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net/netlabel: Add list_next_rcu() in rcu_dereference().

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Add list_next_rcu() for fetching next list in rcu_deference safely.

Found with sparse in linux-next tree on tag next-20171116.

Signed-off-by: Tim Hansen <devtimhansen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tim Hansen 2017-11-16 12:03:34 -05:00 committed by David S. Miller
parent 58fedcade1
commit 17e4857775
1 changed files with 2 additions and 2 deletions
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4
net/netlabel/netlabel_addrlist.h
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@ -87,7 +87,7 @@ static inline struct netlbl_af4list *__af4list_valid_rcu(struct list_head *s,
struct list_head *i = s;
struct netlbl_af4list *n = __af4list_entry(s);
while (i != h && !n->valid) {
i = rcu_dereference(i->next);
i = rcu_dereference(list_next_rcu(i));
n = __af4list_entry(i);
}
return n;
@ -154,7 +154,7 @@ static inline struct netlbl_af6list *__af6list_valid_rcu(struct list_head *s,
struct list_head *i = s;
struct netlbl_af6list *n = __af6list_entry(s);
while (i != h && !n->valid) {
i = rcu_dereference(i->next);
i = rcu_dereference(list_next_rcu(i));
n = __af6list_entry(i);
}
return n;