1 /* $NetBSD: linux_fadvise64.c,v 1.1 2011/05/30 17:50:32 alnsn 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 1.1 2011/05/30 17:50:32 alnsn 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/malloc.h> 45 #include <sys/namei.h> 46 #include <sys/vnode.h> 47 #include <sys/tty.h> 48 #include <sys/socketvar.h> 49 #include <sys/conf.h> 50 #include <sys/pipe.h> 51 52 #include <machine/limits.h> 53 54 #include <sys/syscall.h> 55 #include <sys/syscallargs.h> 56 57 #include <compat/linux/common/linux_types.h> 58 #include <compat/linux/common/linux_machdep.h> 59 #include <compat/linux/common/linux_misc.h> 60 61 #include <compat/linux/linux_syscallargs.h> 62 63 64 int 65 linux_sys_fadvise64(struct lwp *l, 66 const struct linux_sys_fadvise64_args *uap, register_t *retval) 67 { 68 /* { 69 syscallarg(int) fd; 70 syscallarg(linux_off_t) offset; 71 syscallarg(size_t) len; 72 syscallarg(int) advice; 73 } */ 74 75 size_t len = SCARG(uap, len); 76 77 if (sizeof(len) == sizeof(linux_off_t) && len > SSIZE_MAX) 78 return (EINVAL); 79 80 return do_posix_fadvise(SCARG(uap, fd), 81 SCARG(uap, offset), len, linux_to_bsd_posix_fadv(SCARG(uap, advice))); 82 } 83