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mm: add orig_pte field into vm_fault

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Add orig_pte field to vm_fault structure to allow ->page_mkwrite
handlers to fully handle the fault.

This also allows us to save some passing of extra arguments around.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jan Kara <[email protected]>
Reviewed-by: Ross Zwisler <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Cc: Dan Williams <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Jan Kara 2016-12-14 15:07:16 -08:00 • committed by Linus Torvalds
commit 2994302bc8
4 changed files with 47 additions and 48 deletions
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2
mm/internal.h
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@ -36,7 +36,7 @@
/* Do not use these with a slab allocator */
#define GFP_SLAB_BUG_MASK (__GFP_DMA32|__GFP_HIGHMEM|~__GFP_BITS_MASK)
int do_swap_page(struct vm_fault *vmf, pte_t orig_pte);
int do_swap_page(struct vm_fault *vmf);
void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma,
unsigned long floor, unsigned long ceiling);