Linux Btrfs filesystem development
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From: David Sterba <dsterba@suse.cz>
To: Hongbo Li <lihongbo22@huawei.com>
Cc: clm@fb.com, josef@toxicpanda.com, dsterba@suse.com,
	linux-btrfs@vger.kernel.org
Subject: Re: [PATCH] btrfs: support STATX_DIOALIGN for statx
Date: Mon, 24 Jun 2024 18:02:48 +0200	[thread overview]
Message-ID: <20240624160248.GO25756@twin.jikos.cz> (raw)
In-Reply-To: <20240620132000.888494-1-lihongbo22@huawei.com>

On Thu, Jun 20, 2024 at 09:20:00PM +0800, Hongbo Li wrote:
> Add support for STATX_DIOALIGN for btrfs, so that direct I/O alignment
> restrictions are exposed to userspace in a generic way.

I looked at 8434ef1d8aafc523 that does also has some code coments, the
generic changelog does not mention DIO vs other features like verity or
inline files.

The statx manual page describes the high level meaning of the
dio_*_align values, so this is filesystem and implementation dependent.
So please mention what values can be expected for various features.

We do buffered io fallback on compressed data, on inline files too (I
think), it may be possible on verity too.

  reply	other threads:[~2024-06-24 16:02 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-20 13:20 [PATCH] btrfs: support STATX_DIOALIGN for statx Hongbo Li
2024-06-24 16:02 ` David Sterba [this message]
2024-07-25 13:45   ` Hongbo Li
2024-06-25 21:56 ` kernel test robot
2024-06-26  0:24 ` kernel test robot

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