linux-ext4 - Re: [PATCH 0/2] bigalloc + delalloc reservation leak fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20180507145216.GA999@thunk.org>
Date:   Mon, 7 May 2018 10:52:16 -0400
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     Liu Bo <bo.liu@...ux.alibaba.com>
Cc:     linux-ext4@...r.kernel.org, Eric Whitney <enwlinux@...il.com>
Subject: Re: [PATCH 0/2] bigalloc + delalloc reservation leak fixes

On Mon, May 07, 2018 at 10:18:10PM +0800, Liu Bo wrote:
> These two fixes are to address the reservation leak problem we've
> found when using bigalloc with delalloc.
> 
> A specific fstests case is available at
> https://patchwork.kernel.org/patch/10384221/
> 
> Liu Bo (2):
>   Ext4: bigalloc: fix overreservation on quota accounting
>   Ext4: bigalloc: do not reserve space for delalloc extents if there is
>     an available cluster

Hi Liu,

Eric has been working in this area as well, and has been working on a
series of patches.  (This had been discussed on the weekly ext4
teleconference calls; if this is something you would be interested in
joining, please contact me via e-mail privately.)

My understanding is that his patch series is a bit more complex, since
he was working on a number of cleanups at the same time.  Eric, could
you send out your patch series, even if they aren't fully polished, so
we can see how much overlap there is between your work and Liu Bo's?

Cheers,

						- Ted