mm: remove __hugepage_set_anon_rmap()
This function is identical to __page_set_anon_rmap() since the time, when
it was introduced (8 years ago). The patch removes the function, and
makes its users to use __page_set_anon_rmap() instead.
Link: http://lkml.kernel.org/r/154504875359.30235.6237926369392564851.stgit@localhost.localdomain
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/rmap.c b/mm/rmap.c
index c75f72f..68a1a5b 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1019,7 +1019,7 @@ void page_move_anon_rmap(struct page *page, struct vm_area_struct *vma)
/**
* __page_set_anon_rmap - set up new anonymous rmap
- * @page: Page to add to rmap
+ * @page: Page or Hugepage to add to rmap
* @vma: VM area to add page to.
* @address: User virtual address of the mapping
* @exclusive: the page is exclusively owned by the current process
@@ -1916,27 +1916,10 @@ void rmap_walk_locked(struct page *page, struct rmap_walk_control *rwc)
#ifdef CONFIG_HUGETLB_PAGE
/*
- * The following three functions are for anonymous (private mapped) hugepages.
+ * The following two functions are for anonymous (private mapped) hugepages.
* Unlike common anonymous pages, anonymous hugepages have no accounting code
* and no lru code, because we handle hugepages differently from common pages.
*/
-static void __hugepage_set_anon_rmap(struct page *page,
- struct vm_area_struct *vma, unsigned long address, int exclusive)
-{
- struct anon_vma *anon_vma = vma->anon_vma;
-
- BUG_ON(!anon_vma);
-
- if (PageAnon(page))
- return;
- if (!exclusive)
- anon_vma = anon_vma->root;
-
- anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
- page->mapping = (struct address_space *) anon_vma;
- page->index = linear_page_index(vma, address);
-}
-
void hugepage_add_anon_rmap(struct page *page,
struct vm_area_struct *vma, unsigned long address)
{
@@ -1948,7 +1931,7 @@ void hugepage_add_anon_rmap(struct page *page,
/* address might be in next vma when migration races vma_adjust */
first = atomic_inc_and_test(compound_mapcount_ptr(page));
if (first)
- __hugepage_set_anon_rmap(page, vma, address, 0);
+ __page_set_anon_rmap(page, vma, address, 0);
}
void hugepage_add_new_anon_rmap(struct page *page,
@@ -1956,6 +1939,6 @@ void hugepage_add_new_anon_rmap(struct page *page,
{
BUG_ON(address < vma->vm_start || address >= vma->vm_end);
atomic_set(compound_mapcount_ptr(page), 0);
- __hugepage_set_anon_rmap(page, vma, address, 1);
+ __page_set_anon_rmap(page, vma, address, 1);
}
#endif /* CONFIG_HUGETLB_PAGE */
