From: Mike Rapoport <rppt@linux.ibm.com> To: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com>, Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>, linux-mips@vger.kernel.org, linux-mm@kvack.org, Guo Ren <guoren@kernel.org>, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>, Helge Deller <deller@gmx.de>, x86@kernel.org, Russell King <linux@armlinux.org.uk>, Matthew Wilcox <willy@infradead.org>, Mike Rapoport <rppt@linux.ibm.com>, Geert Uytterhoeven <geert@linux-m68k.org>, Matt Turner <mattst88@gmail.com>, Sam Creasey <sammy@sammy.net>, Arnd Bergmann <arnd@arndb.de>, Anshuman Khandual <anshuman.khandual@arm.com>, linux-um@lists.infradead.org, Richard Weinberger <richard@nod.at>, linux-m68k@lists.linux-m68k.org, Greentime Hu <green.hu@gmail.com>, nios2-dev@lists.rocketboards.org, Guan Xuetao <gxt@pku.edu.cn>, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, Richard Kuo <rkuo@codeaurora.org>, Paul Burton <paul.burton@mips.com>, linux-alpha@vger.kernel.org, Ley Foon Tan <lftan@altera.com>, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 14/14] unicore32: switch to generic version of pte allocation Date: Wed, 8 May 2019 09:17:11 +0300 Message-ID: <1557296232-15361-15-git-send-email-rppt@linux.ibm.com> (raw) In-Reply-To: <1557296232-15361-1-git-send-email-rppt@linux.ibm.com> Replace __get_free_page() and alloc_pages() calls with the generic __pte_alloc_one_kernel() and __pte_alloc_one(). There is no functional change for the kernel PTE allocation. The difference for the user PTEs, is that the clear_pte_table() is now called after pgtable_page_ctor() and the addition of __GFP_ACCOUNT to the GFP flags. The pte_free() and pte_free_kernel() versions are identical to the generic ones and can be simply dropped. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> --- arch/unicore32/include/asm/pgalloc.h | 36 ++++++++---------------------------- 1 file changed, 8 insertions(+), 28 deletions(-) diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h index 7cceabe..dd09af6 100644 --- a/arch/unicore32/include/asm/pgalloc.h +++ b/arch/unicore32/include/asm/pgalloc.h @@ -17,6 +17,10 @@ #include <asm/cacheflush.h> #include <asm/tlbflush.h> +#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL +#define __HAVE_ARCH_PTE_ALLOC_ONE +#include <asm-generic/pgalloc.h> + #define check_pgt_cache() do { } while (0) #define _PAGE_USER_TABLE (PMD_TYPE_TABLE | PMD_PRESENT) @@ -28,17 +32,14 @@ extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd); #define pgd_alloc(mm) get_pgd_slow(mm) #define pgd_free(mm, pgd) free_pgd_slow(mm, pgd) -#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO) - /* * Allocate one PTE table. */ static inline pte_t * pte_alloc_one_kernel(struct mm_struct *mm) { - pte_t *pte; + pte_t *pte = __pte_alloc_one_kernel(mm); - pte = (pte_t *)__get_free_page(PGALLOC_GFP); if (pte) clean_dcache_area(pte, PTRS_PER_PTE * sizeof(pte_t)); @@ -50,35 +51,14 @@ pte_alloc_one(struct mm_struct *mm) { struct page *pte; - pte = alloc_pages(PGALLOC_GFP, 0); + pte = __pte_alloc_one(mm, GFP_PGTABLE_USER); if (!pte) return NULL; - if (!PageHighMem(pte)) { - void *page = page_address(pte); - clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t)); - } - if (!pgtable_page_ctor(pte)) { - __free_page(pte); - } - + if (!PageHighMem(pte)) + clean_pte_table(page_address(pte)); return pte; } -/* - * Free one PTE table. - */ -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - if (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); -} - static inline void __pmd_populate(pmd_t *pmdp, unsigned long pmdval) { set_pmd(pmdp, __pmd(pmdval)); -- 2.7.4 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
prev parent reply index Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-08 6:16 [PATCH v2 00/14] introduce generic pte_{alloc,free}_one[_kernel] Mike Rapoport 2019-05-08 6:16 ` [PATCH v2 01/14] asm-generic, x86: introduce generic pte_{alloc, free}_one[_kernel] Mike Rapoport 2019-05-08 6:16 ` [PATCH v2 02/14] alpha: switch to generic version of pte allocation Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 03/14] arm: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 04/14] arm64: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 05/14] csky: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 06/14] hexagon: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 07/14] m68k: sun3: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 08/14] mips: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 09/14] nds32: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 10/14] nios2: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 11/14] parisc: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 12/14] riscv: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 13/14] um: " Mike Rapoport 2019-05-08 6:17 ` Mike Rapoport [this message]
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