list: Don't use WRITE_ONCE() in hlist_add_behind()
Commit 1c97be677f
("list: Use WRITE_ONCE() when adding to lists and
hlists") introduced the use of WRITE_ONCE() to atomically write the list
head's ->next pointer.
hlist_add_behind() doesn't touch the hlist head's ->first pointer so
there is no reason to use WRITE_ONCE() in this case.
Co-developed-by: Ilias Tsitsimpis <iliastsi@arrikto.com>
Signed-off-by: Nikos Tsironis <ntsironis@arrikto.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Родитель
e28adc3bf3
Коммит
ae325dcd19
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@ -754,7 +754,7 @@ static inline void hlist_add_behind(struct hlist_node *n,
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struct hlist_node *prev)
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{
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n->next = prev->next;
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WRITE_ONCE(prev->next, n);
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prev->next = n;
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n->pprev = &prev->next;
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if (n->next)
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