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Date: Thu, 29 May 2014 20:44:34 +0200
Message-ID: <CA+icZUWUjkp4kpsXZg+UeW5UbWU0D_aDKzh2S9_JYeLhNaWgFg@mail.gmail.com>
Subject: Re: Unionmount and overlayfs testsuite
From: Sedat Dilek <sedat.dilek@gmail.com>
To: David Howells <dhowells@redhat.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>, Al Viro <viro@zeniv.linux.org.uk>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Christoph Hellwig <hch@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>, apw@canonical.com,
        Felix Fietkau <nbd@openwrt.org>, neilb@suse.de, jordipujolp@gmail.com,
        ezk@fsl.cs.sunysb.edu, "J. R. Okajima" <hooanon05@yahoo.co.jp>,
        mszeredi@suse.cz
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On Thu, May 29, 2014 at 8:22 PM, David Howells <dhowells@redhat.com> wrote:
> Sedat Dilek <sedat.dilek@gmail.com> wrote:
>
>> >         TEST_OVERLAYFS=1 ./run.sh
>> >
>> > right?
>> >
>>
>> Yes (with my mount-patch applied).
>>
>> ( ...and... # umount /lower /upper /mnt )
>
> Can you put a couple of echo commands in settings.inc to show which side of
> the if-statement it goes and also put:
>
>         echo TEST_OVERLAYFS is $TEST_OVERLAYFS
>
> in run.sh and mount_union.sh?
>

I retried with the new kernel-config...

# modprobe -v overlayfs
insmod /lib/modules/3.15.0-rc7-58.1-iniza-lockdep/kernel/fs/overlayfs/overlayfs.ko

...and echo-line changes...

# LC_ALL=C TEST_OVERLAYFS="1" ./run.sh
[ run.sh ] TEST_OVERLAYFS is 1
***
*** ./run.sh open-plain.test
***
[ mount_union.sh ] TEST_OVERLAYFS is 1
TEST100: Open O_RDONLY
 - open_file -r /mnt/a/foo100 -R :xxx:yyy:zzz
 - open_file -r /mnt/a/foo100 -R :xxx:yyy:zzz
TEST101: Open O_WRONLY
 - open_file -w /mnt/a/foo101 -W q
/mnt/a/foo101: Test file not on upper filesystem  (line 30)

# LC_ALL=C df -h | egrep 'mnt|upper|lower'
lower_layer     1.9G  240K  1.9G   1% /lower
upper_layer     1.9G  4.0K  1.9G   1% /upper
overlayfs       1.9G  4.0K  1.9G   1% /mnt

# find /mnt/ /upper/ /lower/ -name foo101
/mnt/a/foo101
/upper/upper/a/foo101
/lower/a/foo101

# LC_ALL=C ll /mnt/a/foo101 /upper/upper/a/foo101 /lower/a/foo101
-rw-r--r-- 1 bin bin 12 May 29 20:42 /lower/a/foo101
-rw-r--r-- 1 bin bin 12 May 29 20:42 /mnt/a/foo101
-rw-r--r-- 1 bin bin 12 May 29 20:42 /upper/upper/a/foo101

# stat -c foo101 /mnt/ /upper/ /lower/
foo101
foo101
foo101

- Sedat -