From 2994302bc8a17180788fac66a47102d338d5d0ec Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 14 Dec 2016 15:07:16 -0800 Subject: mm: add orig_pte field into vm_fault 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/1479460644-25076-8-git-send-email-jack@suse.cz Signed-off-by: Jan Kara Reviewed-by: Ross Zwisler Acked-by: Kirill A. Shutemov Cc: Dan Williams Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/khugepaged.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'mm/khugepaged.c') diff --git a/mm/khugepaged.c b/mm/khugepaged.c index f062d54c9683..7434a63cac94 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -875,7 +875,6 @@ static bool __collapse_huge_page_swapin(struct mm_struct *mm, unsigned long address, pmd_t *pmd, int referenced) { - pte_t pteval; int swapped_in = 0, ret = 0; struct vm_fault vmf = { .vma = vma, @@ -893,11 +892,11 @@ static bool __collapse_huge_page_swapin(struct mm_struct *mm, vmf.pte = pte_offset_map(pmd, address); for (; vmf.address < address + HPAGE_PMD_NR*PAGE_SIZE; vmf.pte++, vmf.address += PAGE_SIZE) { - pteval = *vmf.pte; - if (!is_swap_pte(pteval)) + vmf.orig_pte = *vmf.pte; + if (!is_swap_pte(vmf.orig_pte)) continue; swapped_in++; - ret = do_swap_page(&vmf, pteval); + ret = do_swap_page(&vmf); /* do_swap_page returns VM_FAULT_RETRY with released mmap_sem */ if (ret & VM_FAULT_RETRY) { -- cgit v1.2.3