diff options
Diffstat (limited to 'usr/src/man/man7fs')
| -rw-r--r-- | usr/src/man/man7fs/Makefile | 6 | ||||
| -rw-r--r-- | usr/src/man/man7fs/bootfs.7fs | 90 | ||||
| -rw-r--r-- | usr/src/man/man7fs/hyprlofs.7fs | 62 | ||||
| -rw-r--r-- | usr/src/man/man7fs/lxproc.7fs | 115 |
4 files changed, 272 insertions, 1 deletions
diff --git a/usr/src/man/man7fs/Makefile b/usr/src/man/man7fs/Makefile index a288c94893..d985e95410 100644 --- a/usr/src/man/man7fs/Makefile +++ b/usr/src/man/man7fs/Makefile @@ -12,19 +12,23 @@ # # Copyright 2011, Richard Lowe # Copyright 2013 Nexenta Systems, Inc. All rights reserved. +# Copyright 2014 Joyent, Inc. All rights reserved. # include $(SRC)/Makefile.master MANSECT= 7fs -MANFILES= ctfs.7fs \ +MANFILES= bootfs.7fs \ + ctfs.7fs \ dcfs.7fs \ dev.7fs \ devfs.7fs \ fd.7fs \ hsfs.7fs \ + hyprlofs.7fs \ lofs.7fs \ + lxproc.7fs \ objfs.7fs \ pcfs.7fs \ sharefs.7fs \ diff --git a/usr/src/man/man7fs/bootfs.7fs b/usr/src/man/man7fs/bootfs.7fs new file mode 100644 index 0000000000..130530a1f6 --- /dev/null +++ b/usr/src/man/man7fs/bootfs.7fs @@ -0,0 +1,90 @@ +.\" +.\" This file and its contents are supplied under the terms of the +.\" Common Development and Distribution License ("CDDL"), version 1.0. +.\" You may only use this file in accordance with the terms of version +.\" 1.0 of the CDDL. +.\" +.\" A full copy of the text of the CDDL should have accompanied this +.\" source. A copy of the CDDL is also available via the Internet at +.\" http://www.illumos.org/license/CDDL. +.\" +.\" +.\" Copyright (c) 2014 Joyent, Inc. All rights reserved. +.\" + +.TH BOOTFS 7FS "May 8, 2014" +.SH NAME +bootfs \- boot-time module file system + +.SH DESCRIPTION + +The +.B bootfs +file system is a read-only file system that provides access to any +boot-time modules that were passed in to the system loader which were +tagged with the type +.IR file . +.B bootfs +does not display any boot-time modules that were tagged as type +.I hash +or type +.IR rootfs . + +If modules with duplicate names and paths are specified, only the first +such entry will be present in the file system and a counter will be +incremented to indicate that a duplicate entry was found, but is not +present into the file system. If a module's name only consists of +invalid characters, such as '.', '..', or '/', then the module will not +be present in the file system and a counter will be incremented to +indicate that this has occurred. In both cases, diagnostic information +is available through the kstats facility. + +.SH FILES +.sp +.ne 2 +.na +.B /system/boot +.ad +.RS 8n +The mount point for the +.B bootfs +file system in the global zone. + +.SH EXAMPLES + +.LP +Example 1 Determining if collisions or invalid names are present +.sp +.LP +To determine if any boot-time modules were not created due to collisions +or invalid names, enter the following command: + +.sp +.in +2 +.nf +# kstat -m bootfs +module: bootfs instance: 1 +name: bootfs class: fs + crtime 236063.651324041 + nbytes 8749355 + ndirs 3 + ndiscard 0 + ndup 0 + nfiles 2 + snaptime 236063.651324041 +.fi +.in -2 +.sp +.LP +The field +.B ndiscard +lists the number of boot-time modules that were discarded due to naming conflicts. The field +.B ndup +lists the number of duplicate entries that were found and therefore not displayed in the file system. +.sp +.LP +This information is provided for informational purposes only, it is not to be construed as a stable interface. + +.SH SEE ALSO +.BR kstat (1M), +.BR grub (5) diff --git a/usr/src/man/man7fs/hyprlofs.7fs b/usr/src/man/man7fs/hyprlofs.7fs new file mode 100644 index 0000000000..8655791193 --- /dev/null +++ b/usr/src/man/man7fs/hyprlofs.7fs @@ -0,0 +1,62 @@ +'\" te +.