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Date:   Wed, 18 May 2022 18:51:41 -0600
From:   Keith Busch <kbusch@kernel.org>
To:     Eric Biggers <ebiggers@kernel.org>
Cc:     Keith Busch <kbusch@fb.com>, linux-fsdevel@vger.kernel.org,
        linux-block@vger.kernel.org, axboe@kernel.dk,
        Kernel Team <Kernel-team@fb.com>, hch@lst.de,
        bvanassche@acm.org, damien.lemoal@opensource.wdc.com
Subject: Re: [PATCHv2 0/3] direct io alignment relax
Message-ID: <YoWUnTxag7TsCBwa@kbusch-mbp.dhcp.thefacebook.com>
References: <20220518171131.3525293-1-kbusch@fb.com>
 <YoWAnDR/XOwegQNZ@gmail.com>
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On Wed, May 18, 2022 at 11:26:20PM +0000, Eric Biggers wrote:
> On Wed, May 18, 2022 at 10:11:28AM -0700, Keith Busch wrote:
> > From: Keith Busch <kbusch@kernel.org>
> > 
> > Including the fs list this time.
> > 
> > I am still working on a better interface to report the dio alignment to
> > an application. The most recent suggestion of using statx is proving to
> > be less straight forward than I thought, but I don't want to hold this
> > series up for that.
> > 
> 
> Note that I already implemented the statx support and sent it out for review:
> https://lore.kernel.org/linux-fsdevel/20220211061158.227688-1-ebiggers@kernel.org/T/#u
> However, the patch series only received one comment.  I can send it out again if
> people have become interested in it again...

Thanks, I didn't see that the first time around, but I'll be sure to look at
your new version. It sounds like you encountered the same problem I did
regarding block device handles: the devtmpfs inodes for the raw block device
handles are not the bdev inodes. I do think it's useful the alignment
attributes are accessible through the block device files, though.