commit 35ebb934bd7fcc7ca991b155b7980c3c4ff9f1a5
author Chris Mason <chris.mason@oracle.com> Tue Oct 30 16:56:53 2007 -0400
committer Chris Mason <chris.mason@oracle.com> Thu Sep 25 11:03:57 2008 -0400
tree ce2980aac2b06a75b18b0c523aa0d859f09c8fad
parent 2ff3e9b61d02b03e3157f7d43ba20ee1452814de

Btrfs: Fix PAGE_CACHE_SHIFT shifts on 32 bit machines

Signed-off-by: Chris Mason <chris.mason@oracle.com>

fs/btrfs/file.c

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 843e920..abdd9ca 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -301,7 +301,8 @@
 			SetPageUptodate(p);
 			set_page_dirty(p);
 		}
-		last_end = pages[num_pages -1]->index << PAGE_CACHE_SHIFT;
+		last_end = (u64)(pages[num_pages -1]->index) <<
+				PAGE_CACHE_SHIFT;
 		last_end += PAGE_CACHE_SIZE - 1;
 		set_extent_delalloc(em_tree, start_pos, end_of_last_block,
 				 GFP_NOFS);