diff options
author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-04-26 15:58:09 +0000 |
---|---|---|
committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-05-03 01:20:25 +1000 |
commit | e80789a3c13f9fbc8f361a988868f9b68a8cf134 (patch) | |
tree | a3adad3b3dcb9c334cf3fc74536b8211b7490a93 /arch/powerpc/include/asm/book3s/32/pgalloc.h | |
parent | powerpc/mm: refactor pte_alloc_one() and pte_free() families definition. (diff) | |
download | linux-dev-e80789a3c13f9fbc8f361a988868f9b68a8cf134.tar.xz linux-dev-e80789a3c13f9fbc8f361a988868f9b68a8cf134.zip |
powerpc/mm: refactor definition of pgtable_cache[]
pgtable_cache[] is the same for the 4 subarches, lets make it common.
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/32/pgalloc.h')
-rw-r--r-- | arch/powerpc/include/asm/book3s/32/pgalloc.h | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h index 46422309d6e0..1b9b5c228230 100644 --- a/arch/powerpc/include/asm/book3s/32/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h @@ -5,26 +5,6 @@ #include <linux/threads.h> #include <linux/slab.h> -/* - * Functions that deal with pagetables that could be at any level of - * the table need to be passed an "index_size" so they know how to - * handle allocation. For PTE pages (which are linked to a struct - * page for now, and drawn from the main get_free_pages() pool), the - * allocation size will be (2^index_size * sizeof(pointer)) and - * allocations are drawn from the kmem_cache in PGT_CACHE(index_size). - * - * The maximum index size needs to be big enough to allow any - * pagetable sizes we need, but small enough to fit in the low bits of - * any page table pointer. In other words all pagetables, even tiny - * ones, must be aligned to allow at least enough low 0 bits to - * contain this value. This value is also used as a mask, so it must - * be one less than a power of two. - */ -#define MAX_PGTABLE_INDEX_SIZE 0xf - -extern struct kmem_cache *pgtable_cache[]; -#define PGT_CACHE(shift) pgtable_cache[shift] - static inline pgd_t *pgd_alloc(struct mm_struct *mm) { return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), @@ -69,7 +49,6 @@ static inline void pgtable_free(void *table, unsigned index_size) } } -#define check_pgt_cache() do { } while (0) #define get_hugepd_cache_index(x) (x) #ifdef CONFIG_SMP |