| kern_descrip.c (108519) | kern_descrip.c (108520) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1989, 1991, 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 * @(#)kern_descrip.c 8.6 (Berkeley) 4/19/94 | 1/* 2 * Copyright (c) 1982, 1986, 1989, 1991, 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 * @(#)kern_descrip.c 8.6 (Berkeley) 4/19/94 |
| 39 * $FreeBSD: head/sys/kern/kern_descrip.c 108519 2003-01-01 00:35:46Z alfred $ | 39 * $FreeBSD: head/sys/kern/kern_descrip.c 108520 2003-01-01 01:01:14Z alfred $ |
| 40 */ 41 42#include "opt_compat.h" 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/syscallsubr.h> 47#include <sys/sysproto.h> --- 1149 unchanged lines hidden (view full) --- 1197 LIST_REMOVE(fp, f_list); 1198 nfiles--; 1199 sx_xunlock(&filelist_lock); 1200 crfree(fp->f_cred); 1201 uma_zfree(file_zone, fp); 1202} 1203 1204/* | 40 */ 41 42#include "opt_compat.h" 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/syscallsubr.h> 47#include <sys/sysproto.h> --- 1149 unchanged lines hidden (view full) --- 1197 LIST_REMOVE(fp, f_list); 1198 nfiles--; 1199 sx_xunlock(&filelist_lock); 1200 crfree(fp->f_cred); 1201 uma_zfree(file_zone, fp); 1202} 1203 1204/* |
| 1205 * Build a new filedesc structure. | 1205 * Build a new filedesc structure from another. 1206 * Copy the current, root, and jail root vnode references. |
| 1206 */ 1207struct filedesc * | 1207 */ 1208struct filedesc * |
| 1208fdinit(td) 1209 struct thread *td; | 1209fdinit(fdp) 1210 struct filedesc *fdp; |
| 1210{ 1211 register struct filedesc0 *newfdp; | 1211{ 1212 register struct filedesc0 *newfdp; |
| 1212 register struct filedesc *fdp = td->td_proc->p_fd; | |
| 1213 1214 MALLOC(newfdp, struct filedesc0 *, sizeof(struct filedesc0), 1215 M_FILEDESC, M_WAITOK | M_ZERO); 1216 mtx_init(&newfdp->fd_fd.fd_mtx, FILEDESC_LOCK_DESC, NULL, MTX_DEF); 1217 newfdp->fd_fd.fd_cdir = fdp->fd_cdir; 1218 if (newfdp->fd_fd.fd_cdir) 1219 VREF(newfdp->fd_fd.fd_cdir); 1220 newfdp->fd_fd.fd_rdir = fdp->fd_rdir; --- 12 unchanged lines hidden (view full) --- 1233 newfdp->fd_fd.fd_knlistsize = -1; 1234 return (&newfdp->fd_fd); 1235} 1236 1237/* 1238 * Share a filedesc structure. 1239 */ 1240struct filedesc * | 1213 1214 MALLOC(newfdp, struct filedesc0 *, sizeof(struct filedesc0), 1215 M_FILEDESC, M_WAITOK | M_ZERO); 1216 mtx_init(&newfdp->fd_fd.fd_mtx, FILEDESC_LOCK_DESC, NULL, MTX_DEF); 1217 newfdp->fd_fd.fd_cdir = fdp->fd_cdir; 1218 if (newfdp->fd_fd.fd_cdir) 1219 VREF(newfdp->fd_fd.fd_cdir); 1220 newfdp->fd_fd.fd_rdir = fdp->fd_rdir; --- 12 unchanged lines hidden (view full) --- 1233 newfdp->fd_fd.fd_knlistsize = -1; 1234 return (&newfdp->fd_fd); 1235} 1236 1237/* 1238 * Share a filedesc structure. 1239 */ 1240struct filedesc * |
| 1241fdshare(p) 1242 struct proc *p; | 1241fdshare(fdp) 1242 struct filedesc *fdp; |
| 1243{ | 1243{ |
| 1244 FILEDESC_LOCK(p->p_fd); 1245 p->p_fd->fd_refcnt++; 1246 FILEDESC_UNLOCK(p->p_fd); 1247 return (p->p_fd); | 1244 FILEDESC_LOCK(fdp); 1245 fdp->fd_refcnt++; 1246 FILEDESC_UNLOCK(fdp); 1247 return (fdp); |
| 1248} 1249 1250/* 1251 * Copy a filedesc structure. 1252 */ 1253struct filedesc * 1254fdcopy(td) 1255 struct thread *td; --- 1006 unchanged lines hidden --- | 1248} 1249 1250/* 1251 * Copy a filedesc structure. 1252 */ 1253struct filedesc * 1254fdcopy(td) 1255 struct thread *td; --- 1006 unchanged lines hidden --- |