bc3ace9b52
alpha allocates PTE pages with __get_free_page() and uses GFP_KERNEL | __GFP_ZERO for the allocations. Switch it to the generic version that does exactly the same thing for the kernel page tables and adds __GFP_ACCOUNT for the user PTEs. The alpha pte_free() and pte_free_kernel() versions are identical to the generic ones and can be simply dropped. Link: http://lkml.kernel.org/r/1557296232-15361-3-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Guo Ren <ren_guo@c-sky.com> Cc: Helge Deller <deller@gmx.de> Cc: Ley Foon Tan <lftan@altera.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@armlinux.org.uk> Cc: Sam Creasey <sammy@sammy.net> Cc: Vincent Chen <deanbo422@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ALPHA_PGALLOC_H
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#define _ALPHA_PGALLOC_H
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#include <linux/mm.h>
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#include <linux/mmzone.h>
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#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */
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/*
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* Allocate and free page tables. The xxx_kernel() versions are
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* used to allocate a kernel page table - this turns on ASN bits
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* if any.
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*/
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static inline void
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pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte)
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{
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pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
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}
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#define pmd_pgtable(pmd) pmd_page(pmd)
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static inline void
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pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
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{
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pmd_set(pmd, pte);
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}
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static inline void
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pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
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{
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pgd_set(pgd, pmd);
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}
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extern pgd_t *pgd_alloc(struct mm_struct *mm);
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static inline void
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pgd_free(struct mm_struct *mm, pgd_t *pgd)
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{
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free_page((unsigned long)pgd);
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}
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static inline pmd_t *
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pmd_alloc_one(struct mm_struct *mm, unsigned long address)
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{
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pmd_t *ret = (pmd_t *)__get_free_page(GFP_PGTABLE_USER);
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return ret;
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}
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static inline void
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pmd_free(struct mm_struct *mm, pmd_t *pmd)
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{
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free_page((unsigned long)pmd);
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}
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#define check_pgt_cache() do { } while (0)
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#endif /* _ALPHA_PGALLOC_H */
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