[GFS2] Use void * instead of typedef for locking module interface
As requested by Jan Engelhardt, this removes the typedefs in the
locking module interface and replaces them with void *. Also
since we are changing the interface, I've added a few consts
as well.
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/lm_interface.h b/fs/gfs2/lm_interface.h
index 148136a..1418fdc 100644
--- a/fs/gfs2/lm_interface.h
+++ b/fs/gfs2/lm_interface.h
@@ -10,16 +10,8 @@
#ifndef __LM_INTERFACE_DOT_H__
#define __LM_INTERFACE_DOT_H__
-/*
- * Opaque handles represent the lock module's lockspace structure, the lock
- * module's lock structures, and GFS's file system (superblock) structure.
- */
-typedef void lm_lockspace_t;
-typedef void lm_lock_t;
-struct gfs2_sbd;
-
-typedef void (*lm_callback_t) (struct gfs2_sbd *sdp, unsigned int type, void *data);
+typedef void (*lm_callback_t) (void *ptr, unsigned int type, void *data);
/*
* lm_mount() flags
@@ -175,64 +167,60 @@
struct lm_lockstruct;
struct lm_lockops {
- char lm_proto_name[256];
+ const char *lm_proto_name;
/*
* Mount/Unmount
*/
int (*lm_mount) (char *table_name, char *host_data,
- lm_callback_t cb, struct gfs2_sbd *sdp,
+ lm_callback_t cb, void *cb_data,
unsigned int min_lvb_size, int flags,
struct lm_lockstruct *lockstruct,
struct kobject *fskobj);
- void (*lm_others_may_mount) (lm_lockspace_t *lockspace);
+ void (*lm_others_may_mount) (void *lockspace);
- void (*lm_unmount) (lm_lockspace_t *lockspace);
+ void (*lm_unmount) (void *lockspace);
- void (*lm_withdraw) (lm_lockspace_t *lockspace);
+ void (*lm_withdraw) (void *lockspace);
/*
* Lock oriented operations
*/
- int (*lm_get_lock) (lm_lockspace_t *lockspace,
- struct lm_lockname *name, lm_lock_t **lockp);
+ int (*lm_get_lock) (void *lockspace, struct lm_lockname *name, void **lockp);
- void (*lm_put_lock) (lm_lock_t *lock);
+ void (*lm_put_lock) (void *lock);
- unsigned int (*lm_lock) (lm_lock_t *lock, unsigned int cur_state,
+ unsigned int (*lm_lock) (void *lock, unsigned int cur_state,
unsigned int req_state, unsigned int flags);
- unsigned int (*lm_unlock) (lm_lock_t *lock, unsigned int cur_state);
+ unsigned int (*lm_unlock) (void *lock, unsigned int cur_state);
- void (*lm_cancel) (lm_lock_t *lock);
+ void (*lm_cancel) (void *lock);
- int (*lm_hold_lvb) (lm_lock_t *lock, char **lvbp);
- void (*lm_unhold_lvb) (lm_lock_t *lock, char *lvb);
+ int (*lm_hold_lvb) (void *lock, char **lvbp);
+ void (*lm_unhold_lvb) (void *lock, char *lvb);
/*
* Posix Lock oriented operations
*/
- int (*lm_plock_get) (lm_lockspace_t *lockspace,
- struct lm_lockname *name,
+ int (*lm_plock_get) (void *lockspace, struct lm_lockname *name,
struct file *file, struct file_lock *fl);
- int (*lm_plock) (lm_lockspace_t *lockspace,
- struct lm_lockname *name,
+ int (*lm_plock) (void *lockspace, struct lm_lockname *name,
struct file *file, int cmd, struct file_lock *fl);
- int (*lm_punlock) (lm_lockspace_t *lockspace,
- struct lm_lockname *name,
+ int (*lm_punlock) (void *lockspace, struct lm_lockname *name,
struct file *file, struct file_lock *fl);
/*
* Client oriented operations
*/
- void (*lm_recovery_done) (lm_lockspace_t *lockspace, unsigned int jid,
+ void (*lm_recovery_done) (void *lockspace, unsigned int jid,
unsigned int message);
struct module *lm_owner;
@@ -253,8 +241,8 @@
unsigned int ls_jid;
unsigned int ls_first;
unsigned int ls_lvb_size;
- lm_lockspace_t *ls_lockspace;
- struct lm_lockops *ls_ops;
+ void *ls_lockspace;
+ const struct lm_lockops *ls_ops;
int ls_flags;
};
@@ -263,9 +251,8 @@
* with these functions.
*/
-int gfs2_register_lockproto(struct lm_lockops *proto);
-
-void gfs2_unregister_lockproto(struct lm_lockops *proto);
+int gfs2_register_lockproto(const struct lm_lockops *proto);
+void gfs2_unregister_lockproto(const struct lm_lockops *proto);
/*
* Lock module top interface. GFS calls these functions when mounting or
@@ -273,7 +260,7 @@
*/
int gfs2_mount_lockproto(char *proto_name, char *table_name, char *host_data,
- lm_callback_t cb, struct gfs2_sbd *sdp,
+ lm_callback_t cb, void *cb_data,
unsigned int min_lvb_size, int flags,
struct lm_lockstruct *lockstruct,
struct kobject *fskobj);