linux-ext4 - Re: [PATCH 3/6] fs: sort out the fallocate mode vs flag mess

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Message-ID: <20240828040526.GB30409@lst.de>
Date: Wed, 28 Aug 2024 06:05:26 +0200
From: Christoph Hellwig <hch@....de>
To: "Darrick J. Wong" <djwong@...nel.org>
Cc: Christoph Hellwig <hch@....de>, Christian Brauner <brauner@...nel.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Chandan Babu R <chandan.babu@...cle.com>,
	Brian Foster <bfoster@...hat.com>, Jens Axboe <axboe@...nel.dk>,
	Jan Kara <jack@...e.cz>, Theodore Ts'o <tytso@....edu>,
	linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-xfs@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 3/6] fs: sort out the fallocate mode vs flag mess

On Tue, Aug 27, 2024 at 07:55:02AM -0700, Darrick J. Wong wrote:
> For a brief moment I wondered if it were possible to set more than one
> mode bit but it looks like none of the implementations support that kind
> of wackiness (e.g. COLLAPSE|INSERT_RANGE for magicks!) so we're good:

Yes, we check for all possible mode combinations and reject them already,
just in had to read an not extensible way.