commit e2e21c1c5808e5dfd88d3606cd6386cf85f6f5b1
author Herbert Xu <herbert@gondor.apana.org.au> Wed Mar 18 20:01:21 2015 +1100
committer David S. Miller <davem@davemloft.net> Wed Mar 18 12:46:41 2015 -0400
tree 9509ed7547a4788e818c3038f7ce38a8856cf1ef
parent 4f509df4f50e72cba65c3b58241a17639b2d9b49

rhashtable: Remove max_shift and min_shift

Now that nobody uses max_shift and min_shift, we can safely remove
them.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

lib/rhashtable.c

diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index c4061bb..5f8fe3e 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -188,7 +188,6 @@
 {
 	/* Expand table when exceeding 75% load */
 	return atomic_read(&ht->nelems) > (tbl->size / 4 * 3) &&
-	       (!ht->p.max_shift || tbl->size < (1 << ht->p.max_shift)) &&
 	       (!ht->p.max_size || tbl->size < ht->p.max_size);
 }
 
@@ -202,7 +201,6 @@
 {
 	/* Shrink table beneath 30% load */
 	return atomic_read(&ht->nelems) < (tbl->size * 3 / 10) &&
-	       tbl->size > (1 << ht->p.min_shift) &&
 	       tbl->size > ht->p.min_size;
 }
 
@@ -875,8 +873,7 @@
 static size_t rounded_hashtable_size(struct rhashtable_params *params)
 {
 	return max(roundup_pow_of_two(params->nelem_hint * 4 / 3),
-		   max(1UL << params->min_shift,
-		       (unsigned long)params->min_size));
+		   (unsigned long)params->min_size);
 }
 
 /**
@@ -936,8 +933,6 @@
 	if (params->nulls_base && params->nulls_base < (1U << RHT_BASE_SHIFT))
 		return -EINVAL;
 
-	params->min_shift = max_t(size_t, params->min_shift,
-				  ilog2(HASH_MIN_SIZE));
 	params->min_size = max(params->min_size, HASH_MIN_SIZE);
 
 	if (params->nelem_hint)