linux-kernel - Re: [PATCH] netfs: Fix kernel async DIO

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Message-ID: <Z3v3-LNGff6OxObh@infradead.org>
Date: Mon, 6 Jan 2025 07:34:16 -0800
From: Christoph Hellwig <hch@...radead.org>
To: David Howells <dhowells@...hat.com>
Cc: nicolas.baranger@....fr, Steve French <smfrench@...il.com>,
	Christoph Hellwig <hch@...radead.org>,
	Jeff Layton <jlayton@...nel.org>,
	Christian Brauner <brauner@...nel.org>, netfs@...ts.linux.dev,
	linux-cifs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfs: Fix kernel async DIO

On Mon, Jan 06, 2025 at 11:37:24AM +0000, David Howells wrote:
>         mount //my/cifs/share /foo
>         dd if=/dev/zero of=/foo/m0 bs=4K count=1K
>         losetup --sector-size 4096 --direct-io=on /dev/loop2046 /foo/m0
>         echo hello >/dev/loop2046

Can you add a testcase using losetup --direct-io with a file on
$TEST_DIR so that we get coverage for ITER_BVEC directio to xfstests?