Messages in this thread Patch in this message | | | From | NeilBrown <> | Date | Wed, 18 Apr 2018 16:47:01 +1000 | Subject | [PATCH 3/6] rhashtable: reset iter when rhashtable_walk_start sees new table |
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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> --- lib/rhashtable.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/lib/rhashtable.c b/lib/rhashtable.c index 19db8e563c40..28e1be9f681b 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -733,6 +733,8 @@ 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; }
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