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seqlock: fix raw_read_seqcount_latch()

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lockless_dereference() is supposed to take pointer not integer.

Link: http://lkml.kernel.org/r/20160521201448.GA7429@p183.telecom.by
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan 2016-05-26 15:16:06 -07:00 committed by Linus Torvalds
parent ea8ea737c4
commit 50755bc1c3
1 changed files with 2 additions and 2 deletions
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4
include/linux/seqlock.h
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@ -277,7 +277,7 @@ static inline void raw_write_seqcount_barrier(seqcount_t *s)
static inline int raw_read_seqcount_latch(seqcount_t *s)
{
return lockless_dereference(s->sequence);
return lockless_dereference(s)->sequence;
}
/**
@ -331,7 +331,7 @@ static inline int raw_read_seqcount_latch(seqcount_t *s)
* unsigned seq, idx;
*
* do {
* seq = lockless_dereference(latch->seq);
* seq = lockless_dereference(latch)->seq;
*
* idx = seq & 0x01;
* entry = data_query(latch->data[idx], ...);