1 files changed, 0 insertions, 292 deletions
diff --git a/ANDROID_3.4.5/fs/ocfs2/stackglue.h b/ANDROID_3.4.5/fs/ocfs2/stackglue.h
deleted file mode 100644
index 1ec56fdb..00000000
--- a/ANDROID_3.4.5/fs/ocfs2/stackglue.h
+++ /dev/null
@@ -1,292 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * stackglue.h
- *
- * Glue to the underlying cluster stack.
- *
- * Copyright (C) 2007 Oracle.  All rights reserved.
- *
- * 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, version 2.
- *
- * 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.
- */
-
-
-#ifndef STACKGLUE_H
-#define STACKGLUE_H
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/dlmconstants.h>
-
-#include "dlm/dlmapi.h"
-#include <linux/dlm.h>
-
-/* Needed for plock-related prototypes */
-struct file;
-struct file_lock;
-
-/*
- * dlmconstants.h does not have a LOCAL flag.  We hope to remove it
- * some day, but right now we need it.  Let's fake it.  This value is larger
- * than any flag in dlmconstants.h.
- */
-#define DLM_LKF_LOCAL		0x00100000
-
-/*
- * This shadows DLM_LOCKSPACE_LEN in fs/dlm/dlm_internal.h.  That probably
- * wants to be in a public header.
- */
-#define GROUP_NAME_MAX		64
-
-
-/*
- * ocfs2_protocol_version changes when ocfs2 does something different in
- * its inter-node behavior.  See dlmglue.c for more information.
- */
-struct ocfs2_protocol_version {
-	u8 pv_major;
-	u8 pv_minor;
-};
-
-/*
- * The dlm_lockstatus struct includes lvb space, but the dlm_lksb struct only
- * has a pointer to separately allocated lvb space.  This struct exists only to
- * include in the lksb union to make space for a combined dlm_lksb and lvb.
- */
-struct fsdlm_lksb_plus_lvb {
-	struct dlm_lksb lksb;
-	char lvb[DLM_LVB_LEN];
-};
-
-/*
- * A union of all lock status structures.  We define it here so that the
- * size of the union is known.  Lock status structures are embedded in
- * ocfs2 inodes.
- */
-struct ocfs2_cluster_connection;
-struct ocfs2_dlm_lksb {
-	 union {
-		 struct dlm_lockstatus lksb_o2dlm;
-		 struct dlm_lksb lksb_fsdlm;
-		 struct fsdlm_lksb_plus_lvb padding;
-	 };
-	 struct ocfs2_cluster_connection *lksb_conn;
-};
-
-/*
- * The ocfs2_locking_protocol defines the handlers called on ocfs2's behalf.
- */
-struct ocfs2_locking_protocol {
-	struct ocfs2_protocol_version lp_max_version;
-	void (*lp_lock_ast)(struct ocfs2_dlm_lksb *lksb);
-	void (*lp_blocking_ast)(struct ocfs2_dlm_lksb *lksb, int level);
-	void (*lp_unlock_ast)(struct ocfs2_dlm_lksb *lksb, int error);
-};
-
-
-/*
- * A cluster connection.  Mostly opaque to ocfs2, the connection holds
- * state for the underlying stack.  ocfs2 does use cc_version to determine
- * locking compatibility.
- */
-struct ocfs2_cluster_connection {
-	char cc_name[GROUP_NAME_MAX];
-	int cc_namelen;
-	struct ocfs2_protocol_version cc_version;
-	struct ocfs2_locking_protocol *cc_proto;
-	void (*cc_recovery_handler)(int node_num, void *recovery_data);
-	void *cc_recovery_data;
-	void *cc_lockspace;
-	void *cc_private;
-};
-
-/*
- * Each cluster stack implements the stack operations structure.  Not used
- * in the ocfs2 code, the stackglue code translates generic cluster calls
- * into stack operations.
- */
-struct ocfs2_stack_operations {
-	/*
-	 * The fs code calls ocfs2_cluster_connect() to attach a new
-	 * filesystem to the cluster stack.  The ->connect() op is passed
-	 * an ocfs2_cluster_connection with the name and recovery field
-	 * filled in.
-	 *
-	 * The stack must set up any notification mechanisms and create
-	 * the filesystem lockspace in the DLM.  The lockspace should be
-	 * stored on cc_lockspace.  Any other information can be stored on
-	 * cc_private.
-	 *
-	 * ->connect() must not return until it is guaranteed that
-	 *
-	 *  - Node down notifications for the filesystem will be received
-	 *    and passed to conn->cc_recovery_handler().
-	 *  - Locking requests for the filesystem will be processed.
-	 */
-	int (*connect)(struct ocfs2_cluster_connection *conn);
-
-	/*
-	 * The fs code calls ocfs2_cluster_disconnect() when a filesystem
-	 * no longer needs cluster services.  All DLM locks have been
-	 * dropped, and recovery notification is being ignored by the
-	 * fs code.  The stack must disengage from the DLM and discontinue
-	 * recovery notification.
-	 *
-	 * Once ->disconnect() has returned, the connection structure will
-	 * be freed.  Thus, a stack must not return from ->disconnect()
-	 * until it will no longer reference the conn pointer.
-	 *
-	 * Once this call returns, the stack glue will be dropping this
-	 * connection's reference on the module.
