[patch 12/19] Use page_cache_xxx in mm/fadvise.c

[Christoph Lameter <clameter@sgi.com>]

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Use page_cache_xxx in mm/fadvise.c

Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
 mm/fadvise.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Index: mm/mm/fadvise.c
===================================================================
--- mm.orig/mm/fadvise.c	2007-11-16 21:16:36.000000000 -0800
+++ mm/mm/fadvise.c	2007-11-28 14:11:06.164977155 -0800
@@ -79,8 +79,8 @@ asmlinkage long sys_fadvise64_64(int fd,
 		}
 
 		/* First and last PARTIAL page! */
-		start_index = offset >> PAGE_CACHE_SHIFT;
-		end_index = endbyte >> PAGE_CACHE_SHIFT;
+		start_index = page_cache_index(mapping, offset);
+		end_index = page_cache_index(mapping, endbyte);
 
 		/* Careful about overflow on the "+1" */
 		nrpages = end_index - start_index + 1;
@@ -100,8 +100,8 @@ asmlinkage long sys_fadvise64_64(int fd,
 			filemap_flush(mapping);
 
 		/* First and last FULL page! */
-		start_index = (offset+(PAGE_CACHE_SIZE-1)) >> PAGE_CACHE_SHIFT;
-		end_index = (endbyte >> PAGE_CACHE_SHIFT);
+		start_index = page_cache_next(mapping, offset);
+		end_index = page_cache_index(mapping, endbyte);
 
 		if (end_index >= start_index)
 			invalidate_mapping_pages(mapping, start_index,

--