linux-kernel - Re: [PATCH v7 3/8] fs/block: Check for IOCB_DIRECT in generic_atomic_write

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Message-ID: <20241004123410.GA19295@lst.de>
Date: Fri, 4 Oct 2024 14:34:10 +0200
From: Christoph Hellwig <hch@....de>
To: John Garry <john.g.garry@...cle.com>
Cc: axboe@...nel.dk, brauner@...nel.org, djwong@...nel.org,
	viro@...iv.linux.org.uk, jack@...e.cz, dchinner@...hat.com,
	hch@....de, cem@...nel.org, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, hare@...e.de,
	martin.petersen@...cle.com, catherine.hoang@...cle.com,
	mcgrof@...nel.org, ritesh.list@...il.com, ojaswin@...ux.ibm.com
Subject: Re: [PATCH v7 3/8] fs/block: Check for IOCB_DIRECT in
 generic_atomic_write_valid()

On Fri, Oct 04, 2024 at 09:22:49AM +0000, John Garry wrote:
> Currently FMODE_CAN_ATOMIC_WRITE is set if the bdev can atomic write and
> the file is open for direct IO. This does not work if the file is not
> opened for direct IO, yet fcntl(O_DIRECT) is used on the fd later.

This sound like a bug fix for 6.12-rc?

The fix looks good to me:

Reviewed-by: Christoph Hellwig <hch@....de>