lindev(4): remove the device
lindev(4) was only used to provide /dev/full which is now a standard feature of FreeBSD. /dev/full was never linux-specific and provides a generally useful feature. Document this in UPDATING and bump __FreeBSD_version. This will be documented in the PH shortly. Reported by: jkim
This commit is contained in:
Eitan Adler
parent
b100acf254
commit
461dbce2d9
4
UPDATING
4
UPDATING
@ -31,6 +31,10 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW:
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disable the most expensive debugging functionality run
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"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
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20140430:
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The lindev device has been removed since /dev/full has been made a
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standard device. __FreeBSD_version has been bumped.
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20140418:
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The YES_HESIOD knob has been removed. It has been obsolete for
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a decade. Please move to using WITH_HESIOD instead or your builds
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@ -142,6 +142,7 @@ MAN= aac.4 \
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filemon.4 \
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firewire.4 \
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fpa.4 \
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full.4 \
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fwe.4 \
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fwip.4 \
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fwohci.4 \
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@ -226,7 +227,6 @@ MAN= aac.4 \
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le.4 \
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led.4 \
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lge.4 \
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${_lindev.4} \
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${_linux.4} \
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lmc.4 \
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lo.4 \
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@ -790,7 +790,6 @@ _if_vxge.4= if_vxge.4
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_if_wpi.4= if_wpi.4
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_ipmi.4= ipmi.4
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_io.4= io.4
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_lindev.4= lindev.4
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_linux.4= linux.4
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_ndis.4= ndis.4
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_nfe.4= nfe.4
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@ -819,7 +818,6 @@ _wpi.4= wpi.4
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_xen.4= xen.4
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_xnb.4= xnb.4
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MLINKS+=lindev.4 full.4
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.endif
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.if ${MACHINE_CPUARCH} == "amd64"
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@ -1,73 +0,0 @@
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.\"-
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.\" Copyright (c) 2009 "Bjoern A. Zeeb" <bz@FreeBSD.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd September 26, 2009
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.Dt LINDEV 4
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.Os
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.Sh NAME
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.Nm lindev
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.Nd Linux-specific pseudo devices support
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.Sh SYNOPSIS
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To compile this collection of linux-specific pseudo devices into the kernel,
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place the following line in your kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device lindev"
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.Ed
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.Pp
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Alternatively, to load the driver as a module at boot time,
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place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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lindev_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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module provides a collection of linux-specific pseudo devices.
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.Sh DEVICES
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.Bl -tag -width /dev/full
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.It Pa /dev/full
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The
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.Xr full
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device always returns
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.Er ENOSPC
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on write attempts.
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For reads it emulates
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.Xr zero 4 .
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.El
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.Sh FILES
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.Bl -tag -width /dev/full
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.It Pa /dev/full
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.El
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.Sh SEE ALSO
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.Xr null 4 ,
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.Xr zero 4
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.Sh HISTORY
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The
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.Nm
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module first appeared in
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.Fx 8.1 .
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@ -1,103 +0,0 @@
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/*-
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* Copyright (c) 2009 Ed Schouten <ed@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/systm.h>
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#include <sys/uio.h>
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#include <dev/lindev/lindev.h>
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static struct cdev *full_dev;
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static d_read_t full_read;
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static d_write_t full_write;
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static struct cdevsw full_cdevsw = {
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.d_version = D_VERSION,
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.d_read = full_read,
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.d_write = full_write,
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.d_name = "full",
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};
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static void *zbuf;
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/* ARGSUSED */
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static int
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full_read(struct cdev *dev __unused, struct uio *uio, int flags __unused)
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{
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int error = 0;
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while (uio->uio_resid > 0 && error == 0)
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error = uiomove(zbuf, MIN(uio->uio_resid, PAGE_SIZE), uio);
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return (error);
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}
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/* ARGSUSED */
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static int
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full_write(struct cdev *dev __unused, struct uio *uio __unused,
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int flags __unused)
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{
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return (ENOSPC);
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}
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/* ARGSUSED */
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int
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lindev_modevent_full(module_t mod __unused, int type, void *data __unused)
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{
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switch(type) {
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case MOD_LOAD:
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zbuf = (void *)malloc(PAGE_SIZE, M_TEMP, M_WAITOK | M_ZERO);
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full_dev = make_dev(&full_cdevsw, 0, UID_ROOT, GID_WHEEL,
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0666, "full");
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if (bootverbose)
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printf("full: <full device>\n");
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break;
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case MOD_UNLOAD:
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destroy_dev(full_dev);
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free(zbuf, M_TEMP);
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break;
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case MOD_SHUTDOWN:
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break;
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default:
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return (EOPNOTSUPP);
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}
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return (0);
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}
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@ -1,73 +0,0 @@
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/*-
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* Copyright (c) 2009 "Bjoern A. Zeeb" <bz@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* "lindev" is supposed to be a collection of linux-specific devices
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* that we also support, just not by default.
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* While currently there is only "/dev/full", we are planning to see
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* more in the future.
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* This file is only the container to load/unload all supported devices;
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* the implementation of each should go into its own file.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <dev/lindev/lindev.h>
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/* ARGSUSED */
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static int
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lindev_modevent(module_t mod, int type, void *data)
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{
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int error;
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switch(type) {
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case MOD_LOAD:
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error = lindev_modevent_full(mod, type, data);
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break;
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case MOD_UNLOAD:
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error = lindev_modevent_full(mod, type, data);
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break;
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case MOD_SHUTDOWN:
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error = lindev_modevent_full(mod, type, data);
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break;
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default:
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return (EOPNOTSUPP);
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}
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return (error);
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}
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DEV_MODULE(lindev, lindev_modevent, NULL);
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MODULE_VERSION(lindev, 1);
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@ -1,34 +0,0 @@
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/*-
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* Copyright (c) 2009 "Bjoern A. Zeeb" <bz@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEV_LINDEV_LINDEV_H
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#define _DEV_LINDEV_LINDEV_H
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int lindev_modevent_full(module_t, int, void *);
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#endif /* _DEV_LINDEV_LINDEV_H */
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