Revision 0ddd204a102bed6294b531f5b48107275e484e10 authored by John Baldwin on 25 January 2010, 18:15:10 UTC, committed by John Baldwin on 25 January 2010, 18:15:10 UTC
Implement a mechanism within vm_phys_alloc_contig() to defer all necessary
calls to vdrop() until after the free page queues lock is released.  This
eliminates repeatedly releasing and reacquiring the free page queues lock
each time the last cached page is reclaimed from a vnode-backed object.

Approved by:	re (kib)
1 parent ac7ff8a
Raw File
proc.h
/*-
 * Copyright (C) 2005 Max Okumoto.
 *	All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#ifndef proc_h_458845848
#define proc_h_458845848

/**
 * Information used to create a new process.
 */
typedef struct ProcStuff {
	int	in;	/* stdin for new process */
	int	out;	/* stdout for new process */
	int	err;	/* stderr for new process */

	int	merge_errors;	/* true if stderr is redirected to stdin */
	int	pgroup;		/* true if new process a process leader */
	int	searchpath;	/* true if binary should be found via $PATH */

	char	**argv;
	int	argv_free;	/* release argv after use */
	int	errCheck;

	pid_t	child_pid;
} ProcStuff;

void Proc_Exec(const ProcStuff *) __dead2;

#endif /* proc_h_458845848 */
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