redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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>
hifive-unleashed-5.1
Herbert Xu 2015-03-13 12:54:10 +11:00 committed by David S. Miller
parent a5b6846f9e
commit 393619474e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/rhashtable.c
View File

@ -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;