From 50755bc1c305340660bbfa65fdae3ed113d8fe0e Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Thu, 26 May 2016 15:16:06 -0700
Subject: [PATCH] seqlock: fix raw_read_seqcount_latch()
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>
---
include/linux/seqlock.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index e0582106ef4fa..7973a821ac588 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -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], ...);
--
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