linux-kernel - Re: Adding subroot information to /proc/mounts, or obtaining that through other means

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Message-ID: <4679AEA7.8050806@oracle.com>
Date:	Wed, 20 Jun 2007 18:48:07 -0400
From:	Chuck Lever <chuck.lever@...cle.com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-fsdevel@...r.kernel.org, util-linux-ng@...r.kernel.org
Subject: Re: Adding subroot information to /proc/mounts, or obtaining that
 through other means

H. Peter Anvin wrote:
> Chuck Lever wrote:
>> To support NFS client performance statistics, I recently added
>> /proc/self/mountstats.  That might be a place to add details about
>> --move and --bind mounts without changing the format of /proc/mounts.
> 
> I just looked at /proc/self/mountstats; it seems to have no more
> information than /proc/self/mounts, but in an even more annoying format.
>  Either I'm missing something, this file doesn't add anything at all.

The advantage is that it doesn't have strong user space dependencies on 
its format like /proc/mounts does.

If you have NFS mount points, you will see that it includes a great deal 
of additional information about each mount.

View attachment "chuck.lever.vcf" of type "text/x-vcard" (292 bytes)