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powerpc/mm: refactor pgd_alloc() and pgd_free() on nohash 

pgd_alloc() and pgd_free() are identical on nohash 32 and 64.

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>
This commit is contained in:
Christophe Leroy 2019-04-26 15:58:13 +00:00 committed by Michael Ellerman
parent 8a2cc87a24
commit 069239169a
3 changed files with 12 additions and 22 deletions
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11
arch/powerpc/include/asm/nohash/32/pgalloc.h
View File

@ -5,17 +5,6 @@
#include <linux/threads.h>
#include <linux/slab.h>
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd);
}
/*
* We don't have any real pmd's, and this code never triggers because
* the pgd will always be present..

11
arch/powerpc/include/asm/nohash/64/pgalloc.h
View File

@ -18,17 +18,6 @@ struct vmemmap_backing {
};
extern struct vmemmap_backing *vmemmap_list;
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd);
}
#define pgd_populate(MM, PGD, PUD) pgd_set(PGD, (unsigned long)PUD)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)

12
arch/powerpc/include/asm/nohash/pgalloc.h
View File

@ -3,6 +3,7 @@
#define _ASM_POWERPC_NOHASH_PGALLOC_H
#include <linux/mm.h>
#include <linux/slab.h>
extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
#ifdef CONFIG_PPC64
@ -16,6 +17,17 @@ static inline void tlb_flush_pgtable(struct mmu_gather *tlb,
}
#endif /* !CONFIG_PPC_BOOK3E */
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd);
}
#ifdef CONFIG_PPC64
#include <asm/nohash/64/pgalloc.h>
#else