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-rw-r--r--fs/ntfs/file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index fb413d3d8618..3a119a87686a 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -248,7 +248,7 @@ do_non_resident_extend:
* enough to make ntfs_writepage() work.
*/
write_lock_irqsave(&ni->size_lock, flags);
- ni->initialized_size = (index + 1) << PAGE_CACHE_SHIFT;
+ ni->initialized_size = (s64)(index + 1) << PAGE_CACHE_SHIFT;
if (ni->initialized_size > new_init_size)
ni->initialized_size = new_init_size;
write_unlock_irqrestore(&ni->size_lock, flags);