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| author | Felix Fietkau <nbd@openwrt.org> | 2009-04-07 02:51:10 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2009-04-07 02:51:10 +0000 |
| commit | 4b10f6e8c9d7bbb48021dc5253429ad678b0c74b (patch) | |
| tree | 93c44841e86783f22c6967217d8798d79d6f7613 /target/linux/generic-2.6 | |
| parent | e7fbac9d110ec15d66362c6bc18688fff1d010e8 (diff) | |
| download | upstream-4b10f6e8c9d7bbb48021dc5253429ad678b0c74b.tar.gz upstream-4b10f6e8c9d7bbb48021dc5253429ad678b0c74b.tar.bz2 upstream-4b10f6e8c9d7bbb48021dc5253429ad678b0c74b.zip | |
kernel: tweak the maximum allocation size to improve memory allocator performance
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15130 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic-2.6')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.28/203-slab_maxsize.patch | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.28/203-slab_maxsize.patch b/target/linux/generic-2.6/patches-2.6.28/203-slab_maxsize.patch new file mode 100644 index 0000000000..25567f8488 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.28/203-slab_maxsize.patch @@ -0,0 +1,13 @@ +--- a/include/linux/slab.h ++++ b/include/linux/slab.h +@@ -115,8 +115,8 @@ int kmem_ptr_validate(struct kmem_cache + * to do various tricks to work around compiler limitations in order to + * ensure proper constant folding. + */ +-#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \ +- (MAX_ORDER + PAGE_SHIFT - 1) : 25) ++#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 17 ? \ ++ (MAX_ORDER + PAGE_SHIFT - 1) : 17) + + #define KMALLOC_MAX_SIZE (1UL << KMALLOC_SHIFT_HIGH) + #define KMALLOC_MAX_ORDER (KMALLOC_SHIFT_HIGH - PAGE_SHIFT) |