\" Copyright (c) 2012, Joyent, Inc. +.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. +.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License. +.\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner] +.TH HYPRLOFS 7FS "March 7, 2012" +.SH NAME +hyprlofs \- fast name space virtual file system +.SH SYNOPSIS +.LP +.nf +#include <sys/fs/hyprlofs.h> + +\fB\fR\fBmount\fR (\fB\fR\fIspecial\fR, \fB\fR\fIdirectory\fR, \fB\fR\fIMS_DATA\fR, \fB\fR\fI"hyprlofs"\fR, \fB\fR\fINULL\fR, \fB\fR\fI0\fR); +.fi + +.SH DESCRIPTION +.sp +.LP +\fBhyprlofs\fR is a hybrid file system combining features from +\fBtmpfs(7FS)\fR and \fBlofs(7FS)\fR. +As with \fBlofs\fR, the \fBhyprlofs\fR file system allows new, virtual file +systems to be created which provide access to existing files using alternate +pathnames. In addition, the files themselves may have alternate names and +paths within the mount. +Unlike \fBlofs\fR, files cannot be created and backing files cannot be removed. +The name space is completely managed through ioctls on the mount. +Entries in the name space are not mounts and thus, they will not appear in the +mnttab. The file system is designed to provide a very fast name space to the +backing files. The name space can be modified very quickly through the ioctl +interface. +.sp +.LP +\fBhyprlofs\fR file systems can be mounted with the command: +.sp +.in +2 +.nf +\fBmount \fR\fB-F\fR\fB hyprlofs swap \fR\fIdirectory\fR +.fi +.in -2 + +.sp +.LP +The name space used by \fBhyprlofs\fR exists only in-memory so it will consume +a small amount of the system's virtual memory. The files themselves are backed +by the original file as with \fBlofs\fR. + +.SH SEE ALSO +.sp +.LP +\fBdf\fR(1M), \fBmount\fR(1M), \fBswap\fR(1M), +\fBmount\fR(2), \fBumount\fR(2) +.sp +.LP +\fISystem Administration Guide: Basic Administration\fR +.SH DIAGNOSTICS +.sp +.LP +\fBdf\fR(1M) output is of limited accuracy since +the space available to \fBhyprlofs\fR is dependent on the swap +space demands of the entire system and the files in the name space are not +included. diff --git a/usr/src/man/man7fs/lxproc.7fs b/usr/src/man/man7fs/lxproc.7fs new file mode 100644 index 0000000000..7ef10ce343 --- /dev/null +++ b/usr/src/man/man7fs/lxproc.7fs @@ -0,0 +1,115 @@ +'\" te +.\" Copyright (c) 2012, Joyent, Inc. +.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. +.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License. +.