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| author | Mark Brown <broonie@kernel.org> | 2016-05-02 12:02:09 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-05-02 12:02:09 +0100 |
| commit | 0ce8428ba9ea13098b828d0881e28368a108709c (patch) | |
| tree | 12cbe5d9c27319b8a18ac9fc9cb44e3c5f35408c /kernel/sched/core.c | |
| parent | fba0d7066524ab7b8ccf60e7e95981d10ed008b0 (diff) | |
| parent | 8c0f55100478649e3c0133684aa4aebab77ce10f (diff) | |
Merge tag 'asoc-fix-v4.6-rc5' into asoc-intel
ASoC: Fixes for v4.6
This is a fairly large collection of fixes but almost all driver
specific ones, especially to the new Intel drivers which have had a lot
of recent development. The one core fix is a change to the debugfs code
to avoid crashes in some relatively unusual configurations.
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index d8465eeab8b3..8b489fcac37b 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -321,6 +321,24 @@ static inline void init_hrtick(void) } #endif /* CONFIG_SCHED_HRTICK */ +/* + * cmpxchg based fetch_or, macro so it works for different integer types + */ +#define fetch_or(ptr, mask) \ + ({ \ + typeof(ptr) _ptr = (ptr); \ + typeof(mask) _mask = (mask); \ + typeof(*_ptr) _old, _val = *_ptr; \ + \ + for (;;) { \ + _old = cmpxchg(_ptr, _val, _val | _mask); \ + if (_old == _val) \ + break; \ + _val = _old; \ + } \ + _old; \ +}) + #if defined(CONFIG_SMP) && defined(TIF_POLLING_NRFLAG) /* * Atomically set TIF_NEED_RESCHED and test for TIF_POLLING_NRFLAG, |