/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
+ * of the GNU General Public License version 2.
*/
#ifndef __GLOCK_DOT_H__
#define __GLOCK_DOT_H__
+#include "incore.h"
+
/* Flags for lock requests; used in gfs2_holder gh_flag field.
From lm_interface.h:
#define LM_FLAG_TRY 0x00000001
#define GL_SKIP 0x00000100
#define GL_ATIME 0x00000200
#define GL_NOCACHE 0x00000400
-#define GL_SYNC 0x00000800
#define GL_NOCANCEL 0x00001000
-#define GL_NEVER_RECURSE 0x00002000
+#define GL_AOP 0x00004000
+#define GL_DUMP 0x00008000
#define GLR_TRYFAILED 13
#define GLR_CANCELED 14
static inline int gfs2_glock_is_held_excl(struct gfs2_glock *gl)
{
- return (gl->gl_state == LM_ST_EXCLUSIVE);
+ return gl->gl_state == LM_ST_EXCLUSIVE;
}
static inline int gfs2_glock_is_held_dfrd(struct gfs2_glock *gl)
{
- return (gl->gl_state == LM_ST_DEFERRED);
+ return gl->gl_state == LM_ST_DEFERRED;
}
static inline int gfs2_glock_is_held_shrd(struct gfs2_glock *gl)
{
- return (gl->gl_state == LM_ST_SHARED);
+ return gl->gl_state == LM_ST_SHARED;
}
static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl)
return ret;
}
-struct gfs2_glock *gfs2_glock_find(struct gfs2_sbd *sdp,
- struct lm_lockname *name);
int gfs2_glock_get(struct gfs2_sbd *sdp,
- uint64_t number, struct gfs2_glock_operations *glops,
+ u64 number, const struct gfs2_glock_operations *glops,
int create, struct gfs2_glock **glp);
void gfs2_glock_hold(struct gfs2_glock *gl);
int gfs2_glock_put(struct gfs2_glock *gl);
-
-void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, int flags,
+void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags,
struct gfs2_holder *gh);
-void gfs2_holder_reinit(unsigned int state, int flags, struct gfs2_holder *gh);
+void gfs2_holder_reinit(unsigned int state, unsigned flags,
+ struct gfs2_holder *gh);
void gfs2_holder_uninit(struct gfs2_holder *gh);
-struct gfs2_holder *gfs2_holder_get(struct gfs2_glock *gl, unsigned int state,
- int flags, gfp_t gfp_flags);
-void gfs2_holder_put(struct gfs2_holder *gh);
void gfs2_glock_xmote_th(struct gfs2_glock *gl, unsigned int state, int flags);
void gfs2_glock_drop_th(struct gfs2_glock *gl);
-void gfs2_glmutex_lock(struct gfs2_glock *gl);
-int gfs2_glmutex_trylock(struct gfs2_glock *gl);
-void gfs2_glmutex_unlock(struct gfs2_glock *gl);
-
int gfs2_glock_nq(struct gfs2_holder *gh);
int gfs2_glock_poll(struct gfs2_holder *gh);
int gfs2_glock_wait(struct gfs2_holder *gh);
void gfs2_glock_dq(struct gfs2_holder *gh);
-void gfs2_glock_prefetch(struct gfs2_glock *gl, unsigned int state, int flags);
-void gfs2_glock_force_drop(struct gfs2_glock *gl);
-
int gfs2_glock_be_greedy(struct gfs2_glock *gl, unsigned int time);
-int gfs2_glock_nq_init(struct gfs2_glock *gl, unsigned int state, int flags,
- struct gfs2_holder *gh);
void gfs2_glock_dq_uninit(struct gfs2_holder *gh);
int gfs2_glock_nq_num(struct gfs2_sbd *sdp,
- uint64_t number, struct gfs2_glock_operations *glops,
+ u64 number, const struct gfs2_glock_operations *glops,
unsigned int state, int flags, struct gfs2_holder *gh);
int gfs2_glock_nq_m(unsigned int num_gh, struct gfs2_holder *ghs);
void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs);
void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs);
-void gfs2_glock_prefetch_num(struct gfs2_sbd *sdp, uint64_t number,
- struct gfs2_glock_operations *glops,
+void gfs2_glock_prefetch_num(struct gfs2_sbd *sdp, u64 number,
+ const struct gfs2_glock_operations *glops,
unsigned int state, int flags);
+void gfs2_glock_inode_squish(struct inode *inode);
+
+/**
+ * gfs2_glock_nq_init - intialize a holder and enqueue it on a glock
+ * @gl: the glock
+ * @state: the state we're requesting
+ * @flags: the modifier flags
+ * @gh: the holder structure
+ *
+ * Returns: 0, GLR_*, or errno
+ */
+
+static inline int gfs2_glock_nq_init(struct gfs2_glock *gl,
+ unsigned int state, int flags,
+ struct gfs2_holder *gh)
+{
+ int error;
+
+ gfs2_holder_init(gl, state, flags, gh);
+
+ error = gfs2_glock_nq(gh);
+ if (error)
+ gfs2_holder_uninit(gh);
+
+ return error;
+}
/* Lock Value Block functions */
int gfs2_lvb_hold(struct gfs2_glock *gl);
void gfs2_lvb_unhold(struct gfs2_glock *gl);
-void gfs2_lvb_sync(struct gfs2_glock *gl);
-
-void gfs2_glock_cb(lm_fsdata_t *fsdata, unsigned int type, void *data);
-void gfs2_try_toss_inode(struct gfs2_sbd *sdp, struct gfs2_inum *inum);
-void gfs2_iopen_go_callback(struct gfs2_glock *gl, unsigned int state);
+void gfs2_glock_cb(void *cb_data, unsigned int type, void *data);
void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl);
void gfs2_reclaim_glock(struct gfs2_sbd *sdp);
void gfs2_scand_internal(struct gfs2_sbd *sdp);
void gfs2_gl_hash_clear(struct gfs2_sbd *sdp, int wait);
-int gfs2_dump_lockstate(struct gfs2_sbd *sdp);
+int __init gfs2_glock_init(void);
#endif /* __GLOCK_DOT_H__ */
projects / powerpc.git / blobdiff