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| author | Ingo Molnar <mingo@kernel.org> | 2018-01-03 14:14:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-01-03 14:14:18 +0100 |
| commit | 475c5ee193fd682c6383b5e418e65e46a477d176 (patch) | |
| tree | 43f70a77d919e10237edbbbc3ca7ac8076d27410 /include/linux/seqlock.h | |
| parent | 30a7acd573899fd8b8ac39236eff6468b195ac7d (diff) | |
| parent | 1dfa55e01987288d847220b8c027204871440ed1 (diff) | |
| download | linux-475c5ee193fd682c6383b5e418e65e46a477d176.tar.gz linux-475c5ee193fd682c6383b5e418e65e46a477d176.tar.bz2 linux-475c5ee193fd682c6383b5e418e65e46a477d176.zip | |
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:
- Updates to use cond_resched() instead of cond_resched_rcu_qs()
where feasible (currently everywhere except in kernel/rcu and
in kernel/torture.c). Also a couple of fixes to avoid sending
IPIs to offline CPUs.
- Updates to simplify RCU's dyntick-idle handling.
- Updates to remove almost all uses of smp_read_barrier_depends()
and read_barrier_depends().
- Miscellaneous fixes.
- Torture-test updates.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/seqlock.h')
| -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; } |