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-rw-r--r--lib/rhashtable.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 3d2b4733f6cb..081be3ba9ea8 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -297,7 +297,7 @@ int rhashtable_shrink(struct rhashtable *ht, gfp_t flags)
ASSERT_RHT_MUTEX(ht);
- if (tbl->size <= HASH_MIN_SIZE)
+ if (ht->shift <= ht->p.min_shift)
return 0;
ntbl = bucket_table_alloc(tbl->size / 2, flags);
@@ -505,9 +505,10 @@ void *rhashtable_lookup_compare(const struct rhashtable *ht, u32 hash,
}
EXPORT_SYMBOL_GPL(rhashtable_lookup_compare);
-static size_t rounded_hashtable_size(unsigned int nelem)
+static size_t rounded_hashtable_size(struct rhashtable_params *params)
{
- return max(roundup_pow_of_two(nelem * 4 / 3), HASH_MIN_SIZE);
+ return max(roundup_pow_of_two(params->nelem_hint * 4 / 3),
+ 1UL << params->min_shift);
}
/**
@@ -565,8 +566,11 @@ int rhashtable_init(struct rhashtable *ht, struct rhashtable_params *params)
(!params->key_len && !params->obj_hashfn))
return -EINVAL;
+ params->min_shift = max_t(size_t, params->min_shift,
+ ilog2(HASH_MIN_SIZE));
+
if (params->nelem_hint)
- size = rounded_hashtable_size(params->nelem_hint);
+ size = rounded_hashtable_size(params);
tbl = bucket_table_alloc(size, GFP_KERNEL);
if (tbl == NULL)