-	 */
-	int (*disconnect)(struct ocfs2_cluster_connection *conn);
-
-	/*
-	 * ->this_node() returns the cluster's unique identifier for the
-	 * local node.
-	 */
-	int (*this_node)(unsigned int *node);
-
-	/*
-	 * Call the underlying dlm lock function.  The ->dlm_lock()
-	 * callback should convert the flags and mode as appropriate.
-	 *
-	 * ast and bast functions are not part of the call because the
-	 * stack will likely want to wrap ast and bast calls before passing
-	 * them to stack->sp_proto.  There is no astarg.  The lksb will
-	 * be passed back to the ast and bast functions.  The caller can
-	 * use this to find their object.
-	 */
-	int (*dlm_lock)(struct ocfs2_cluster_connection *conn,
-			int mode,
-			struct ocfs2_dlm_lksb *lksb,
-			u32 flags,
-			void *name,
-			unsigned int namelen);
-
-	/*
-	 * Call the underlying dlm unlock function.  The ->dlm_unlock()
-	 * function should convert the flags as appropriate.
-	 *
-	 * The unlock ast is not passed, as the stack will want to wrap
-	 * it before calling stack->sp_proto->lp_unlock_ast().  There is
-	 * no astarg.  The lksb will be passed back to the unlock ast
-	 * function.  The caller can use this to find their object.
-	 */
-	int (*dlm_unlock)(struct ocfs2_cluster_connection *conn,
-			  struct ocfs2_dlm_lksb *lksb,
-			  u32 flags);
-
-	/*
-	 * Return the status of the current lock status block.  The fs
-	 * code should never dereference the union.  The ->lock_status()
-	 * callback pulls out the stack-specific lksb, converts the status
-	 * to a proper errno, and returns it.
-	 */
-	int (*lock_status)(struct ocfs2_dlm_lksb *lksb);
-
-	/*
-	 * Return non-zero if the LVB is valid.
-	 */
-	int (*lvb_valid)(struct ocfs2_dlm_lksb *lksb);
-
-	/*
-	 * Pull the lvb pointer off of the stack-specific lksb.
-	 */
-	void *(*lock_lvb)(struct ocfs2_dlm_lksb *lksb);
-
-	/*
-	 * Cluster-aware posix locks
-	 *
-	 * This is NULL for stacks which do not support posix locks.
-	 */
-	int (*plock)(struct ocfs2_cluster_connection *conn,
-		     u64 ino,
-		     struct file *file,
-		     int cmd,
-		     struct file_lock *fl);
-
-	/*
-	 * This is an optoinal debugging hook.  If provided, the
-	 * stack can dump debugging information about this lock.
-	 */
-	void (*dump_lksb)(struct ocfs2_dlm_lksb *lksb);
-};
-
-/*
- * Each stack plugin must describe itself by registering a
- * ocfs2_stack_plugin structure.  This is only seen by stackglue and the
- * stack driver.
- */
-struct ocfs2_stack_plugin {
-	char *sp_name;
-	struct ocfs2_stack_operations *sp_ops;
-	struct module *sp_owner;
-
-	/* These are managed by the stackglue code. */
-	struct list_head sp_list;
-	unsigned int sp_count;
-	struct ocfs2_protocol_version sp_max_proto;
-};
-
-
-/* Used by the filesystem */
-int ocfs2_cluster_connect(const char *stack_name,
-			  const char *group,
-			  int grouplen,
-			  struct ocfs2_locking_protocol *lproto,
-			  void (*recovery_handler)(int node_num,
-						   void *recovery_data),
-			  void *recovery_data,
-			  struct ocfs2_cluster_connection **conn);
-/*
- * Used by callers that don't store their stack name.  They must ensure
- * all nodes have the same stack.
- */
-int ocfs2_cluster_connect_agnostic(const char *group,
-				   int grouplen,
-				   struct ocfs2_locking_protocol *lproto,
-				   void (*recovery_handler)(int node_num,
-							    void *recovery_data),
-				   void *recovery_data,
-				   struct ocfs2_cluster_connection **conn);
-int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
-			     int hangup_pending);
-void ocfs2_cluster_hangup(const char *group, int grouplen);
-int ocfs2_cluster_this_node(unsigned int *node);
-
-struct ocfs2_lock_res;
-int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
-		   int mode,
-		   struct ocfs2_dlm_lksb *lksb,
-		   u32 flags,
-		   void *name,
-		   unsigned int namelen);
-int ocfs2_dlm_unlock(struct ocfs2_cluster_connection *conn,
-		     struct ocfs2_dlm_lksb *lksb,
-		     u32 flags);
-
-int ocfs2_dlm_lock_status(struct ocfs2_dlm_lksb *lksb);
-int ocfs2_dlm_lvb_valid(struct ocfs2_dlm_lksb *lksb);
-void *ocfs2_dlm_lvb(struct ocfs2_dlm_lksb *lksb);
-void ocfs2_dlm_dump_lksb(struct ocfs2_dlm_lksb *lksb);
-
-int ocfs2_stack_supports_plocks(void);
-int ocfs2_plock(struct ocfs2_cluster_connection *conn, u64 ino,
-		struct file *file, int cmd, struct file_lock *fl);
-
-void ocfs2_stack_glue_set_max_proto_version(struct ocfs2_protocol_version *max_proto);
-
-
-/* Used by stack plugins */
-int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin);
-void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);
-
-#endif  /* STACKGLUE_H */