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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2018-04-06 02:20:11 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-06 07:36:23 +0300 |
| commit | 1c99ba2918df372c7cb1fde81d8a6311fdd62aab (patch) | |
| tree | ea6f163697fd26035e0727168278eb192c87ae0b | |
| parent | 849cf55963dfd877ad92996195e0fe7218eaf0e9 (diff) | |
| download | linux-1c99ba2918df372c7cb1fde81d8a6311fdd62aab.tar.xz | |
mm/slab_common.c: mark kmalloc machinery as __ro_after_init
kmalloc caches aren't relocated after being set up neither does
"size_index" array.
Link: http://lkml.kernel.org/r/20180226203519.GA6886@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/slab_common.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 10f127b2de7c..a1237d38a27e 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -10,6 +10,7 @@ #include <linux/poison.h> #include <linux/interrupt.h> #include <linux/memory.h> +#include <linux/cache.h> #include <linux/compiler.h> #include <linux/module.h> #include <linux/cpu.h> @@ -954,11 +955,11 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size, return s; } -struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1]; +struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1] __ro_after_init; EXPORT_SYMBOL(kmalloc_caches); #ifdef CONFIG_ZONE_DMA -struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1]; +struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1] __ro_after_init; EXPORT_SYMBOL(kmalloc_dma_caches); #endif @@ -968,7 +969,7 @@ EXPORT_SYMBOL(kmalloc_dma_caches); * of two cache sizes there. The size of larger slabs can be determined using * fls. */ -static s8 size_index[24] = { +static s8 size_index[24] __ro_after_init = { 3, /* 8 */ 4, /* 16 */ 5, /* 24 */ |