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
config.h
/*-
 * Copyright (c) 1988, 1989, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1988, 1989 by Adam de Boor
 * Copyright (c) 1989 by Berkeley Softworks
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Adam de Boor.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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.
 *
 *	@(#)config.h	8.2 (Berkeley) 4/28/95
 * $FreeBSD$
 */

#ifndef config_h_efe0765e
#define	config_h_efe0765e

/*
 * DEFMAXJOBS
 *	This control the default concurrency. On no occasion will more
 *	than DEFMAXJOBS targets be created at once.
 */
#define	DEFMAXJOBS	1

/*
 * INCLUDES
 * LIBRARIES
 *	These control the handling of the .INCLUDES and .LIBS variables.
 *	If INCLUDES is defined, the .INCLUDES variable will be filled
 *	from the search paths of those suffixes which are marked by
 *	.INCLUDES dependency lines. Similarly for LIBRARIES and .LIBS
 *	See suff.c for more details.
 */
#define	INCLUDES
#define	LIBRARIES

/*
 * LIBSUFF
 *	Is the suffix used to denote libraries and is used by the Suff module
 *	to find the search path on which to seek any -l<xx> targets.
 *
 * RECHECK
 *	If defined, Make_Update will check a target for its current
 *	modification time after it has been re-made, setting it to the
 *	starting time of the make only if the target still doesn't exist.
 *	Unfortunately, under NFS the modification time often doesn't
 *	get updated in time, so a target will appear to not have been
 *	re-made, causing later targets to appear up-to-date. On systems
 *	that don't have this problem, you should defined this. Under
 *	NFS you probably should not, unless you aren't exporting jobs.
 */
#define	LIBSUFF	".a"
#define	RECHECK

/*
 * SYSVINCLUDE
 *	Recognize system V like include directives [include "filename"]
 * SYSVVARSUB
 *	Recognize system V like ${VAR:x=y} variable substitutions
 */
#define	SYSVINCLUDE
#define	SYSVVARSUB

/*
 * SUNSHCMD
 *	Recognize SunOS and Solaris:
 *		VAR :sh= CMD	# Assign VAR to the command substitution of CMD
 *		${VAR:sh}	# Return the command substitution of the value
 *				# of ${VAR}
 */
#define	SUNSHCMD

#if !defined(__svr4__) && !defined(__SVR4) && !defined(__ELF__)
# ifndef RANLIBMAG
#  define RANLIBMAG "__.SYMDEF"
# endif
#else
# ifndef RANLIBMAG
#  define RANLIBMAG "/"
# endif
#endif

#endif /* config_h_efe0765e */
back to top