From 02c02bf12c5d838603eed44195d3e91f094e2ab2 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Fri, 3 Nov 2017 23:09:45 -0400 Subject: xarray: Change definition of sibling entries Instead of storing a pointer to the slot containing the canonical entry, store the offset of the slot. Produces slightly more efficient code (~300 bytes) and simplifies the implementation. Signed-off-by: Matthew Wilcox Reviewed-by: Josef Bacik --- include/linux/radix-tree.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux/radix-tree.h') diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index e9e76ab4fbbf..60f3d8eb2cb7 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -59,10 +59,7 @@ static inline bool radix_tree_is_internal_node(void *ptr) #define RADIX_TREE_MAX_TAGS 3 -#ifndef RADIX_TREE_MAP_SHIFT -#define RADIX_TREE_MAP_SHIFT (CONFIG_BASE_SMALL ? 4 : 6) -#endif - +#define RADIX_TREE_MAP_SHIFT XA_CHUNK_SHIFT #define RADIX_TREE_MAP_SIZE (1UL << RADIX_TREE_MAP_SHIFT) #define RADIX_TREE_MAP_MASK (RADIX_TREE_MAP_SIZE-1) -- cgit v1.2.3