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author | Mike Rapoport <rppt@linux.ibm.com> | 2019-07-12 05:58:06 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-12 20:05:45 +0200 |
commit | bd5ff066514c2dcffd443cfaa55580db0f19caf8 (patch) | |
tree | 17029920afa83dc79e6fef430fac608671d0d766 /arch/csky/include | |
parent | arm64: switch to generic version of pte allocation (diff) | |
download | linux-bd5ff066514c2dcffd443cfaa55580db0f19caf8.tar.xz linux-bd5ff066514c2dcffd443cfaa55580db0f19caf8.zip |
csky: switch to generic version of pte allocation
The csky implementation pte_alloc_one(), pte_free_kernel() and pte_free()
is identical to the generic except of lack of __GFP_ACCOUNT for the user
PTEs allocation.
Switch csky to use generic version of these functions.
The csky implementation of pte_alloc_one_kernel() is not replaced because
it does not clear the allocated page but rather sets each PTE in it to a
non-zero value.
The pte_free_kernel() and pte_free() versions on csky are identical to the
generic ones and can be simply dropped.
Link: http://lkml.kernel.org/r/1557296232-15361-6-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Guo Ren <ren_guo@c-sky.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: 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>
Diffstat (limited to 'arch/csky/include')
-rw-r--r-- | arch/csky/include/asm/pgalloc.h | 30 |
1 files changed, 3 insertions, 27 deletions
diff --git a/arch/csky/include/asm/pgalloc.h b/arch/csky/include/asm/pgalloc.h index d213bb47b717..98c5716708d6 100644 --- a/arch/csky/include/asm/pgalloc.h +++ b/arch/csky/include/asm/pgalloc.h @@ -8,6 +8,9 @@ #include <linux/mm.h> #include <linux/sched.h> +#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL +#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */ + static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { @@ -39,33 +42,6 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) return pte; } -static inline struct page *pte_alloc_one(struct mm_struct *mm) -{ - struct page *pte; - - pte = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0); - if (!pte) - return NULL; - - if (!pgtable_page_ctor(pte)) { - __free_page(pte); - return NULL; - } - - return pte; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_pages((unsigned long)pte, PTE_ORDER); -} - -static inline void pte_free(struct mm_struct *mm, pgtable_t pte) -{ - pgtable_page_dtor(pte); - __free_pages(pte, PTE_ORDER); -} - static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { free_pages((unsigned long)pgd, PGD_ORDER); |