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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2017-03-16 18:26:49 +0300
committerIngo Molnar <mingo@kernel.org>2017-03-18 09:48:01 +0100
commit9a804fecee232e71b47ac37d62fd3d5d66b08b91 (patch)
treec4af2fbda421d6bd1b6f5f6599d6cccd32548bb4 /arch/um
parentf991376e444aee8f5643a45703c1433bf7948940 (diff)
downloadlinux-9a804fecee232e71b47ac37d62fd3d5d66b08b91.tar.bz2
mm/gup: Drop the arch_pte_access_permitted() MMU callback
The only arch that defines it to something meaningful is x86. But x86 doesn't use the generic GUP_fast() implementation -- the only place where the callback is called. Let's drop it. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Aneesh Kumar K . V <aneesh.kumar@linux.vnet.ibm.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dann Frazier <dann.frazier@canonical.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Steve Capper <steve.capper@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170316152655.37789-2-kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/include/asm/mmu_context.h6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index 94ac2739918c..b668e351fd6c 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -37,12 +37,6 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
return true;
}
-static inline bool arch_pte_access_permitted(pte_t pte, bool write)
-{
- /* by default, allow everything */
- return true;
-}
-
/*
* end asm-generic/mm_hooks.h functions
*/