From: Mike Rapoport <rppt@xxxxxxxxxxxxx> Subject: parisc: switch to generic version of pte allocation parisc 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 pte_free_kernel() and pte_free() versions on are identical to the generic ones and can be simply dropped. Link: http://lkml.kernel.org/r/1557296232-15361-12-git-send-email-rppt@xxxxxxxxxxxxx Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx> Cc: Anshuman Khandual <anshuman.khandual@xxxxxxx> Cc: Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Cc: Greentime Hu <green.hu@xxxxxxxxx> Cc: Guan Xuetao <gxt@xxxxxxxxxx> Cc: Guo Ren <guoren@xxxxxxxxxx> Cc: Guo Ren <ren_guo@xxxxxxxxx> Cc: Helge Deller <deller@xxxxxx> Cc: Ley Foon Tan <lftan@xxxxxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Cc: Matt Turner <mattst88@xxxxxxxxx> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Palmer Dabbelt <palmer@xxxxxxxxxx> Cc: Paul Burton <paul.burton@xxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Richard Kuo <rkuo@xxxxxxxxxxxxxx> Cc: Richard Weinberger <richard@xxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxx> Cc: Sam Creasey <sammy@xxxxxxxxx> Cc: Vincent Chen <deanbo422@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/parisc/include/asm/pgalloc.h | 33 +--------------------------- 1 file changed, 2 insertions(+), 31 deletions(-) --- a/arch/parisc/include/asm/pgalloc.h~parisc-switch-to-generic-version-of-pte-allocation +++ a/arch/parisc/include/asm/pgalloc.h @@ -10,6 +10,8 @@ #include <asm/cache.h> +#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */ + /* Allocate the top level pgd (page directory) * * Here (for 64 bit kernels) we implement a Hybrid L2/L3 scheme: we @@ -122,37 +124,6 @@ pmd_populate_kernel(struct mm_struct *mm pmd_populate_kernel(mm, pmd, page_address(pte_page)) #define pmd_pgtable(pmd) pmd_page(pmd) -static inline pgtable_t -pte_alloc_one(struct mm_struct *mm) -{ - struct 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 pte_t * -pte_alloc_one_kernel(struct mm_struct *mm) -{ - pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO); - return pte; -} - -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, struct page *pte) -{ - pgtable_page_dtor(pte); - pte_free_kernel(mm, page_address(pte)); -} - #define check_pgt_cache() do { } while (0) #endif _
