Release 4.11 fs/dlm/lock.h

/******************************************************************************
*******************************************************************************
**
**  Copyright (C) 2005-2007 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.
**
*******************************************************************************
******************************************************************************/

#ifndef __LOCK_DOT_H__

#define __LOCK_DOT_H__

void dlm_dump_rsb(struct dlm_rsb *r);
void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len);
void dlm_print_lkb(struct dlm_lkb *lkb);
void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
			       uint32_t saved_seq);
void dlm_receive_buffer(union dlm_packet *p, int nodeid);
int dlm_modes_compat(int mode1, int mode2);
void dlm_put_rsb(struct dlm_rsb *r);
void dlm_hold_rsb(struct dlm_rsb *r);
int dlm_put_lkb(struct dlm_lkb *lkb);
void dlm_scan_rsbs(struct dlm_ls *ls);
int dlm_lock_recovery_try(struct dlm_ls *ls);
void dlm_unlock_recovery(struct dlm_ls *ls);
void dlm_scan_waiters(struct dlm_ls *ls);
void dlm_scan_timeout(struct dlm_ls *ls);
void dlm_adjust_timeouts(struct dlm_ls *ls);
int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len,
		      unsigned int flags, int *r_nodeid, int *result);

int dlm_search_rsb_tree(struct rb_root *tree, char *name, int len,
			struct dlm_rsb **r_ret);

void dlm_recover_purge(struct dlm_ls *ls);
void dlm_purge_mstcpy_locks(struct dlm_rsb *r);
void dlm_recover_grant(struct dlm_ls *ls);
int dlm_recover_waiters_post(struct dlm_ls *ls);
void dlm_recover_waiters_pre(struct dlm_ls *ls);
int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);

int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
	uint32_t flags, void *name, unsigned int namelen,
	unsigned long timeout_cs);
int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
	int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
	unsigned long timeout_cs);
int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
	int mode, uint32_t flags, void *name, unsigned int namelen,
	unsigned long timeout_cs, uint32_t *lkid);
int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
	uint32_t flags, uint32_t lkid, char *lvb_in);
int dlm_user_cancel(struct dlm_ls *ls,  struct dlm_user_args *ua_tmp,
	uint32_t flags, uint32_t lkid);
int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc,
	int nodeid, int pid);
int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid);
void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc);



static inline int is_master(struct dlm_rsb *r)
{
	return !r->res_nodeid;
}

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static inline void lock_rsb(struct dlm_rsb *r)
{
	mutex_lock(&r->res_mutex);
}

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static inline void unlock_rsb(struct dlm_rsb *r)
{
	mutex_unlock(&r->res_mutex);
}

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#endif

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Directory: fs/dlm

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