linux-kernel - Re: [PATCHv2 7/7] x86/mm: Switch to generic get_user_page

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Date:   Fri, 17 Mar 2017 20:27:57 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     Dave Hansen <dave.hansen@...el.com>,
        "Aneesh Kumar K . V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Steve Capper <steve.capper@...aro.org>,
        Dann Frazier <dann.frazier@...onical.com>,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2 7/7] x86/mm: Switch to generic get_user_page_fast()
 implementation

On Fri, Mar 17, 2017 at 12:39:06AM +0300, Kirill A. Shutemov wrote:
> The patch provides all required hooks to match generic
> get_user_pages_fast() behaviour to x86 and switch x86 over.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> ---
>  v2:
>     - Fix build on non-PAE 32-bit x86;

Fixup for allmodconfig on x86-64:

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index e55fe9475979..e1a0a1fb5971 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -230,13 +230,13 @@ static inline int pud_devmap(pud_t pud)
 {
 	return 0;
 }
+#endif
 
 static inline int pgd_devmap(pgd_t pgd)
 {
 	return 0;
 }
 #endif
-#endif
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 static inline pte_t pte_set_flags(pte_t pte, pteval_t set)
-- 
 Kirill A. Shutemov