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authorChris Mason <chris.mason@oracle.com>2008-02-19 16:24:18 -0500
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:00 -0400
commit0740c82bc7585a23e100c9a59d5e2abbf99459fb (patch)
tree66d27b4009e1d74623fed610c0cade55767e159d /fs/btrfs
parentd99cb30a11ea117ad0f58cda09aa43438ebbf81c (diff)
Btrfs: Properly cast before shifting
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 51466dcd44e..5fa450452f9 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -764,7 +764,7 @@ static int prepare_pages(struct btrfs_root *root, struct file *file,
}
if (start_pos < inode->i_size) {
u64 last_pos;
- last_pos = (index + num_pages) << PAGE_CACHE_SHIFT;
+ last_pos = ((u64)index + num_pages) << PAGE_CACHE_SHIFT;
lock_extent(&BTRFS_I(inode)->io_tree,
start_pos, last_pos - 1, GFP_NOFS);
clear_extent_bits(&BTRFS_I(inode)->io_tree, start_pos,