diff options
| author | Paul E. McKenney <[email protected]> | 2017-10-09 11:00:32 -0700 |
|---|---|---|
| committer | Paul E. McKenney <[email protected]> | 2017-12-04 10:52:54 -0800 |
| commit | 98b22737847cc015a797567e32d0a4826003afbf (patch) | |
| tree | 58fe9bab30c6d8885d631365570227066d29e69a /include/linux | |
| parent | 1ba9c5e6c615e8aca9041e27c40f25569704ae72 (diff) | |
seqlock: Remove now-redundant smp_read_barrier_depends()
READ_ONCE() now implies smp_read_barrier_depends(), so this patch
removes the now-redundant smp_read_barrier_depends() from
raw_read_seqcount_latch().
Signed-off-by: Paul E. McKenney <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/seqlock.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h index f189a8a3bbb8..bcf4cf26b8c8 100644 --- a/include/linux/seqlock.h +++ b/include/linux/seqlock.h @@ -278,9 +278,8 @@ static inline void raw_write_seqcount_barrier(seqcount_t *s) static inline int raw_read_seqcount_latch(seqcount_t *s) { - int seq = READ_ONCE(s->sequence); /* Pairs with the first smp_wmb() in raw_write_seqcount_latch() */ - smp_read_barrier_depends(); + int seq = READ_ONCE(s->sequence); /* ^^^ */ return seq; } |