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Joseph V Moss wrote:
> Using /proc/mounts could be an issue for anyone trying to use this
with a kernel
> that truncates /proc/mounts.
>
Which kernel truncates /proc/mounts?
Any recent kernel uses the seq_file interface which guarantees that
nothing gets truncated. I have a system up and running that works fine
with about 2500 mounts.
>
>>Hello,
>>
>>The netfs scripts for Red Hat go through and umount any loopback devices
>>before attempting to umount the encompassing filesystem. This seems a
sane
>>thing to do (and I have a bug on said issue), so I've added similar
>>functionality to the autofs init script. Attached is a patch. Comments
>>encouraged. Testing by debian folks would be nice, too.
>>
>>-Jeff
>>
>>--- autofs-4.1.3/samples/rc.autofs.in.umount-loopback 2004-09-02
15:55:21.722705296 -0400
>>+++ autofs-4.1.3/samples/rc.autofs.in 2004-09-02 16:16:09.985940440 -0400
>>@@ -351,6 +351,31 @@ function signal_automounts()
>> return $RETVAL
>> }
>>
>>+function umount_loopback()
>>+{
>>+ loops=`LC_ALL=C awk '!/^#/ && $1 ~ /^\/dev\/loop/ && $2 != "/"
{print $2}' /proc/mounts`
>>+ automounts=`LC_ALL=C awk '!/^#/ && $1 ~ /^automount/ {print $2}'
/proc/mounts`
>>+
>>+ for l in $loops
>>+ do
>>+ for a in $automounts
>>+ do
>>+ command="echo $l | grep -E '^$a'"
>>+ match=`echo $command | sh`
>>+ if [ -n "$match" ]; then
>>+ echo ""
>>+ echo -n $"Unmounting loopback filesystem $match: "
>>+ umount -d $match
>>+ if [ $? -eq 0 ]; then
>>+ echo "done"
>>+ else
>>+ echo "failed ($?)"
>>+ fi
>>+ fi
>>+ done
>>+ done
>>+}
>>+
>> # Redhat start/stop function.
>> #
>> function redhat()
>>@@ -386,6 +411,7 @@ case "$1" in
>> if [ -z "`pidofproc $prog`" -a -z "`getmounts`" ]; then
>> RETVAL=0
>> else
>>+ umount_loopback
>> signal_automounts
>> RETVAL=$?
>> fi
>>@@ -477,6 +503,7 @@ case "$1" in
>> ;;
>> stop)
>> echo 'Stopping automounter.'
>>+ umount_loopback
>> start-stop-daemon --stop --quiet --signal USR2 --exec $DAEMON
>> ;;
>> reload|restart)
>>
>>_______________________________________________
>>autofs mailing list
>>[EMAIL PROTECTED]
>>http://linux.kernel.org/mailman/listinfo/autofs
>>
>
>
> _______________________________________________
> autofs mailing list
> [EMAIL PROTECTED]
> http://linux.kernel.org/mailman/listinfo/autofs
- --
Mike Waychison
Sun Microsystems, Inc.
1 (650) 352-5299 voice
1 (416) 202-8336 voice
http://www.sun.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NOTICE: The opinions expressed in this email are held by me,
and may not represent the views of Sun Microsystems, Inc.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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