f2fs: use mnt_want_write_file() in ioctl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 958a46d..db62628 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -590,7 +590,7 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
        {
                unsigned int oldflags;
 
-               ret = mnt_want_write(filp->f_path.mnt);
+               ret = mnt_want_write_file(filp);
                if (ret)
                        return ret;
 
@@ -627,7 +627,7 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                inode->i_ctime = CURRENT_TIME;
                mark_inode_dirty(inode);
 out:
-               mnt_drop_write(filp->f_path.mnt);
+               mnt_drop_write_file(filp);
                return ret;
        }
        default: