Message ID | E1YZahb-0000hI-SD@gondolin.me.apana.org.au |
---|---|
State | Superseded, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/lib/rhashtable.c b/lib/rhashtable.c index 83cfedd..618a3f0 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -477,6 +477,9 @@ next: iter->skip = 0; } + /* Ensure we see any new tables. */ + smp_rmb(); + iter->walker->tbl = rht_dereference_rcu(tbl->future_tbl, ht); if (iter->walker->tbl) { iter->slot = 0;
The walker is a lockless reader so it too needs an smp_rmb before reading the future_tbl field in order to see any new tables that may contain elements that we should have walked over. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> --- lib/rhashtable.c | 3 +++ 1 file changed, 3 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html