svn commit: r305968 - head/etc/autofs

Edward Tomasz Napierala trasz at freebsd.org
Tue Sep 20 03:43:44 UTC 2016


Mounting removable media async improves performance and reduces wear.
And AFAIK that's what most Linux distros used to do.

On 0919T2032, Ronald Klop wrote:
> Hi,
> 
> Your commit message says in words exactly what the diff says in code.  
> Would you like to elaborate on why the change is made? I'm curious   
> because this could cause severe damage to the filesystem on unclean eject  
> of the media.
> 
> Regards,
> Ronald.
> 
> 
> On Mon, 19 Sep 2016 10:51:27 +0200, Edward Tomasz Napierala  
> <trasz at freebsd.org> wrote:
> 
> > Author: trasz
> > Date: Mon Sep 19 08:51:27 2016
> > New Revision: 305968
> > URL: https://svnweb.freebsd.org/changeset/base/305968
> >
> > Log:
> >   Make autofs use the "async" flag for msdosfs and ufs filesystems  
> > mounted
> >   on /media.
> >  MFC after:	1 month
> >
> > Modified:
> >   head/etc/autofs/special_media
> >
> > Modified: head/etc/autofs/special_media
> > ==============================================================================
> > --- head/etc/autofs/special_media	Mon Sep 19 07:47:56 2016	(r305967)
> > +++ head/etc/autofs/special_media	Mon Sep 19 08:51:27 2016	(r305968)
> > @@ -46,6 +46,8 @@ print_map_entry() {
> >  			    "Cannot mount ${_fstype} formatted device /dev/${_p}: Install  
> > sysutils/fusefs-ntfs first"
> >  			exit 1
> >  		fi
> > +	elif [ "${_fstype}" = "msdosfs" -o "${_fstype}" = "ufs" ]; then
> > +		echo "-fstype=${_fstype},nosuid,async	:/dev/${_p}"
> >  	else
> >  		echo "-fstype=${_fstype},nosuid	:/dev/${_p}"
> >  	fi
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