summaryrefslogtreecommitdiffstats
path: root/mm/hugetlb.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/hugetlb.c')
-rw-r--r--mm/hugetlb.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ea8c3a4cd2ae..5f34bd8dda34 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2508,6 +2508,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
{
struct hstate *h = hstate_vma(vma);
int ret = VM_FAULT_SIGBUS;
+ int anon_rmap = 0;
pgoff_t idx;
unsigned long size;
struct page *page;
@@ -2562,14 +2563,13 @@ retry:
spin_lock(&inode->i_lock);
inode->i_blocks += blocks_per_huge_page(h);
spin_unlock(&inode->i_lock);
- page_dup_rmap(page);
} else {
lock_page(page);
if (unlikely(anon_vma_prepare(vma))) {
ret = VM_FAULT_OOM;
goto backout_unlocked;
}
- hugepage_add_new_anon_rmap(page, vma, address);
+ anon_rmap = 1;
}
} else {
/*
@@ -2582,7 +2582,6 @@ retry:
VM_FAULT_SET_HINDEX(h - hstates);
goto backout_unlocked;
}
- page_dup_rmap(page);
}
/*
@@ -2606,6 +2605,10 @@ retry:
if (!huge_pte_none(huge_ptep_get(ptep)))
goto backout;
+ if (anon_rmap)
+ hugepage_add_new_anon_rmap(page, vma, address);
+ else
+ page_dup_rmap(page);
new_pte = make_huge_pte(vma, page, ((vma->vm_flags & VM_WRITE)
&& (vma->vm_flags & VM_SHARED)));
set_huge_pte_at(mm, address, ptep, new_pte);