diff options
Diffstat (limited to 'sbin/mount_lfs')
| -rw-r--r-- | sbin/mount_lfs/Makefile | 11 | ||||
| -rw-r--r-- | sbin/mount_lfs/mount_lfs.8 | 125 | ||||
| -rw-r--r-- | sbin/mount_lfs/mount_lfs.c | 147 | ||||
| -rw-r--r-- | sbin/mount_lfs/pathnames.h | 36 |
4 files changed, 319 insertions, 0 deletions
diff --git a/sbin/mount_lfs/Makefile b/sbin/mount_lfs/Makefile new file mode 100644 index 0000000..d3fb12b --- /dev/null +++ b/sbin/mount_lfs/Makefile @@ -0,0 +1,11 @@ +# @(#)Makefile 8.2 (Berkeley) 3/27/94 + +PROG= mount_lfs +SRCS= mount_lfs.c getmntopts.c +MAN8= mount_lfs.0 + +MOUNT= ${.CURDIR}/../mount +CFLAGS+= -I${MOUNT} +.PATH: ${MOUNT} + +.include <bsd.prog.mk> diff --git a/sbin/mount_lfs/mount_lfs.8 b/sbin/mount_lfs/mount_lfs.8 new file mode 100644 index 0000000..bd1bd8c --- /dev/null +++ b/sbin/mount_lfs/mount_lfs.8 @@ -0,0 +1,125 @@ +.\" Copyright (c) 1993, 1994 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" 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. +.\" +.\" @(#)mount_lfs.8 8.5 (Berkeley) 3/30/94 +.\" +.Dd "March 30, 1994" +.Dt MOUNT_LFS 8 +.Os BSD 4.4 +.Sh NAME +.Nm mount_lfs +.Nd mount a log-structured file system +.Sh SYNOPSIS +.Nm mount_lfs +.Op Fl dns +.Op Fl o Ar options +.Ar special +.Ar node +.Sh DESCRIPTION +The +.Nm mount_lfs +command attaches a log-structured file system +.Ar special +device on to the file system tree at the point +.Ar node . +In addition, the +.Xr lfs_cleanerd 8 +utility is invoked to clean the file system periodically. +.Pp +This command is normally executed by +.Xr mount 8 +at boot time. +.Pp +The options are as follows: +.Bl -tag -width Ds +.It Fl d +Run +.Xr lfs_cleanerd 8 +in debug mode. +.It Fl o +Options are specified with a +.Fl o +flag followed by a comma separated string of options. +See the +.Xr mount 8 +man page for possible options and their meanings. +.It Fl n +Don't start +.Xr lfs_cleanerd 8 +on the file system. +.It Fl s +Cause +.Xr lfs_cleanerd 8 +to read data in small chunks when cleaning the file system. +.El +.Sh SEE ALSO +.Xr mount 2 , +.Xr unmount 2 , +.Xr fstab 5 , +.Xr lfs_cleanerd 8 , +.Xr mount 8 +.sp +.Rs +.%A Ousterhout and Douglis +.%D 1989 +.%T "Beating the I/O Bottleneck: A Case for Log-structured File Systems" +.%J "Operating Systems Review" +.%V Vol. 23 +.%N No. 1 +.%P pp. 11-27 +.%O "also available as Technical Report UCB/CSD 88/467" +.Re +.Rs +.%A Rosenblum and Ousterhout +.%D 1991 +.%T "The Design and Implementation of a Log-Structured File System" +.%J "ACM SIGOPS Operating Systems Review" +.%V Vol. 25 +.%N No. 5 +.Re +.Rs +.%A Seltzer +.%D 1992 +.%T "File System Performance and Transaction Support" +.%B "PhD Thesis, University of California, Berkeley" +.%O "also available as Technical Report UCB/ERL M92" +.Re +.Rs +.%A Seltzer, Bostic, McKusick and Staelin +.%D 1993 +.%T "An Implementation of a Log-Structured File System for UNIX" +.%J "Proc. of the Winter 1993 USENIX Conf." +.%P pp. 315-331 +.Re +.Sh HISTORY +The +.Nm mount_lfs +function first appeared in 4.4BSD. diff --git a/sbin/mount_lfs/mount_lfs.c b/sbin/mount_lfs/mount_lfs.c new file mode 100644 index 0000000..374c930 --- /dev/null +++ b/sbin/mount_lfs/mount_lfs.c @@ -0,0 +1,147 @@ +/*- + * Copyright (c) 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * 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. + */ + +#ifndef lint +static char copyright[] = +"@(#) Copyright (c) 1993, 1994\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)mount_lfs.c 8.3 (Berkeley) 3/27/94"; +#endif /* not lint */ + +#include <sys/param.h> +#include <sys/mount.h> + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "mntopts.h" +#include "pathnames.h" + +struct mntopt mopts[] = { + MOPT_STDOPTS, + MOPT_UPDATE, + { NULL } +}; + +void usage __P((void)); +void invoke_cleaner __P((char *)); + +int short_rds, cleaner_debug; + +int +main(argc, argv) + int argc; + char *argv[]; +{ + struct ufs_args args; + int ch, mntflags, noclean; + char *fs_name, *options; + + options = NULL; + mntflags = noclean = 0; + while ((ch = getopt(argc, argv, "dno:s")) != EOF) + switch (ch) { + case 'd': + cleaner_debug = 1; + break; + case 'n': + noclean = 1; + break; + case 'o': + getmntopts(optarg, mopts, &mntflags); + break; + case 's': + short_rds = 1; + break; + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc != 2) + usage(); + + args.fspec = argv[0]; /* the name of the device file */ + fs_name = argv[1]; /* the mount point */ + +#define DEFAULT_ROOTUID -2 + args.export.ex_root = DEFAULT_ROOTUID; + if (mntflags & MNT_RDONLY) + args.export.ex_flags = MNT_EXRDONLY; + else + args.export.ex_flags = 0; + + if (mount(MOUNT_LFS, fs_name, mntflags, &args)) + err(1, NULL); + + if (!noclean) + invoke_cleaner(fs_name); + /* NOTREACHED */ + + exit(0); +} + +void +invoke_cleaner(name) + char *name; +{ + char *args[6], **ap = args; + + /* Build the argument list. */ + *ap++ = _PATH_LFS_CLEANERD; + if (short_rds) + *ap++ = "-s"; + if (cleaner_debug) + *ap++ = "-d"; + *ap++ = name; + *ap = NULL; + + execv(args[0], args); + err(1, "exec %s", _PATH_LFS_CLEANERD); +} + +void +usage() +{ + (void)fprintf(stderr, + "usage: mount_lfs [-dns] [-o options] special node\n"); + exit(1); +} diff --git a/sbin/mount_lfs/pathnames.h b/sbin/mount_lfs/pathnames.h new file mode 100644 index 0000000..fafbf71 --- /dev/null +++ b/sbin/mount_lfs/pathnames.h @@ -0,0 +1,36 @@ +/*- + * Copyright (c) 1993 + * The Regents of the University of California. All rights reserved. + * + * 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. + * + * @(#)pathnames.h 8.1 (Berkeley) 6/8/93 + */ + +#define _PATH_LFS_CLEANERD "/usr/libexec/lfs_cleanerd" |
