[patch 06/14] Use page_cache_xxx in mm/rmap.c

[clameter@sgi.com]

[-- Attachment #1: vps_mm_rmap --]
[-- Type: text/plain, Size: 1925 bytes --]

Signed-off-by: Christoph Lameter <clameter@sgi.com>

---
 mm/rmap.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Index: linux-2.6.22-rc4-mm2/mm/rmap.c
===================================================================
--- linux-2.6.22-rc4-mm2.orig/mm/rmap.c	2007-06-14 10:35:45.000000000 -0700
+++ linux-2.6.22-rc4-mm2/mm/rmap.c	2007-06-14 10:49:29.000000000 -0700
@@ -210,9 +210,14 @@
 static inline unsigned long
 vma_address(struct page *page, struct vm_area_struct *vma)
 {
-	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	pgoff_t pgoff;
 	unsigned long address;
 
+	if (PageAnon(page))
+		pgoff = page->index;
+	else
+		pgoff = page->index << mapping_order(page->mapping);
+
 	address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
 	if (unlikely(address < vma->vm_start || address >= vma->vm_end)) {
 		/* page should be within any vma from prio_tree_next */
@@ -357,7 +362,7 @@
 {
 	unsigned int mapcount;
 	struct address_space *mapping = page->mapping;
-	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	pgoff_t pgoff = page->index << (page_cache_shift(mapping) - PAGE_SHIFT);
 	struct vm_area_struct *vma;
 	struct prio_tree_iter iter;
 	int referenced = 0;
@@ -469,7 +474,7 @@
 
 static int page_mkclean_file(struct address_space *mapping, struct page *page)
 {
-	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	pgoff_t pgoff = page->index << (page_cache_shift(mapping) - PAGE_SHIFT);
 	struct vm_area_struct *vma;
 	struct prio_tree_iter iter;
 	int ret = 0;
@@ -885,7 +890,7 @@
 static int try_to_unmap_file(struct page *page, int migration)
 {
 	struct address_space *mapping = page->mapping;
-	pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+	pgoff_t pgoff = page->index << (page_cache_shift(mapping) - PAGE_SHIFT);
 	struct vm_area_struct *vma;
 	struct prio_tree_iter iter;
 	int ret = SWAP_AGAIN;

--