Commit 6fb12766 authored by Mike Rapoport's avatar Mike Rapoport Committed by Linus Torvalds
Browse files

sh: switch to generic version of pte allocation 

The sh implementation pte_alloc_one(), pte_alloc_one_kernel(),
pte_free_kernel() and pte_free() is identical to the generic except of
lack of __GFP_ACCOUNT for the user PTEs allocation.

Switch sh to use generic version of these functions.

Link: http://lkml.kernel.org/r/1565250728-21721-4-git-send-email-rppt@linux.ibm.com


Signed-off-by: default avatarMike Rapoport <rppt@linux.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 01319921

arch/sh/include/asm/pgalloc.h

+1 −33
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 
#define __ASM_SH_PGALLOC_H



#include <asm/page.h>

#include <asm-generic/pgalloc.h>



extern pgd_t *pgd_alloc(struct mm_struct *);

extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
@@ -26,39 +27,6 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, 
}

#define pmd_pgtable(pmd) pmd_page(pmd)



/*

 * Allocate and free page tables.

 */

static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)

{

	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);

}



static inline pgtable_t pte_alloc_one(struct mm_struct *mm)

{

	struct page *page;



	page = alloc_page(GFP_KERNEL | __GFP_ZERO);

	if (!page)

		return NULL;

	if (!pgtable_page_ctor(page)) {

		__free_page(page);

		return NULL;

	}

	return page;

}



static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)

{

	free_page((unsigned long)pte);

}



static inline void pte_free(struct mm_struct *mm, pgtable_t pte)

{

	pgtable_page_dtor(pte);

	__free_page(pte);

}



#define __pte_free_tlb(tlb,pte,addr)			\

do {							\

	pgtable_page_dtor(pte);				\