Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx> --- fs/overlayfs/file.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 3f610a5b38e4..e5e7ccaaf9ec 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -110,6 +110,9 @@ static int ovl_open(struct inode *inode, struct file *file) if (IS_ERR(realfile)) return PTR_ERR(realfile); + /* For O_DIRECT dentry_open() checks f_mapping->a_ops->direct_IO */ + file->f_mapping = realfile->f_mapping; + file->private_data = realfile; return 0; -- 2.14.3
