The patch titled
radix-tree: small
has been added to the -mm tree. Its filename is
radix-tree-small.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
From: Nick Piggin <npiggin@xxxxxxx>
Reduce radix tree node memory usage by about a factor of 4 for small files
(< 64K). There are pointer traversal and memory usage costs for large
files with dense pagecache.
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
lib/radix-tree.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN lib/radix-tree.c~radix-tree-small lib/radix-tree.c
--- devel/lib/radix-tree.c~radix-tree-small 2006-04-24 21:59:34.000000000 -0700
+++ devel-akpm/lib/radix-tree.c 2006-04-24 21:59:34.000000000 -0700
@@ -33,7 +33,7 @@
#ifdef __KERNEL__
-#define RADIX_TREE_MAP_SHIFT 6
+#define RADIX_TREE_MAP_SHIFT (CONFIG_BASE_SMALL ? 4 : 6)
#else
#define RADIX_TREE_MAP_SHIFT 3 /* For more stressful testing */
#endif
_
Patches currently in -mm which might be from npiggin@xxxxxxx are
mm-vm_bug_on.patch
mm-introduce-remap_vmalloc_range.patch
mm-introduce-remap_vmalloc_range-tidy.patch
radix-tree-direct-data.patch
radix-tree-small.patch
reiser4-releasepage-fix.patch
-
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