diff options
Diffstat (limited to 'sys/fs/procfs/procfs_vfsops.c')
| -rw-r--r-- | sys/fs/procfs/procfs_vfsops.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/sys/fs/procfs/procfs_vfsops.c b/sys/fs/procfs/procfs_vfsops.c deleted file mode 100644 index 2442022..0000000 --- a/sys/fs/procfs/procfs_vfsops.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * Copyright (c) 1993 Jan-Simon Pendry - * Copyright (c) 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Jan-Simon Pendry. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)procfs_vfsops.c 8.7 (Berkeley) 5/10/95 - * - * $FreeBSD$ - */ - -/* - * procfs VFS interface - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/proc.h> -#include <sys/mount.h> -#include <sys/vnode.h> -#include <fs/procfs/procfs.h> - -static int procfs_mount __P((struct mount *mp, char *path, caddr_t data, - struct nameidata *ndp, struct thread *td)); -static int procfs_statfs __P((struct mount *mp, struct statfs *sbp, - struct thread *td)); -static int procfs_unmount __P((struct mount *mp, int mntflags, - struct thread *td)); - -/* - * VFS Operations. - * - * mount system call - */ -/* ARGSUSED */ -static int -procfs_mount(mp, path, data, ndp, td) - struct mount *mp; - char *path; - caddr_t data; - struct nameidata *ndp; - struct thread *td; -{ - size_t size; - int error; - - if (mp->mnt_flag & MNT_UPDATE) - return (EOPNOTSUPP); - - if (mp->mnt_vfc->vfc_refcount == 1 && (error = at_exit(procfs_exit))) { - printf("procfs: cannot register procfs_exit with at_exit\n"); - return(error); - } - - mp->mnt_flag |= MNT_LOCAL; - mp->mnt_data = 0; - vfs_getnewfsid(mp); - - size = sizeof("procfs") - 1; - bcopy("procfs", mp->mnt_stat.f_mntfromname, size); - bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); - (void)procfs_statfs(mp, &mp->mnt_stat, td); - - return (0); -} - -/* - * unmount system call - */ -static int -procfs_unmount(mp, mntflags, td) - struct mount *mp; - int mntflags; - struct thread *td; -{ - int error; - int flags = 0; - - if (mntflags & MNT_FORCE) - flags |= FORCECLOSE; - - error = vflush(mp, 0, flags); - if (error) - return (error); - - if (mp->mnt_vfc->vfc_refcount == 1) - rm_at_exit(procfs_exit); - - return (0); -} - -int -procfs_root(mp, vpp) - struct mount *mp; - struct vnode **vpp; -{ - - return (procfs_allocvp(mp, vpp, 0, Proot)); -} - -/* - * Get file system statistics. - */ -static int -procfs_statfs(mp, sbp, td) - struct mount *mp; - struct statfs *sbp; - struct thread *td; -{ - sbp->f_bsize = PAGE_SIZE; - sbp->f_iosize = PAGE_SIZE; - sbp->f_blocks = 1; /* avoid divide by zero in some df's */ - sbp->f_bfree = 0; - sbp->f_bavail = 0; - sbp->f_files = maxproc; /* approx */ - sbp->f_ffree = maxproc - nprocs; /* approx */ - - if (sbp != &mp->mnt_stat) { - sbp->f_type = mp->mnt_vfc->vfc_typenum; - bcopy(&mp->mnt_stat.f_fsid, &sbp->f_fsid, sizeof(sbp->f_fsid)); - bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN); - bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN); - } - - return (0); -} - -static struct vfsops procfs_vfsops = { - procfs_mount, - vfs_stdstart, - procfs_unmount, - procfs_root, - vfs_stdquotactl, - procfs_statfs, - vfs_stdsync, - vfs_stdvget, - vfs_stdfhtovp, - vfs_stdcheckexp, - vfs_stdvptofh, - vfs_stdinit, - vfs_stduninit, - vfs_stdextattrctl, -}; - -VFS_SET(procfs_vfsops, procfs, VFCF_SYNTHETIC); -MODULE_VERSION(procfs, 1); |
