projects
/
firefly-linux-kernel-4.4.55.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
| inline |
side by side
Fix __read_seqcount_begin() to use ACCESS_ONCE for sequence value read
[firefly-linux-kernel-4.4.55.git]
/
include
/
linux
/
seqlock.h
diff --git
a/include/linux/seqlock.h
b/include/linux/seqlock.h
index c6db9fb33c448f28197ffb6d135689daf58625b6..bb1fac5b8ee87f99def8e3565c40ac18f4e930e9 100644
(file)
--- a/
include/linux/seqlock.h
+++ b/
include/linux/seqlock.h
@@
-141,7
+141,7
@@
static inline unsigned __read_seqcount_begin(const seqcount_t *s)
unsigned ret;
repeat:
- ret =
s->sequence
;
+ ret =
ACCESS_ONCE(s->sequence)
;
if (unlikely(ret & 1)) {
cpu_relax();
goto repeat;