diff options
Diffstat (limited to 'sys/fs/coda/coda_fbsd.c')
| -rw-r--r-- | sys/fs/coda/coda_fbsd.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/sys/fs/coda/coda_fbsd.c b/sys/fs/coda/coda_fbsd.c deleted file mode 100644 index 62d0857..0000000 --- a/sys/fs/coda/coda_fbsd.c +++ /dev/null @@ -1,148 +0,0 @@ -/*- - * Coda: an Experimental Distributed File System - * Release 3.1 - * - * Copyright (c) 1987-1998 Carnegie Mellon University - * All Rights Reserved - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation, and - * that credit is given to Carnegie Mellon University in all documents - * and publicity pertaining to direct or indirect use of this code or its - * derivatives. - * - * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, - * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS - * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON - * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER - * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF - * ANY DERIVATIVE WORK. - * - * Carnegie Mellon encourages users of this software to return any - * improvements or extensions that they make, and to grant Carnegie - * Mellon the rights to redistribute these changes without encumbrance. - * - * @(#) src/sys/coda/coda_fbsd.cr,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/conf.h> -#include <sys/fcntl.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/module.h> -#include <sys/ucred.h> -#include <sys/vnode.h> - -#include <vm/vm.h> -#include <vm/vnode_pager.h> - -#include <fs/coda/coda.h> -#include <fs/coda/cnode.h> -#include <fs/coda/coda_vnops.h> -#include <fs/coda/coda_psdev.h> - -static struct cdevsw codadevsw = { - .d_version = D_VERSION, - .d_flags = D_NEEDGIANT, - .d_open = vc_open, - .d_close = vc_close, - .d_read = vc_read, - .d_write = vc_write, - .d_ioctl = vc_ioctl, - .d_poll = vc_poll, - .d_name = "coda", -}; - -static eventhandler_tag clonetag; - -static LIST_HEAD(, coda_mntinfo) coda_mnttbl; - -/* - * For DEVFS, using bpf & tun drivers as examples. - * - * XXX: Why use a cloned interface, aren't we really just interested in - * having a single /dev/cfs0? It's not clear the coda module knows what to - * do with more than one. - */ -static void coda_fbsd_clone(void *arg, struct ucred *cred, char *name, - int namelen, struct cdev **dev); - -static int -codadev_modevent(module_t mod, int type, void *data) -{ - struct coda_mntinfo *mnt; - - switch (type) { - case MOD_LOAD: - LIST_INIT(&coda_mnttbl); - clonetag = EVENTHANDLER_REGISTER(dev_clone, coda_fbsd_clone, - 0, 1000); - break; - - case MOD_UNLOAD: - /* - * XXXRW: At the very least, a busy check should occur here - * to prevent untimely unload. Much more serious collection - * of allocated memory needs to take place; right now we leak - * like a sieve. - */ - EVENTHANDLER_DEREGISTER(dev_clone, clonetag); - while ((mnt = LIST_FIRST(&coda_mnttbl)) != NULL) { - LIST_REMOVE(mnt, mi_list); - destroy_dev(mnt->dev); - free(mnt, M_CODA); - } - break; - - default: - return (EOPNOTSUPP); - } - return (0); -} - -static moduledata_t codadev_mod = { - "codadev", - codadev_modevent, - NULL -}; -DECLARE_MODULE(codadev, codadev_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); - -static void -coda_fbsd_clone(void *arg, struct ucred *cred, char *name, int namelen, - struct cdev **dev) -{ - struct coda_mntinfo *mnt; - int u; - - if (*dev != NULL) - return; - if (dev_stdclone(name, NULL, "cfs", &u) != 1) - return; - *dev = make_dev(&codadevsw, u, UID_ROOT, GID_WHEEL, 0600, - "cfs%d", u); - dev_ref(*dev); - mnt = malloc(sizeof(struct coda_mntinfo), M_CODA, M_WAITOK|M_ZERO); - LIST_INSERT_HEAD(&coda_mnttbl, mnt, mi_list); - mnt->dev = *dev; -} - -struct coda_mntinfo * -dev2coda_mntinfo(struct cdev *dev) -{ - struct coda_mntinfo *mnt; - - LIST_FOREACH(mnt, &coda_mnttbl, mi_list) { - if (mnt->dev == dev) - return (mnt); - } - return (NULL); -} |
