linux/irq_work.h | 10 +++++++--- kernel/irq_work.c | 35 ++++++++++++++--------------------- kernel/printk/printk.c | 2 +- 3 files changed, 22 insertions(+), 25 deletions(-)
-- 2.23.0
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