diff options
| author | franciscofranco <franciscofranco.1990@gmail.com> | 2015-12-05 04:01:17 +0000 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-12-25 16:11:14 +0100 |
| commit | 2d6a958ab8f0aaa9c20738a0ac22ba94ae000362 (patch) | |
| tree | 1c2fafd423477f54ef91480567b8937d9a5215dc /include/linux/seqlock.h | |
| parent | e5a41b03c4e0a299623929f41a3a1e17fa82076a (diff) | |
arm64: use the new *_relaxed macros for lower power usage
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: Joe Maples <joe@frap129.org>
Signed-off-by: Mister Oyster <oysterized@gmail.com>
Diffstat (limited to 'include/linux/seqlock.h')
| -rw-r--r-- | include/linux/seqlock.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h index 182990574..d4cf5229c 100644 --- a/include/linux/seqlock.h +++ b/include/linux/seqlock.h @@ -29,6 +29,7 @@ #include <linux/spinlock.h> #include <linux/preempt.h> #include <asm/processor.h> +#include <asm/relaxed.h> /* * Version using sequence counter only. @@ -61,9 +62,9 @@ static inline unsigned __read_seqcount_begin(const seqcount_t *s) unsigned ret; repeat: - ret = ACCESS_ONCE(s->sequence); + ret = cpu_relaxed_read((volatile u32 *)&s->sequence); if (unlikely(ret & 1)) { - cpu_relax(); + cpu_read_relax(); goto repeat; } return ret; |