rhashtable: Introduce max_size/min_size

This patch adds the parameters max_size and min_size which are
meant to replace max_shift and min_shift.

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

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index f16e85692959..81267fef85d7 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -85,6 +85,8 @@ struct rhashtable;
  * @head_offset: Offset of rhash_head in struct to be hashed
  * @max_shift: Maximum number of shifts while expanding
  * @min_shift: Minimum number of shifts while shrinking
+ * @max_size: Maximum size while expanding
+ * @min_size: Minimum size while shrinking
  * @nulls_base: Base value to generate nulls marker
  * @locks_mul: Number of bucket locks to allocate per cpu (default: 128)
  * @hashfn: Function to hash key
@@ -97,6 +99,8 @@ struct rhashtable_params {
         size_t                  head_offset;
         size_t                  max_shift;
         size_t                  min_shift;
+        unsigned int            max_size;
+        unsigned int            min_size;
         u32                     nulls_base;
         size_t                  locks_mul;
         rht_hashfn_t            hashfn;