X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=rculfhash.c;h=ca63457b7237288a8b7816efef9bed1aa9c2c3a3;hb=eb631bf261cb0dad1db55ecb8fdda0fe761cf0c9;hp=675ef382311beafcbb8d62ad284b2032d6db79aa;hpb=5488222bbdb95680d942c3fb645095b48e96620f;p=urcu.git diff --git a/rculfhash.c b/rculfhash.c index 675ef38..ca63457 100644 --- a/rculfhash.c +++ b/rculfhash.c @@ -738,17 +738,21 @@ struct _cds_lfht_node *lookup_bucket(struct cds_lfht *ht, unsigned long size, assert(size > 0); index = hash & (size - 1); + + if (index < ht->min_alloc_size) { + dbg_printf("lookup hash %lu index %lu order 0 aridx 0\n", + hash, index); + return &ht->t.tbl[0]->nodes[index]; + } /* * equivalent to get_count_order_ulong(index + 1), but optimizes * away the non-existing 0 special-case for * get_count_order_ulong. */ order = fls_ulong(index); - dbg_printf("lookup hash %lu index %lu order %lu aridx %lu\n", - hash, index, order, index & (!order ? 0 : ((1UL << (order - 1)) - 1))); - - return &ht->t.tbl[order]->nodes[index & (!order ? 0 : ((1UL << (order - 1)) - 1))]; + hash, index, order, index & ((1UL << (order - 1)) - 1)); + return &ht->t.tbl[order]->nodes[index & ((1UL << (order - 1)) - 1)]; } /* @@ -1280,7 +1284,7 @@ void cds_lfht_create_dummy(struct cds_lfht *ht, unsigned long size) for (order = 1; order < get_count_order_ulong(size) + 1; order++) { len = 1UL << (order - 1); if (order <= ht->min_alloc_order) { - ht->t.tbl[order] = (void *)(ht->t.tbl[0]->nodes + len); + ht->t.tbl[order] = (struct rcu_level *) (ht->t.tbl[0]->nodes + len); } else { ht->t.tbl[order] = calloc(1, len * sizeof(struct _cds_lfht_node)); assert(ht->t.tbl[order]);