kill struct opendata

Just pass struct file *.  Methods are happier that way...
There's no need to return struct file * from finish_open() now,
so let it return int.  Next: saner prototypes for parts in
namei.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index d8bfabe..80c848e 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -635,7 +635,7 @@
 }
 
 int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
-		     struct opendata *od, unsigned flags, umode_t mode,
+		     struct file *file, unsigned flags, umode_t mode,
 		     int *opened)
 {
 	int err;
@@ -649,7 +649,7 @@
 		if (err < 0)
 			return err;
 
-		return ceph_lookup_open(dir, dentry, od, flags, mode, opened);
+		return ceph_lookup_open(dir, dentry, file, flags, mode, opened);
 	}
 
 	if (d_unhashed(dentry)) {
@@ -663,12 +663,12 @@
 
 	/* We don't deal with positive dentries here */
 	if (dentry->d_inode) {
-		finish_no_open(od, res);
+		finish_no_open(file, res);
 		return 1;
 	}
 
 	*opened |= FILE_CREATED;
-	err = ceph_lookup_open(dir, dentry, od, flags, mode, opened);
+	err = ceph_lookup_open(dir, dentry, file, flags, mode, opened);
 	dput(res);
 
 	return err;
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index b8cc3ee..1b81d6c 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -214,12 +214,11 @@
  * ceph_release gets called).  So fear not!
  */
 int ceph_lookup_open(struct inode *dir, struct dentry *dentry,
-		     struct opendata *od, unsigned flags, umode_t mode,
+		     struct file *file, unsigned flags, umode_t mode,
 		     int *opened)
 {
 	struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
 	struct ceph_mds_client *mdsc = fsc->mdsc;
-	struct file *file = NULL;
 	struct ceph_mds_request *req;
 	struct dentry *ret;
 	int err;
@@ -248,9 +247,7 @@
 		err = ceph_handle_notrace_create(dir, dentry);
 	if (err)
 		goto out;
-	file = finish_open(od, req->r_dentry, ceph_open, opened);
-	if (IS_ERR(file))
-		err = PTR_ERR(file);
+	err = finish_open(file, req->r_dentry, ceph_open, opened);
 out:
 	ret = ceph_finish_lookup(req, dentry, err);
 	ceph_mdsc_put_request(req);
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index f7e8e82..f4d5522 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -807,7 +807,7 @@
 extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
 extern int ceph_open(struct inode *inode, struct file *file);
 extern int ceph_lookup_open(struct inode *dir, struct dentry *dentry,
-			     struct opendata *od, unsigned flags,
+			     struct file *od, unsigned flags,
 			     umode_t mode, int *opened);
 extern int ceph_release(struct inode *inode, struct file *filp);