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Re: [PATCHv2 7/7] x86/mm: Switch to generic get_user_page_fast() implementation

From "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCHv2 7/7] x86/mm: Switch to generic get_user_page_fast() implementation
Date 2017-03-17 18:40 +0100
Message-ID <tm414-1ya-29@gated-at.bofh.it> (permalink)
References <tlFvJ-gv-59@gated-at.bofh.it> <tlLhM-4jI-27@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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@linux.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

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Thread

[PATCH 0/7] Switch x86 to generic get_user_pages_fast() implementation "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-03-16 16:30 +0100
  [PATCH 3/7] mm/gup: Move page table entry dereference into helper "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-03-16 16:30 +0100
    [tip:x86/mm] mm/gup: Move page table entry dereference into helper  function "tip-bot for Kirill A. Shutemov" <tipbot@zytor.com> - 2017-03-18 11:00 +0100
  [PATCH 4/7] mm/gup: Make pages referenced during generic get_user_pages_fast() "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-03-16 16:30 +0100
    [tip:x86/mm] mm/gup: Mark all pages PageReferenced in generic  get_user_pages_fast() "tip-bot for Kirill A. Shutemov" <tipbot@zytor.com> - 2017-03-18 11:00 +0100
  [PATCH 7/7] x86/mm: Switch to generic get_user_page_fast() implementation "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-03-16 16:30 +0100
    Re: [PATCH 7/7] x86/mm: Switch to generic get_user_page_fast()  implementation Peter Zijlstra <peterz@infradead.org> - 2017-03-16 18:30 +0100
      Re: [PATCH 7/7] x86/mm: Switch to generic get_user_page_fast()  implementation "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-03-16 20:20 +0100
    [PATCHv2 7/7] x86/mm: Switch to generic get_user_page_fast() implementation "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-03-16 22:40 +0100
      Re: [PATCHv2 7/7] x86/mm: Switch to generic get_user_page_fast()  implementation "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-03-17 18:40 +0100
      [tip:x86/mm] x86/mm/gup: Switch GUP to the generic  get_user_page_fast() implementation "tip-bot for Kirill A. Shutemov" <tipbot@zytor.com> - 2017-03-18 12:50 +0100
  [PATCH 1/7] mm: Drop arch_pte_access_permitted() mmu hook "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-03-16 16:40 +0100
    [tip:x86/mm] mm/gup: Drop the arch_pte_access_permitted() MMU  callback "tip-bot for Kirill A. Shutemov" <tipbot@zytor.com> - 2017-03-18 11:00 +0100
  Re: [PATCH 0/7] Switch x86 to generic get_user_pages_fast() implementation Linus Torvalds <torvalds@linux-foundation.org> - 2017-03-16 19:10 +0100
  Re: [PATCH 0/7] Switch x86 to generic get_user_pages_fast()  implementation Ingo Molnar <mingo@kernel.org> - 2017-03-17 09:40 +0100

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