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| author | David S. Miller <davem@davemloft.net> | 2016-07-23 19:31:37 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-07-24 00:53:32 -0400 |
| commit | de0ba9a0d8909996f9e293d311c2cc459fa77d67 (patch) | |
| tree | 199214afc477824bf431d11d08834ff7555c994b /mm/rmap.c | |
| parent | d95a93a9b71677a43f967a1b7986decab84b7765 (diff) | |
| parent | 107df03203bb66de56e2caec3bde6d22b55480c5 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Just several instances of overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 0ea5d9071b32..701b93fea2a0 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1084,23 +1084,20 @@ EXPORT_SYMBOL_GPL(page_mkclean); * page_move_anon_rmap - move a page to our anon_vma * @page: the page to move to our anon_vma * @vma: the vma the page belongs to - * @address: the user virtual address mapped * * When a page belongs exclusively to one process after a COW event, * that page can be moved into the anon_vma that belongs to just that * process, so the rmap code will not search the parent or sibling * processes. */ -void page_move_anon_rmap(struct page *page, - struct vm_area_struct *vma, unsigned long address) +void page_move_anon_rmap(struct page *page, struct vm_area_struct *vma) { struct anon_vma *anon_vma = vma->anon_vma; + page = compound_head(page); + VM_BUG_ON_PAGE(!PageLocked(page), page); VM_BUG_ON_VMA(!anon_vma, vma); - if (IS_ENABLED(CONFIG_DEBUG_VM) && PageTransHuge(page)) - address &= HPAGE_PMD_MASK; - VM_BUG_ON_PAGE(page->index != linear_page_index(vma, address), page); anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON; /* @@ -1427,7 +1424,8 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma, goto out; } - pte = page_check_address(page, mm, address, &ptl, 0); + pte = page_check_address(page, mm, address, &ptl, + PageTransCompound(page)); if (!pte) goto out; |