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| author | Peter Zijlstra <peterz@infradead.org> | 2016-04-21 21:35:25 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-05 10:58:52 +0300 |
| commit | a1cc5bcfcfca0b99f009b117785142dbdc3b87a3 (patch) | |
| tree | 78364c2a47da4d2b1433a4e2bd95431403651309 | |
| parent | b96bbdde19cc56f288372d25fd5ea7af04fc1271 (diff) | |
| download | linux-a1cc5bcfcfca0b99f009b117785142dbdc3b87a3.tar.xz | |
locking/atomics: Flip atomic_fetch_or() arguments
All the atomic operations have their arguments the wrong way around;
make atomic_fetch_or() consistent and flip them.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | include/linux/atomic.h | 4 | ||||
| -rw-r--r-- | kernel/time/tick-sched.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/atomic.h b/include/linux/atomic.h index 506c3531832e..e451534fe54d 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -560,11 +560,11 @@ static inline int atomic_dec_if_positive(atomic_t *v) /** * atomic_fetch_or - perform *p |= mask and return old value of *p - * @p: pointer to atomic_t * @mask: mask to OR on the atomic_t + * @p: pointer to atomic_t */ #ifndef atomic_fetch_or -static inline int atomic_fetch_or(atomic_t *p, int mask) +static inline int atomic_fetch_or(int mask, atomic_t *p) { int old, val = atomic_read(p); diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 58e3310c9b21..3daa49ff0719 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -262,7 +262,7 @@ static void tick_nohz_dep_set_all(atomic_t *dep, { int prev; - prev = atomic_fetch_or(dep, BIT(bit)); + prev = atomic_fetch_or(BIT(bit), dep); if (!prev) tick_nohz_full_kick_all(); } @@ -292,7 +292,7 @@ void tick_nohz_dep_set_cpu(int cpu, enum tick_dep_bits bit) ts = per_cpu_ptr(&tick_cpu_sched, cpu); - prev = atomic_fetch_or(&ts->tick_dep_mask, BIT(bit)); + prev = atomic_fetch_or(BIT(bit), &ts->tick_dep_mask); if (!prev) { preempt_disable(); /* Perf needs local kick that is NMI safe */ |