Commit b41cc04b authored Apr 24, 2018 by NeilBrown Committed by David S. Miller Apr 24, 2018

rhashtable: reset iter when rhashtable_walk_start sees new table



The documentation claims that when rhashtable_walk_start_check()
detects a resize event, it will rewind back to the beginning
of the table.  This is not true.  We need to set ->slot and
->skip to be zero for it to be true.

Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 82266e98

lib/rhashtable.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -737,6 +737,8 @@ int rhashtable_walk_start_check(struct rhashtable_iter *iter)

		if (!iter->walker.tbl && !iter->end_of_table) {
		iter->walker.tbl = rht_dereference_rcu(ht->tbl, ht);
		iter->slot = 0;
		iter->skip = 0;
		return -EAGAIN;
		}