mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-14 12:49:08 +00:00
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>
This commit is contained in:
parent
f991376e44
commit
9a804fecee
@ -163,11 +163,5 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
|
||||
static inline bool arch_pte_access_permitted(pte_t pte, bool write)
|
||||
{
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
#endif /* __KERNEL__ */
|
||||
#endif /* __ASM_POWERPC_MMU_CONTEXT_H */
|
||||
|
@ -156,10 +156,4 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
|
||||
static inline bool arch_pte_access_permitted(pte_t pte, bool write)
|
||||
{
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
#endif /* __S390_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
|
||||
*/
|
||||
|
@ -103,10 +103,4 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
|
||||
static inline bool arch_pte_access_permitted(pte_t pte, bool write)
|
||||
{
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
|
@ -268,8 +268,4 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
|
||||
return __pkru_allows_pkey(vma_pkey(vma), write);
|
||||
}
|
||||
|
||||
static inline bool arch_pte_access_permitted(pte_t pte, bool write)
|
||||
{
|
||||
return __pkru_allows_pkey(pte_flags_pkey(pte_flags(pte)), write);
|
||||
}
|
||||
#endif /* _ASM_X86_MMU_CONTEXT_H */
|
||||
|
@ -32,10 +32,4 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
|
||||
static inline bool arch_pte_access_permitted(pte_t pte, bool write)
|
||||
{
|
||||
/* by default, allow everything */
|
||||
return true;
|
||||
}
|
||||
#endif /* _ASM_GENERIC_MM_HOOKS_H */
|
||||
|
3
mm/gup.c
3
mm/gup.c
@ -1216,9 +1216,6 @@ static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end,
|
||||
pte_protnone(pte) || (write && !pte_write(pte)))
|
||||
goto pte_unmap;
|
||||
|
||||
if (!arch_pte_access_permitted(pte, write))
|
||||
goto pte_unmap;
|
||||
|
||||
VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
|
||||
page = pte_page(pte);
|
||||
head = compound_head(page);
|
||||
|
Loading…
Reference in New Issue
Block a user