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rhashtable: Extend RCU read lock into rhashtable_insert_rehash()

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rhashtable_insert_rehash() requires RCU locks to be held in order
to access ht->tbl and traverse to the last table.

Fixes: ccd57b1bd3 ("rhashtable: Add immediate rehash during insertion")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2015-03-24 14:18:16 +01:00 • committed by David S. Miller
commit 58be8a583d
1 changed files with 1 additions and 1 deletions
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2
include/linux/rhashtable.h
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@ -585,8 +585,8 @@ restart:
if (unlikely(rht_grow_above_100(ht, tbl))) { if (unlikely(rht_grow_above_100(ht, tbl))) {
slow_path: slow_path:
spin_unlock_bh(lock); spin_unlock_bh(lock);
rcu_read_unlock();
err = rhashtable_insert_rehash(ht); err = rhashtable_insert_rehash(ht);
rcu_read_unlock();
if (err) if (err)
return err; return err;