[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#19570: bug: df and bind mounts
From: |
Bernhard Voelker |
Subject: |
bug#19570: bug: df and bind mounts |
Date: |
Mon, 12 Jan 2015 22:27:13 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 |
On 01/12/2015 02:31 AM, Pádraig Brady wrote:
> On 11/01/15 23:36, Vladimir A. Pavlov wrote:
>> run /run tmpfs rw,noatime,nodiratime,nodev,noexec,mode=0755,size=1m 0 0
>> /run/cgs/httpd /usr/cgs/httpd/run none rw,bind 0 0
> Thanks for the analysis and patch,
> Current tests pass at least with it.
> I'll analyse a little more, add tests and probably push.
hmm, tmpfs is problematic anyway, as one can specify anything
as the dummy backing source device:
$ mount -t tmpfs hello:/world /mnt
$ mount -t tmpfs something /mnt
$ mount -t tmpfs / /mnt
$ findmnt /mnt
TARGET SOURCE FSTYPE OPTIONS
/mnt hello:/world tmpfs rw,relatime
/mnt something tmpfs rw,relatime
/mnt / tmpfs rw,relatime
$ df -a --out=source,target | grep /mnt
hello:/world /mnt
something /mnt
/ /mnt
I'd almost tend to recommend to classify tmpfs as dummy
file system like procfs etc.
Have a nice day,
Berny