\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner] +.TH LXPROC 7FS "April 25, 2012" +.SH NAME +lxproc \- a loosely Linux-compatible /proc +.SH SYNOPSIS +.LP +.nf +\fB\fR\fBmount\fR (\fB\fR\fI"lxproc"\fR, \fB\fR\fIdirectory\fR, \fB\fR\fIMS_DATA\fR, \fB\fR\fI"lxproc"\fR, \fB\fR\fINULL\fR, \fB\fR\fI0\fR); +.fi + +.SH DESCRIPTION +.sp +.LP +\fBlxproc\fR is an implementation of the \fB/proc\fR filesystem that +loosely matches the Linux semantics of providing human-readable text files +that correspond to elements of the system. +As with both \fBproc\fR(4) and Linux \fB/proc\fR, \fBlxproc\fR makes available +a directory for every process, with each directory containing a number +of files; like Linux \fB/proc\fR but unlike \fBproc\fR(4), \fBlxproc\fR also +makes available a number of files related to system-wide information. +To ascertain the meaning and structure of the files provided via +\fBlxproc\fR, users should consult the Linux documentation. +.sp +.LP +The \fBlxproc\fR compatibility layer is +provided only as a best-effort for simple Linux \fB/proc\fR readers; it +is not intended to exactly mimic Linux semantics and nor does it attempt to +somehow fool a consumer into believing that it is operating within a Linux +environment. As such, \fBlxproc\fR should only be used by Linux-specific +programs that are willing to trade precision in understanding the +system in return for Linux compatibility. To programmatically understand +the system precisely and in terms of its native constructs, +one should not use \fBlxproc\fR, but rather \fBproc\fR(4) or +\fBkstat\fR(3KSTAT). +To understand +a process or group of processes from either a shell script or the command line, +one should not use \fBlxproc\fR, but rather \fBproc\fR(4)-based tools like +\fBprstat\fR(1M), +\fBpfiles\fR(1), +\fBpargs\fR(1), +\fBpmap\fR(1), +\fBptree\fR(1), +\fBplimit\fR(1), +\fBpflags\fR(1), +\fBpcred\fR(1), +\fBpstack\fR(1), +\fBpldd\fR(1), +\fBpsig\fR(1), +or +\fBpwdx\fR(1). +To understand system-wide constructs from either a shell script or the +command line, one should not use \fBlxproc\fR, but rather +\fBkstat\fR(3KSTAT)-based tools like +\fBkstat\fR(1M), +\fBmpstat\fR(1M), +\fBiostat\fR(1M), +\fBnetstat\fR(1M) or +\fBpsrinfo\fR(1M). +.sp +.LP +Like \fB/proc\fR, \fBlxproc\fR can be mounted on any mount point, but the +preferred mount point is \fB/system/lxproc\fR; if a zone brand elects to +mount it by default, this will (or should) generally be the mount point. +.sp +.LP +\fBlxproc\fR can be mounted with the command: +.sp +.in +2 +.nf +\fBmount \fR\fB-F\fR\fB lxproc lxproc \fR\fIdirectory\fR +.fi +.in -2 + +.SH SEE ALSO +.sp +.LP +\fBdf\fR(1M), +\fBiostat\fR(1M), +\fBkstat\fR(1M), +\fBmpstat\fR(1M), +\fBmount\fR(1M), +\fBnetstat\fR(1M), +\fBpargs\fR(1), +\fBpcred\fR(1), +\fBpfiles\fR(1), +\fBpflags\fR(1), +\fBpldd\fR(1), +\fBplimit\fR(1), +\fBpmap\fR(1), +\fBprstat\fR(1M), +\fBpsig\fR(1), +\fBpsrinfo\fR(1M), +\fBpstack\fR(1), +\fBptree\fR(1), +\fBpwdx\fR(1), +\fBmount\fR(2), \fBumount\fR(2), \fBkstat\fR(3KSTAT), \fBproc\fR(4), +\fBkstat\fR(9S) + +.SH NOTES +.sp +.LP +When choosing between offering +Linux compatibility and telling the truth, \fBlxproc\fR emphatically picks +the truth. A particular glaring example of this is the Linux notion of +"tasks" (that is, threads), which -- due to historical misadventures on +Linux -- allocate their identifiers from the process identifier space. +(That is, each thread has in effect a pid.) Some Linux \fB/proc\fR readers +have come to depend on this attribute, and become confused when threads +appear with proper identifiers, so \fBlxproc\fR simply opts for the pre-2.6 +behavior, and does not present the tasks directory at all. + |