| buf.h (52066) | buf.h (52452) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)buf.h 8.9 (Berkeley) 3/30/95 | 1/* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)buf.h 8.9 (Berkeley) 3/30/95 |
| 39 * $FreeBSD: head/sys/sys/buf.h 52066 1999-10-09 19:44:32Z phk $ | 39 * $FreeBSD: head/sys/sys/buf.h 52452 1999-10-24 03:27:28Z dillon $ |
| 40 */ 41 42#ifndef _SYS_BUF_H_ 43#define _SYS_BUF_H_ 44 45#include <sys/queue.h> 46#include <sys/lock.h> 47 --- 386 unchanged lines hidden (view full) --- 434} 435 436/* Flags to low-level allocation routines. */ 437#define B_CLRBUF 0x01 /* Request allocated buffer be cleared. */ 438#define B_SYNC 0x02 /* Do all allocations synchronously. */ 439 440#ifdef KERNEL 441extern int nbuf; /* The number of buffer headers */ | 40 */ 41 42#ifndef _SYS_BUF_H_ 43#define _SYS_BUF_H_ 44 45#include <sys/queue.h> 46#include <sys/lock.h> 47 --- 386 unchanged lines hidden (view full) --- 434} 435 436/* Flags to low-level allocation routines. */ 437#define B_CLRBUF 0x01 /* Request allocated buffer be cleared. */ 438#define B_SYNC 0x02 /* Do all allocations synchronously. */ 439 440#ifdef KERNEL 441extern int nbuf; /* The number of buffer headers */ |
| 442extern int buf_maxio; /* nominal maximum I/O for buffer */ |
|
| 442extern struct buf *buf; /* The buffer headers. */ 443extern char *buffers; /* The buffer contents. */ 444extern int bufpages; /* Number of memory pages in the buffer pool. */ 445extern struct buf *swbuf; /* Swap I/O buffer headers. */ 446extern int nswbuf; /* Number of swap I/O buffer headers. */ 447extern TAILQ_HEAD(swqueue, buf) bswlist; 448extern TAILQ_HEAD(bqueues, buf) bufqueues[BUFFER_QUEUES]; 449 --- 56 unchanged lines hidden --- | 443extern struct buf *buf; /* The buffer headers. */ 444extern char *buffers; /* The buffer contents. */ 445extern int bufpages; /* Number of memory pages in the buffer pool. */ 446extern struct buf *swbuf; /* Swap I/O buffer headers. */ 447extern int nswbuf; /* Number of swap I/O buffer headers. */ 448extern TAILQ_HEAD(swqueue, buf) bswlist; 449extern TAILQ_HEAD(bqueues, buf) bufqueues[BUFFER_QUEUES]; 450 --- 56 unchanged lines hidden --- |