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Date:   Wed, 4 Aug 2021 09:26:15 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     Satya Tangirala <satyat@...gle.com>,
        "Theodore Y . Ts'o" <tytso@....edu>,
        Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
        Jens Axboe <axboe@...nel.dk>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        open list <linux-kernel@...r.kernel.org>,
        linux-fscrypt@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, linux-xfs@...r.kernel.org,
        linux-block@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [PATCH v9 0/9] add support for direct I/O with fscrypt using
 blk-crypto

On Thu, 22 Jul 2021, Eric Biggers wrote:

> Hi Lee,
> 
> On Thu, Jul 22, 2021 at 12:23:47PM +0100, Lee Jones wrote:
> > 
> > No review after 7 weeks on the list.
> > 
> > Is there anything Satya can do to help expedite this please?
> > 
> 
> This series is basically ready, but I can't apply it because it depends on the
> other patch series
> "[PATCH v4 0/9] ensure bios aren't split in middle of crypto data unit"
> (https://lkml.kernel.org/linux-block/20210707052943.3960-1-satyaprateek2357@gmail.com/T/#u).
> I will be re-reviewing that other patch series soon, but it primary needs review
> by the people who work more regularly with the block layer, and it will have to
> go in through the block tree (I can't apply it to the fscrypt tree).
> 
> The original version of this series didn't require so many block layer changes,
> but it would have only allowed direct I/O with user buffer pointers aligned to
> the filesystem block size, which was too controversial with other filesystem
> developers; see the long discussion at
> https://lkml.kernel.org/linux-fscrypt/20200720233739.824943-1-satyat@google.com/T/#u.
> 
> In addition, it was requested that we not add features to the "legacy" direct
> I/O implementation (fs/direct-io.c), so I have a patch series in progress
> "[PATCH 0/9] f2fs: use iomap for direct I/O"
> (https://lkml.kernel.org/linux-f2fs-devel/20210716143919.44373-1-ebiggers@kernel.org/T/#u)
> which will change f2fs to use iomap.
> 
> Also please understand that Satya has left Google, so any further work from him
> on this is happening on a personal capacity in his free time.

Thanks for the update Eric.  I'll push this to the back of my queue
and check back with you at a later date.  Hopefully we see some
interest from the other maintainers sooner, rather than later.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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