fs/ntfs3: Keep preallocated only if option prealloc enabled

commit e95113ed4d428219e3395044e29f5713fc446720 upstream.

If size of file was reduced, we still kept allocated blocks.
This commit makes ntfs3 work as other fs like btrfs.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=214719
Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation")
Reported-by: Ganapathi Kamath <hgkamath@hotmail.com>
Tested-by: Ganapathi Kamath <hgkamath@hotmail.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 35ed601aef81ed5a73ec2c199648a2ec69b75fa5..d7128be64cd6116db94b93a9cdbdea3c2a8e359e 100644 (file)
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -494,7 +494,7 @@ static int ntfs_truncate(struct inode *inode, loff_t new_size)
 
        down_write(&ni->file.run_lock);
        err = attr_set_size(ni, ATTR_DATA, NULL, 0, &ni->file.run, new_size,
-                           &new_valid, true, NULL);
+                           &new_valid, ni->mi.sbi->options->prealloc, NULL);
        up_write(&ni->file.run_lock);
 
        if (new_valid < ni->i_valid)