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| author | Paul E. McKenney <[email protected]> | 2017-10-05 22:03:10 +0000 |
|---|---|---|
| committer | Paul E. McKenney <[email protected]> | 2017-11-28 23:51:20 +0000 |
| commit | 2342172fd6c148506456862d795c7f155baf6797 (patch) | |
| tree | cd9d468341bd806b71b7d4c7c80ceab84e87ed56 /tools/perf/scripts/python/syscall-counts.py | |
| parent | rcu: Stop duplicating lockdep checks in RCU's idle-entry code (diff) | |
| download | kernel-2342172fd6c148506456862d795c7f155baf6797.tar.gz kernel-2342172fd6c148506456862d795c7f155baf6797.zip | |
rcu: Avoid ->dynticks_nesting store tearing
Although ->dynticks_nesting is updated only by process level, it is
accessed from hardirq to check for interrupt-from-idle quiescent states.
Store tearing is thus possible, so this commit applies WRITE_ONCE()
to ->dynticks_nesting stores.
Signed-off-by: Paul E. McKenney <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions