| bio.h (46566) | bio.h (46580) |
|---|---|
| 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 * $Id: buf.h,v 1.66 1999/05/02 23:56:34 alc Exp $ | 39 * $Id: buf.h,v 1.67 1999/05/06 17:06:32 phk Exp $ |
| 40 */ 41 42#ifndef _SYS_BUF_H_ 43#define _SYS_BUF_H_ 44 45#include <sys/queue.h> 46 47struct buf; --- 44 unchanged lines hidden (view full) --- 92 * b_resid. Number of bytes remaining in I/O. After an I/O operation 93 * completes, b_resid is usually 0 indicating 100% success. 94 */ 95struct buf { 96 LIST_ENTRY(buf) b_hash; /* Hash chain. */ 97 TAILQ_ENTRY(buf) b_vnbufs; /* Buffer's associated vnode. */ 98 TAILQ_ENTRY(buf) b_freelist; /* Free list position if not active. */ 99 TAILQ_ENTRY(buf) b_act; /* Device driver queue when active. *new* */ | 40 */ 41 42#ifndef _SYS_BUF_H_ 43#define _SYS_BUF_H_ 44 45#include <sys/queue.h> 46 47struct buf; --- 44 unchanged lines hidden (view full) --- 92 * b_resid. Number of bytes remaining in I/O. After an I/O operation 93 * completes, b_resid is usually 0 indicating 100% success. 94 */ 95struct buf { 96 LIST_ENTRY(buf) b_hash; /* Hash chain. */ 97 TAILQ_ENTRY(buf) b_vnbufs; /* Buffer's associated vnode. */ 98 TAILQ_ENTRY(buf) b_freelist; /* Free list position if not active. */ 99 TAILQ_ENTRY(buf) b_act; /* Device driver queue when active. *new* */ |
| 100 struct proc *b_proc; /* Associated proc; NULL if kernel. */ | |
| 101 long b_flags; /* B_* flags. */ 102 unsigned short b_qindex; /* buffer queue index */ 103 unsigned char b_usecount; /* buffer use count */ 104 unsigned char b_xflags; /* extra flags */ 105 int b_error; /* Errno value. */ 106 long b_bufsize; /* Allocated buffer size. */ 107 long b_bcount; /* Valid bytes in buffer. */ 108 long b_resid; /* Remaining I/O. */ --- 12 unchanged lines hidden (view full) --- 121 int b_dirtyoff; /* Offset in buffer of dirty region. */ 122 int b_dirtyend; /* Offset of end of dirty region. */ 123 struct ucred *b_rcred; /* Read credentials reference. */ 124 struct ucred *b_wcred; /* Write credentials reference. */ 125 daddr_t b_pblkno; /* physical block number */ 126 void *b_saveaddr; /* Original b_addr for physio. */ 127 void *b_driver1; /* for private use by the driver */ 128 void *b_driver2; /* for private use by the driver */ | 100 long b_flags; /* B_* flags. */ 101 unsigned short b_qindex; /* buffer queue index */ 102 unsigned char b_usecount; /* buffer use count */ 103 unsigned char b_xflags; /* extra flags */ 104 int b_error; /* Errno value. */ 105 long b_bufsize; /* Allocated buffer size. */ 106 long b_bcount; /* Valid bytes in buffer. */ 107 long b_resid; /* Remaining I/O. */ --- 12 unchanged lines hidden (view full) --- 120 int b_dirtyoff; /* Offset in buffer of dirty region. */ 121 int b_dirtyend; /* Offset of end of dirty region. */ 122 struct ucred *b_rcred; /* Read credentials reference. */ 123 struct ucred *b_wcred; /* Write credentials reference. */ 124 daddr_t b_pblkno; /* physical block number */ 125 void *b_saveaddr; /* Original b_addr for physio. */ 126 void *b_driver1; /* for private use by the driver */ 127 void *b_driver2; /* for private use by the driver */ |
| 128 void *b_caller1; /* for private use by the driver */ 129 void *b_caller2; /* for private use by the driver */ |
|
| 129 union pager_info { 130 void *pg_spc; 131 int pg_reqpage; 132 } b_pager; 133 union cluster_info { 134 TAILQ_HEAD(cluster_list_head, buf) cluster_head; 135 TAILQ_ENTRY(buf) cluster_entry; 136 } b_cluster; --- 267 unchanged lines hidden --- | 130 union pager_info { 131 void *pg_spc; 132 int pg_reqpage; 133 } b_pager; 134 union cluster_info { 135 TAILQ_HEAD(cluster_list_head, buf) cluster_head; 136 TAILQ_ENTRY(buf) cluster_entry; 137 } b_cluster; --- 267 unchanged lines hidden --- |