[PATCH v2] xfstests: add specific test for default ACL inheritance

[Filipe David Manana]

On Wed, Oct 16, 2013 at 5:09 PM, Eric Sandeen <sandeen at sandeen.net> wrote:
> On 10/16/13 10:52 AM, Filipe David Borba Manana wrote:
>> This test is motivated by an issue found by a btrfs user, addressed
>> and described by the following GNU/Linux kernel patch:
>>
>> https://patchwork.kernel.org/patch/3046931/
>>
>> The steps to reproduce the issue on btrfs are the following:
>>
>> $ mkfs.btrfs -f /dev/loop0
>> $ mount /dev/loop0 /mnt
>> $ mkdir /mnt/acl
>> $ setfacl -d --set u::rwx,g::rwx,o::- /mnt/acl
>> $ getfacl /mnt/acl
>> user::rwx
>> group::rwx
>> other::r-x
>> default:user::rwx
>> default:group::rwx
>> default:other::---
>>
>> $ mkdir /mnt/acl/dir1
>> $ getfacl /mnt/acl/dir1
>> user::rwx
>> group::rwx
>> other::---
>>
>> After unmounting and mounting again the filesystem, getfacl returned the
>> expected default ACL for the subdirectory:
>>
>> $ umount /mnt/acl
>> $ mount /dev/loop0 /mnt
>> $ getfacl /mnt/acl/dir1
>> user::rwx
>> group::rwx
>> other::---
>> default:user::rwx
>> default:group::rwx
>> default:other::---
>>
>> This means that the underlying ACL xattr was persisted correctly but
>> the in memory representation of the inode had (incorrectly) a NULL ACL.
>>
>> Signed-off-by: Filipe David Borba Manana <fdmanana at gmail.com>
>> ---
>>
>> V2: Moved the regression test into a dedicated and new file, as suggested
>>     by Eric Sandeen.
>
> Great, thanks.  Verified that it succeeds on xfs & ext3 as well.
>
> It also fails properly when mounting ext3 -o noacl:
>
> shared/052 1s ... [not run] ACLs not supported by this filesystem type: ext3
>
> ...
>
>> +# real QA test starts here
>> +_supported_os Linux
>
> Technically this should have a:
>
> +_supported_fs generic
>
> here.  And then it can move to tests/generic/xxx
>
> (I guess that's a little odd and redundant, and it does
> run today w/o the _supported_fs, I guess, but still
> best to be consistent).
>
> Sorry for the runaround :)
>
> If you don't mind a V3, we'll be done,  I think!

Np.
Is there any rule as for which name (number) to pick for the test case
file name?

>
> -Eric
>



-- 
Filipe David Manana,

"Reasonable men adapt themselves to the world.
 Unreasonable men adapt the world to themselves.
 That's why all progress depends on unreasonable men."