xref: /netbsd-src/sys/compat/linux/common/linux_fadvise64.c (revision eda7c7bbe420d47af87753705799f9ed45f3aaf5)
1 /*	$NetBSD: linux_fadvise64.c,v 1.3 2014/11/09 17:48:08 maxv Exp $	*/
2 
3 /*-
4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: linux_fadvise64.c,v 1.3 2014/11/09 17:48:08 maxv Exp $");
31 
32 #include <sys/param.h>
33 #include <sys/types.h>
34 #include <sys/systm.h>
35 #include <sys/namei.h>
36 #include <sys/proc.h>
37 #include <sys/file.h>
38 #include <sys/fcntl.h>
39 #include <sys/stat.h>
40 #include <sys/filedesc.h>
41 #include <sys/ioctl.h>
42 #include <sys/kernel.h>
43 #include <sys/mount.h>
44 #include <sys/namei.h>
45 #include <sys/vnode.h>
46 #include <sys/tty.h>
47 #include <sys/socketvar.h>
48 #include <sys/conf.h>
49 #include <sys/pipe.h>
50 
51 #include <machine/limits.h>
52 
53 #include <sys/syscall.h>
54 #include <sys/syscallargs.h>
55 
56 #include <compat/linux/common/linux_types.h>
57 #include <compat/linux/common/linux_machdep.h>
58 #include <compat/linux/common/linux_misc.h>
59 
60 #include <compat/linux/linux_syscallargs.h>
61 
62 
63 int
linux_sys_fadvise64(struct lwp * l,const struct linux_sys_fadvise64_args * uap,register_t * retval)64 linux_sys_fadvise64(struct lwp *l,
65     const struct linux_sys_fadvise64_args *uap, register_t *retval)
66 {
67 	/* {
68 		syscallarg(int) fd;
69 		syscallarg(off_t) offset;
70 		syscallarg(size_t) len;
71 		syscallarg(int) advice;
72 	} */
73 
74 	return do_posix_fadvise(SCARG(uap, fd), SCARG(uap, offset),
75 	    SCARG(uap, len), linux_to_bsd_posix_fadv(SCARG(uap, advice)));
76 }
77