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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-02-10 12:34:49 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-02-17 07:40:46 +0100 |
| commit | 187b5f41b4f15feae8b59e3a9ccaa7df85518bbb (patch) | |
| tree | 5e6d5d07573c6478ae205b171e8ab010847b0e98 /arch/s390 | |
| parent | d321796753f5305a00a5f4996dbbb996994df45c (diff) | |
| download | linux-187b5f41b4f15feae8b59e3a9ccaa7df85518bbb.tar.gz linux-187b5f41b4f15feae8b59e3a9ccaa7df85518bbb.tar.xz | |
s390: replace ACCESS_ONCE with READ_ONCE
Remove the last places of ACCESS_ONCE in s390 code.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/spinlock.h | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/idle.c | 14 | ||||
| -rw-r--r-- | arch/s390/lib/spinlock.c | 2 |
3 files changed, 9 insertions, 9 deletions
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h index 7ecd8902a5c3..ffc45048ea7d 100644 --- a/arch/s390/include/asm/spinlock.h +++ b/arch/s390/include/asm/spinlock.h @@ -63,7 +63,7 @@ static inline int arch_spin_value_unlocked(arch_spinlock_t lock) static inline int arch_spin_is_locked(arch_spinlock_t *lp) { - return ACCESS_ONCE(lp->lock) != 0; + return READ_ONCE(lp->lock) != 0; } static inline int arch_spin_trylock_once(arch_spinlock_t *lp) diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c index 7a55c29b0b33..8e5ef334bee5 100644 --- a/arch/s390/kernel/idle.c +++ b/arch/s390/kernel/idle.c @@ -57,8 +57,8 @@ static ssize_t show_idle_count(struct device *dev, do { seq = read_seqcount_begin(&idle->seqcount); - idle_count = ACCESS_ONCE(idle->idle_count); - if (ACCESS_ONCE(idle->clock_idle_enter)) + idle_count = READ_ONCE(idle->idle_count); + if (READ_ONCE(idle->clock_idle_enter)) idle_count++; } while (read_seqcount_retry(&idle->seqcount, seq)); return sprintf(buf, "%llu\n", idle_count); @@ -75,9 +75,9 @@ static ssize_t show_idle_time(struct device *dev, do { now = get_tod_clock(); seq = read_seqcount_begin(&idle->seqcount); - idle_time = ACCESS_ONCE(idle->idle_time); - idle_enter = ACCESS_ONCE(idle->clock_idle_enter); - idle_exit = ACCESS_ONCE(idle->clock_idle_exit); + idle_time = READ_ONCE(idle->idle_time); + idle_enter = READ_ONCE(idle->clock_idle_enter); + idle_exit = READ_ONCE(idle->clock_idle_exit); } while (read_seqcount_retry(&idle->seqcount, seq)); idle_time += idle_enter ? ((idle_exit ? : now) - idle_enter) : 0; return sprintf(buf, "%llu\n", idle_time >> 12); @@ -93,8 +93,8 @@ cputime64_t arch_cpu_idle_time(int cpu) do { now = get_tod_clock(); seq = read_seqcount_begin(&idle->seqcount); - idle_enter = ACCESS_ONCE(idle->clock_idle_enter); - idle_exit = ACCESS_ONCE(idle->clock_idle_exit); + idle_enter = READ_ONCE(idle->clock_idle_enter); + idle_exit = READ_ONCE(idle->clock_idle_exit); } while (read_seqcount_retry(&idle->seqcount, seq)); return idle_enter ? ((idle_exit ?: now) - idle_enter) : 0; } diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c index 03462326ca3e..ba427eb6f14c 100644 --- a/arch/s390/lib/spinlock.c +++ b/arch/s390/lib/spinlock.c @@ -133,7 +133,7 @@ int arch_spin_trylock_retry(arch_spinlock_t *lp) int count; for (count = spin_retry; count > 0; count--) { - owner = ACCESS_ONCE(lp->lock); + owner = READ_ONCE(lp->lock); /* Try to get the lock if it is free. */ if (!owner) { if (_raw_compare_and_swap(&lp->lock, 0, cpu)) |