smbfs: move to drivers/staging

smbfs has been scheduled for removal in 2.6.27, so
maybe we can now move it to drivers/staging on the
way out.

smbfs still uses the big kernel lock and nobody
is going to fix that, so we should be getting
rid of it soon.

This removes the 32 bit compat mount and ioctl
handling code, which is implemented in common fs
code, and moves all smbfs related files into
drivers/staging/smbfs.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 100 insertions, 0 deletions

diff --git a/drivers/staging/smbfs/smb_fs_sb.h b/drivers/staging/smbfs/smb_fs_sb.h
new file mode 100644
index 000000000000..ca058afda900
--- /dev/null
+++ b/drivers/staging/smbfs/smb_fs_sb.h
@@ -0,0 +1,100 @@
+/*
+ *  smb_fs_sb.h
+ *
+ *  Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ */
+
+#ifndef _SMB_FS_SB
+#define _SMB_FS_SB
+
+#include <linux/types.h>
+#include <linux/backing-dev.h>
+#include "smb.h"
+
+/*
+ * Upper limit on the total number of active smb_request structs.
+ */
+#define MAX_REQUEST_HARD       256
+
+enum smb_receive_state {
+	SMB_RECV_START,		/* No data read, looking for length + sig */
+	SMB_RECV_HEADER,	/* Reading the header data */
+	SMB_RECV_HCOMPLETE,	/* Done with the header */
+	SMB_RECV_PARAM,		/* Reading parameter words */
+	SMB_RECV_DATA,		/* Reading data bytes */
+	SMB_RECV_END,		/* End of request */
+	SMB_RECV_DROP,		/* Dropping this SMB */
+	SMB_RECV_REQUEST,	/* Received a request and not a reply */
+};
+
+/* structure access macros */
+#define server_from_inode(inode) SMB_SB((inode)->i_sb)
+#define server_from_dentry(dentry) SMB_SB((dentry)->d_sb)
+#define SB_of(server) ((server)->super_block)
+
+struct smb_sb_info {
+	/* List of all smbfs superblocks */
+	struct list_head entry;
+
+        enum smb_conn_state state;
+	struct file * sock_file;
+	int conn_error;
+	enum smb_receive_state rstate;
+
+	atomic_t nr_requests;
+	struct list_head xmitq;
+	struct list_head recvq;
+	u16 mid;
+
+        struct smb_mount_data_kernel *mnt;
+
+	/* Connections are counted. Each time a new socket arrives,
+	 * generation is incremented.
+	 */
+	unsigned int generation;
+	struct pid *conn_pid;
+	struct smb_conn_opt opt;
+	wait_queue_head_t conn_wq;
+	int conn_complete;
+	struct semaphore sem;
+
+	unsigned char      header[SMB_HEADER_LEN + 20*2 + 2];
+	u32                header_len;
+	u32                smb_len;
+	u32                smb_read;
+
+        /* We use our own data_ready callback, but need the original one */
+        void *data_ready;
+
+	/* nls pointers for codepage conversions */
+	struct nls_table *remote_nls;
+	struct nls_table *local_nls;
+
+	struct smb_ops *ops;
+
+	struct super_block *super_block;
+
+	struct backing_dev_info bdi;
+};
+
+static inline int
+smb_lock_server_interruptible(struct smb_sb_info *server)
+{
+	return down_interruptible(&(server->sem));
+}
+
+static inline void
+smb_lock_server(struct smb_sb_info *server)
+{
+	down(&(server->sem));
+}
+
+static inline void
+smb_unlock_server(struct smb_sb_info *server)
+{
+	up(&(server->sem));
+}
+
+#endif