linux-kernel - Re: [git pull] more vfs bits

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Date:	Sun, 22 Feb 2015 16:12:07 +0100
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	David Howells <dhowells@...hat.com>,
	Miklos Szeredi <mszeredi@...e.cz>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: [git pull] more vfs bits

On Sun, Feb 22, 2015 at 4:05 PM, Sedat Dilek <sedat.dilek@...il.com> wrote:
> On Sun, Feb 22, 2015 at 11:36 AM, Sedat Dilek <sedat.dilek@...il.com> wrote:
>> On Sun, Feb 22, 2015 at 10:37 AM, Al Viro <viro@...iv.linux.org.uk> wrote:
>>> On Sun, Feb 22, 2015 at 10:32:02AM +0100, Sedat Dilek wrote:
>>>
>>>> How do you test?
>>>
>>> Mostly xfstests and LTP, plus assorted tests depending on the areas touched...
>>> Any extra testing is welcome - the more, the merrier...
>>
>> As said I wanted to test with unionmount-testsuite from Git HEAD master.
>>
>> But...
>>
>> The README is out-of-date and...
>>
>> ...my python3 throws me a...
>>
>> $ LC_ALL=C ./run --ov --set-up 2>&1 | tee
>> ../unionmount-testsuite-log_ov-set-up_$(uname -r).txt
>> Traceback (most recent call last):
>>   File "./run", line 107, in <module>
>>     set_up(ctx)
>>   File "/home/wearefam/src/unionmount-testsuite/unionmount-testsuite-git/set_up.py",
>> line 26, in set_up
>>     os.sync()
>> AttributeError: 'module' object has no attribute 'sync'
>>
>> $ dpkg -l | grep python3
>> ii  python3
>> 3.2.3-0ubuntu1.2                                    interactive
>> high-level object-oriented language (default python3 version)
>> ii  python3-minimal
>> 3.2.3-0ubuntu1.2                                    minimal subset of
>> the Python language (default python3 version)
>> ii  python3.2
>> 3.2.3-0ubuntu3.6                                    Interactive
>> high-level object-oriented language (version 3.2)
>> ii  python3.2-minimal
>> 3.2.3-0ubuntu3.6                                    Minimal subset of
>> the Python language (version 3.2)
>>
>> AFAICS I had reported already the README needs a refresh.
>>
>> I will continue with LTP-lite testing and fio.
>>
>
> [ +Miklos ]
>
> I switched from python-3.2 to python-3.4 from a 3rd-party PPA (see [1]
> and [2]) here on Ubuntu/precise.
>
> $ sudo add-apt-repository ppa:fkrull/deadsnakes
> $ sudo apt-get update
> $ sudo apt-get install python3.4 python3-deadsnakes
>
> $ cd /usr/bin/
> $ ln -sf python3.4 python3
>
> $ python3 --version
> Python 3.4.2
>
> David, the requirement of which minimal python3 release should be
> documented (README?).
> Thanks.
>
> As the mount-type changed mount_union.py needs a refresh, too.
> We need to distinguish when OverlayFS is built as a module.
>
> $ grep -i overlay /boot/config-3.19.0-9526.2-iniza-small
> CONFIG_OVERLAY_FS=m
>
> Formerly: CONFIG_OVERLAYFS_FS=m
>
> diff --git a/mount_union.py b/mount_union.py
> index 4999daa40989..e1963d6eb22a 100644
> --- a/mount_union.py
> +++ b/mount_union.py
> @@ -27,6 +27,6 @@ def mount_union(ctx):
>          workdir = upper_mntroot + "/work"
>          os.mkdir(upperdir)
>          os.mkdir(workdir)
> -        system("mount -t overlayfs overlayfs " + union_mntroot +
> +        system("mount -t overlay overlay " + union_mntroot +
>                 " -olowerdir=" + lower_mntroot + ",upperdir=" +
> upperdir + ",workdir=" + workdir)
>          ctx.note_upper_fs(upper_mntroot, testdir)
>
> In the end I could run unionmount-testsuite on vanilla-upstream (w/o
> vfs.git#for-linus, test results will follow).
>
> $ sudo modprobe -v overlay
>
> $ sudo LC_ALL=C ./run --ov 2>&1 | tee
> ../logs/results_unionmount-testsuite_$(uname -r).txt
>
> Have more fun!
>
> Regards,
> - Sedat -
>
>
> [1] http://askubuntu.com/a/290283
> [2] http://askubuntu.com/questions/244544/how-do-i-install-python-3-3

Vanilla-upstream plus vfs.git#for-linus is fine here (no changes in
dmesg before/after u-m testing).

- Sedat -

View attachment "results_unionmount-testsuite_3.19.0-9526.2-iniza-small.txt" of type "text/plain" (205470 bytes)