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authorDavid Woodhouse <dwmw2@infradead.org>2010-05-19 07:01:42 -0400
committerPekka Enberg <penberg@cs.helsinki.fi>2010-05-19 15:03:13 -0400
commit1f0ce8b3dd667dca720a47869f8110c298f0e5b8 (patch)
treec0e260b5d8e6d3fe55be2bf6772265ad48878efd /mm/slab.c
parente40152ee1e1c7a63f4777791863215e3faa37a86 (diff)
mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slab_def.h>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'mm/slab.c')
-rw-r--r--mm/slab.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/mm/slab.c b/mm/slab.c
index bac0f4fcc216..7401ddc24306 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -144,30 +144,6 @@
144#define BYTES_PER_WORD sizeof(void *) 144#define BYTES_PER_WORD sizeof(void *)
145#define REDZONE_ALIGN max(BYTES_PER_WORD, __alignof__(unsigned long long)) 145#define REDZONE_ALIGN max(BYTES_PER_WORD, __alignof__(unsigned long long))
146 146
147#ifndef ARCH_KMALLOC_MINALIGN
148/*
149 * Enforce a minimum alignment for the kmalloc caches.
150 * Usually, the kmalloc caches are cache_line_size() aligned, except when
151 * DEBUG and FORCED_DEBUG are enabled, then they are BYTES_PER_WORD aligned.
152 * Some archs want to perform DMA into kmalloc caches and need a guaranteed
153 * alignment larger than the alignment of a 64-bit integer.
154 * ARCH_KMALLOC_MINALIGN allows that.
155 * Note that increasing this value may disable some debug features.
156 */
157#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long)
158#endif
159
160#ifndef ARCH_SLAB_MINALIGN
161/*
162 * Enforce a minimum alignment for all caches.
163 * Intended for archs that get misalignment faults even for BYTES_PER_WORD
164 * aligned buffers. Includes ARCH_KMALLOC_MINALIGN.
165 * If possible: Do not enable this flag for CONFIG_DEBUG_SLAB, it disables
166 * some debug features.
167 */
168#define ARCH_SLAB_MINALIGN 0
169#endif
170
171#ifndef ARCH_KMALLOC_FLAGS 147#ifndef ARCH_KMALLOC_FLAGS
172#define ARCH_KMALLOC_FLAGS SLAB_HWCACHE_ALIGN 148#define ARCH_KMALLOC_FLAGS SLAB_HWCACHE_ALIGN
173#endif 149#endif