Linux-parisc archive on lore.kernel.org
 help / color / Atom feed
From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Mike Rapoport <rppt@linux.ibm.com>,
	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, Guo Ren <guoren@kernel.org>,
	linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-arch@vger.kernel.org, Helge Deller <deller@gmx.de>,
	x86@kernel.org, Russell King <linux@armlinux.org.uk>,
	Matthew Wilcox <willy@infradead.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Matt Turner <mattst88@gmail.com>, Sam Creasey <sammy@sammy.net>,
	Arnd Bergmann <arnd@arndb.de>,
	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: Re: [PATCH 12/15] powerpc/nohash/64: switch to generic version of pte allocation
Date: Thu, 2 May 2019 18:56:07 +0200
Message-ID: <adcb6ae6-48d9-5ba9-2732-a0ab1d96667c@c-s.fr> (raw)
In-Reply-To: <1556810922-20248-13-git-send-email-rppt@linux.ibm.com>



Le 02/05/2019 à 17:28, Mike Rapoport a écrit :
> The 64-bit book-E powerpc implements pte_alloc_one(),
> pte_alloc_one_kernel(), pte_free_kernel() and pte_free() the same way as
> the generic version.

Will soon be converted to the same as the 3 other PPC subarches, see
https://patchwork.ozlabs.org/patch/1091590/

Christophe

> 
> Switch it to the generic version that does exactly the same thing.
> 
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> ---
>   arch/powerpc/include/asm/nohash/64/pgalloc.h | 35 ++--------------------------
>   1 file changed, 2 insertions(+), 33 deletions(-)
> 
> diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
> index 66d086f..bfb53a0 100644
> --- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
> +++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
> @@ -11,6 +11,8 @@
>   #include <linux/cpumask.h>
>   #include <linux/percpu.h>
>   
> +#include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */
> +
>   struct vmemmap_backing {
>   	struct vmemmap_backing *list;
>   	unsigned long phys;
> @@ -92,39 +94,6 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>   	kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
>   }
>   
> -
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
> -{
> -	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
> -}
> -
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
> -{
> -	struct page *page;
> -	pte_t *pte;
> -
> -	pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO | __GFP_ACCOUNT);
> -	if (!pte)
> -		return NULL;
> -	page = virt_to_page(pte);
> -	if (!pgtable_page_ctor(page)) {
> -		__free_page(page);
> -		return NULL;
> -	}
> -	return page;
> -}
> -
> -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 ptepage)
> -{
> -	pgtable_page_dtor(ptepage);
> -	__free_page(ptepage);
> -}
> -
>   static inline void pgtable_free(void *table, int shift)
>   {
>   	if (!shift) {
> 

  reply index

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-02 15:28 [PATCH 00/15] introduce generic pte_{alloc,free}_one[_kernel] Mike Rapoport
2019-05-02 15:28 ` [PATCH 01/15] asm-generic, x86: " Mike Rapoport
2019-05-02 19:03   ` Paul Burton
2019-05-05  6:15     ` Mike Rapoport
2019-05-02 15:28 ` [PATCH 02/15] alpha: switch to generic version of pte allocation Mike Rapoport
2019-05-02 15:28 ` [PATCH 03/15] arm: " Mike Rapoport
2019-05-02 15:28 ` [PATCH 04/15] arm64: " Mike Rapoport
2019-05-03 10:05   ` Mark Rutland
2019-05-05  6:19     ` Mike Rapoport
2019-05-02 15:28 ` [PATCH 05/15] csky: " Mike Rapoport
2019-05-03 16:03   ` Guo Ren
2019-05-03 16:18     ` Guo Ren
2019-05-02 15:28 ` [PATCH 06/15] hexagon: " Mike Rapoport
2019-05-02 15:28 ` [PATCH 07/15] m68k: sun3: " Mike Rapoport
2019-05-02 15:28 ` [PATCH 08/15] mips: " Mike Rapoport
2019-05-02 19:09   ` Paul Burton
2019-05-05  6:17     ` Mike Rapoport
2019-05-02 15:28 ` [PATCH 09/15] nds32: " Mike Rapoport
2019-05-07  6:49   ` Greentime Hu
2019-05-02 15:28 ` [PATCH 10/15] nios2: " Mike Rapoport
2019-05-02 15:28 ` [PATCH 11/15] parisc: " Mike Rapoport
2019-05-02 15:28 ` [PATCH 12/15] powerpc/nohash/64: " Mike Rapoport
2019-05-02 16:56   ` Christophe Leroy [this message]
2019-05-05  6:23     ` Mike Rapoport
2019-05-02 15:28 ` [PATCH 13/15] riscv: " Mike Rapoport
2019-05-06 18:25   ` Palmer Dabbelt
2019-05-02 15:28 ` [PATCH 14/15] um: " Mike Rapoport
2019-05-03 13:28   ` Anton Ivanov
2019-05-02 15:28 ` [PATCH 15/15] unicore32: " Mike Rapoport

Reply instructions:

You may reply publically 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=adcb6ae6-48d9-5ba9-2732-a0ab1d96667c@c-s.fr \
    --to=christophe.leroy@c-s.fr \
    --cc=akpm@linux-foundation.org \
    --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-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=nios2-dev@lists.rocketboards.org \
    --cc=palmer@sifive.com \
    --cc=paul.burton@mips.com \
    --cc=richard@nod.at \
    --cc=rkuo@codeaurora.org \
    --cc=rppt@linux.ibm.com \
    --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-parisc archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-parisc/0 linux-parisc/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-parisc linux-parisc/ https://lore.kernel.org/linux-parisc \
		linux-parisc@vger.kernel.org linux-parisc@archiver.kernel.org
	public-inbox-index linux-parisc


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-parisc


AGPL code for this site: git clone https://public-inbox.org/ public-inbox