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Commit 06923916 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

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



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

Reviewed-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 8a2cc87a

arch/powerpc/include/asm/nohash/32/pgalloc.h

+0 −11
Original line number Diff line number Diff line
@@ -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..

arch/powerpc/include/asm/nohash/64/pgalloc.h

+0 −11
Original line number Diff line number Diff line
@@ -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)

arch/powerpc/include/asm/nohash/pgalloc.h

+12 −0
Original line number Diff line number Diff line
@@ -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