1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 * Copyright 2024 Oxide Computer Company
25 */
26
27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * Portions of this source code were derived from Berkeley 4.3 BSD
32 * under license from the Regents of the University of California.
33 */
34
35 #include <sys/types.h>
36 #include <sys/cred.h>
37 #include <sys/systm.h>
38 #include <sys/errno.h>
39 #include <sys/vnode.h>
40 #include <sys/vfs.h>
41 #include <sys/file.h>
42 #include <sys/fdsync.h>
43
44 /*
45 * This is the common system call for fsync(), fdatasync(), and syncfs(). It
46 * performs the requested I/O synchronization for the file descriptor.
47 */
48 int
fdsync(int fd,uint32_t arg)49 fdsync(int fd, uint32_t arg)
50 {
51 file_t *fp;
52 int ret;
53
54 if ((fp = getf(fd)) == NULL) {
55 return (set_errno(EBADF));
56 }
57
58 switch (arg) {
59 case FDSYNC_FS:
60 ret = VFS_SYNCFS(fp->f_vnode->v_vfsp, 0, fp->f_cred);
61 break;
62 case FDSYNC_FILE:
63 ret = VOP_FSYNC(fp->f_vnode, FSYNC, fp->f_cred, NULL);
64 break;
65 case FDSYNC_DATA:
66 ret = VOP_FSYNC(fp->f_vnode, FDSYNC, fp->f_cred, NULL);
67 break;
68 default:
69 ret = EINVAL;
70 break;
71 }
72
73 releasef(fd);
74 if (ret != 0) {
75 (void) set_errno(ret);
76 }
77
78 return (ret);
79 }
80