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| author | Jiri Kosina <jkosina@suse.cz> | 2010-06-16 18:08:13 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-06-16 18:08:13 +0200 |
| commit | f1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b (patch) | |
| tree | c2c130a74be25b0b2dff992e1a195e2728bdaadd /include/linux/slab_def.h | |
| parent | fd0961ff67727482bb20ca7e8ea97b83e9de2ddb (diff) | |
| parent | 7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff) | |
| download | talos-op-linux-f1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b.tar.gz talos-op-linux-f1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b.zip | |
Merge branch 'master' into for-next
Diffstat (limited to 'include/linux/slab_def.h')
| -rw-r--r-- | include/linux/slab_def.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h index ca6b2b317991..1812dac8c496 100644 --- a/include/linux/slab_def.h +++ b/include/linux/slab_def.h @@ -16,6 +16,30 @@ #include <linux/compiler.h> #include <linux/kmemtrace.h> +#ifndef ARCH_KMALLOC_MINALIGN +/* + * Enforce a minimum alignment for the kmalloc caches. + * Usually, the kmalloc caches are cache_line_size() aligned, except when + * DEBUG and FORCED_DEBUG are enabled, then they are BYTES_PER_WORD aligned. + * Some archs want to perform DMA into kmalloc caches and need a guaranteed + * alignment larger than the alignment of a 64-bit integer. + * ARCH_KMALLOC_MINALIGN allows that. + * Note that increasing this value may disable some debug features. + */ +#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long) +#endif + +#ifndef ARCH_SLAB_MINALIGN +/* + * Enforce a minimum alignment for all caches. + * Intended for archs that get misalignment faults even for BYTES_PER_WORD + * aligned buffers. Includes ARCH_KMALLOC_MINALIGN. + * If possible: Do not enable this flag for CONFIG_DEBUG_SLAB, it disables + * some debug features. + */ +#define ARCH_SLAB_MINALIGN 0 +#endif + /* * struct kmem_cache * |
