zfs/include/spl/sys/wait.h

/*
 *  Copyright (C) 2007-2014 Lawrence Livermore National Security, LLC.
 *  Copyright (C) 2007 The Regents of the University of California.
 *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
 *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
 *  UCRL-CODE-235197
 *
 *  This file is part of the SPL, Solaris Porting Layer.
 *  For details, see <http://zfsonlinux.org/>.
 *
 *  The SPL 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; either version 2 of the License, or (at your
 *  option) any later version.
 *
 *  The SPL 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.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _SPL_WAIT_H
#define	_SPL_WAIT_H

#include <linux/sched.h>
#include <linux/wait.h>

#ifndef HAVE_WAIT_ON_BIT_ACTION
#define	spl_wait_on_bit(word, bit, mode)	wait_on_bit(word, bit, mode)
#else

static inline int
spl_bit_wait(void *word)
{
	schedule();
	return (0);
}

#define	spl_wait_on_bit(word, bit, mode)		\
	wait_on_bit(word, bit, spl_bit_wait, mode)

#endif /* HAVE_WAIT_ON_BIT_ACTION */

#ifdef HAVE_WAIT_QUEUE_ENTRY_T
typedef wait_queue_head_t	spl_wait_queue_head_t;
typedef wait_queue_entry_t	spl_wait_queue_entry_t;
#else
typedef wait_queue_head_t	spl_wait_queue_head_t;
typedef wait_queue_t		spl_wait_queue_entry_t;
#endif

#endif /* SPL_WAIT_H */