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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-03-13 12:54:10 +1100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-12 23:02:30 -0400 |
| commit | 393619474ec0ba2a16dee12ec78fd43164f1e9b7 (patch) | |
| tree | 892a4eeba956db8f8abc28420ec29ac4cb0e7e53 /lib | |
| parent | a5b6846f9e1a080493210013385c28faecee36f0 (diff) | |
| download | linux-393619474ec0ba2a16dee12ec78fd43164f1e9b7.tar.gz linux-393619474ec0ba2a16dee12ec78fd43164f1e9b7.tar.bz2 linux-393619474ec0ba2a16dee12ec78fd43164f1e9b7.zip | |
rhashtable: Fix read-side crash during rehash
This patch fixes a typo rhashtable_lookup_compare where we fail
to recompute the hash when looking up the new table. This causes
elements to be missed and potentially a crash during a resize.
Reported-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/rhashtable.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rhashtable.c b/lib/rhashtable.c index adea791ea3ab..fc0d451279f0 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -606,8 +606,8 @@ void *rhashtable_lookup_compare(struct rhashtable *ht, const void *key, rcu_read_lock(); tbl = rht_dereference_rcu(ht->tbl, ht); - hash = key_hashfn(ht, tbl, key); restart: + hash = key_hashfn(ht, tbl, key); rht_for_each_rcu(he, tbl, hash) { if (!compare(rht_obj(ht, he), arg)) continue; |