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  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]
Date:   Mon, 13 Jul 2020 18:09:57 +0200
From:   David Sterba <>
To:     Goldwyn Rodrigues <>
Cc:     Christoph Hellwig <>, Dave Chinner <>,
        Damien Le Moal <>,
        Naohiro Aota <>,
        Johannes Thumshirn <>,
        Matthew Wilcox <>,,,,,
Subject: Re: [PATCH 2/2] iomap: fall back to buffered writes for invalidation

On Mon, Jul 13, 2020 at 07:20:50AM -0500, Goldwyn Rodrigues wrote:
> On  9:46 13/07, Christoph Hellwig wrote:
> > Failing to invalid the page cache means data in incoherent, which is
> > a very bad state for the system.  Always fall back to buffered I/O
> > through the page cache if we can't invalidate mappings.
> > 
> > Signed-off-by: Christoph Hellwig <>
> Thanks. This will help btrfs. The current next tree contains the iomap
> changes I recomended and would need to be reverted in order to
> incorporate this. Once this is in the next tree I will (re)format the
> btrfs iomap dio patches.

Patches in next don't need to be reverted, if you put together a branch
with any iomap or other prep patches + btrfs iomap-dio I'll replace it
in the for-next snapshot I push.

Powered by blists - more mailing lists