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 12/14] riscv: switch to generic version of pte allocation Date: Wed, 8 May 2019 09:17:09 +0300 Message-ID: <1557296232-15361-13-git-send-email-rppt@linux.ibm.com> (raw) In-Reply-To: <1557296232-15361-1-git-send-email-rppt@linux.ibm.com> The only difference between the generic and RISC-V implementation of PTE allocation is the usage of __GFP_RETRY_MAYFAIL for both kernel and user PTEs and the absence of __GFP_ACCOUNT for the user PTEs. The conversion to the generic version removes the __GFP_RETRY_MAYFAIL and ensures that GFP_ACCOUNT is used for the user PTE allocations. 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> Reviewed-by: Palmer Dabbelt <palmer@sifive.com> --- arch/riscv/include/asm/pgalloc.h | 29 ++--------------------------- 1 file changed, 2 insertions(+), 27 deletions(-) diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h index 94043cf..48f28bb 100644 --- a/arch/riscv/include/asm/pgalloc.h +++ b/arch/riscv/include/asm/pgalloc.h @@ -18,6 +18,8 @@ #include <linux/mm.h> #include <asm/tlb.h> +#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) { @@ -82,33 +84,6 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) #endif /* __PAGETABLE_PMD_FOLDED */ -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) -{ - return (pte_t *)__get_free_page( - GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO); -} - -static inline struct page *pte_alloc_one(struct mm_struct *mm) -{ - struct page *pte; - - pte = alloc_page(GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO); - if (likely(pte != NULL)) - pgtable_page_ctor(pte); - 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, pgtable_t pte) -{ - pgtable_page_dtor(pte); - __free_page(pte); -} - #define __pte_free_tlb(tlb, pte, buf) \ do { \ pgtable_page_dtor(pte); \ -- 2.7.4 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next 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 ` Mike Rapoport [this message] 2019-05-08 6:17 ` [PATCH v2 13/14] um: " Mike Rapoport 2019-05-08 6:17 ` [PATCH v2 14/14] unicore32: " Mike Rapoport
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1557296232-15361-13-git-send-email-rppt@linux.ibm.com \ --to=rppt@linux.ibm.com \ --cc=akpm@linux-foundation.org \ --cc=anshuman.khandual@arm.com \ --cc=arnd@arndb.de \ --cc=catalin.marinas@arm.com \ --cc=deller@gmx.de \ --cc=geert@linux-m68k.org \ --cc=green.hu@gmail.com \ --cc=guoren@kernel.org \ --cc=gxt@pku.edu.cn \ --cc=lftan@altera.com \ --cc=linux-alpha@vger.kernel.org \ --cc=linux-arch@vger.kernel.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-hexagon@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-m68k@lists.linux-m68k.org \ --cc=linux-mips@vger.kernel.org \ --cc=linux-mm@kvack.org \ --cc=linux-parisc@vger.kernel.org \ --cc=linux-riscv@lists.infradead.org \ --cc=linux-um@lists.infradead.org \ --cc=linux@armlinux.org.uk \ --cc=linuxppc-dev@lists.ozlabs.org \ --cc=mattst88@gmail.com \ --cc=mhocko@suse.com \ --cc=mpe@ellerman.id.au \ --cc=nios2-dev@lists.rocketboards.org \ --cc=palmer@sifive.com \ --cc=paul.burton@mips.com \ --cc=richard@nod.at \ --cc=rkuo@codeaurora.org \ --cc=sammy@sammy.net \ --cc=willy@infradead.org \ --cc=x86@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
Linux-RISC-V Archive on lore.kernel.org Archives are clonable: git clone --mirror https://lore.kernel.org/linux-riscv/0 linux-riscv/git/0.git # If you have public-inbox 1.1+ installed, you may # initialize and index your mirror using the following commands: public-inbox-init -V2 linux-riscv linux-riscv/ https://lore.kernel.org/linux-riscv \ linux-riscv@lists.infradead.org public-inbox-index linux-riscv Example config snippet for mirrors Newsgroup available over NNTP: nntp://nntp.lore.kernel.org/org.infradead.lists.linux-riscv AGPL code for this site: git clone https://public-inbox.org/public-inbox.git