[PATCH] v9fs: debug and support routines
This part of the patch contains debug and other misc routines.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/9p/fid.h b/fs/9p/fid.h
new file mode 100644
index 0000000..7db478c
--- /dev/null
+++ b/fs/9p/fid.h
@@ -0,0 +1,57 @@
+/*
+ * V9FS FID Management
+ *
+ * Copyright (C) 2005 by Eric Van Hensbergen <ericvh@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to:
+ * Free Software Foundation
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA 02111-1301 USA
+ *
+ */
+
+#include <linux/list.h>
+
+#define FID_OP 0
+#define FID_WALK 1
+
+struct v9fs_fid {
+ struct list_head list; /* list of fids associated with a dentry */
+ struct list_head active; /* XXX - debug */
+
+ u32 fid;
+ unsigned char fidopen; /* set when fid is opened */
+ unsigned char fidcreate; /* set when fid was just created */
+ unsigned char fidclunked; /* set when fid has already been clunked */
+
+ struct v9fs_qid qid;
+ u32 iounit;
+
+ /* readdir stuff */
+ int rdir_fpos;
+ loff_t rdir_pos;
+ struct v9fs_fcall *rdir_fcall;
+
+ /* management stuff */
+ pid_t pid; /* thread associated with this fid */
+ uid_t uid; /* user associated with this fid */
+
+ /* private data */
+ struct file *filp; /* backpointer to File struct for open files */
+ struct v9fs_session_info *v9ses; /* session info for this FID */
+};
+
+struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry, int type);
+void v9fs_fid_destroy(struct v9fs_fid *fid);
+struct v9fs_fid *v9fs_fid_create(struct dentry *);