linux-kernel - Re: [PATCH] btrfs: remove EXTENT_BUFFER_IN

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Message-ID: <20250318160455.GG32661@suse.cz>
Date: Tue, 18 Mar 2025 17:04:55 +0100
From: David Sterba <dsterba@...e.cz>
To: Daniel Vacek <neelx@...e.com>
Cc: Chris Mason <clm@...com>, Josef Bacik <josef@...icpanda.com>,
	David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: remove EXTENT_BUFFER_IN_TREE flag

On Tue, Mar 18, 2025 at 05:00:17PM +0100, David Sterba wrote:
> On Tue, Mar 18, 2025 at 10:54:38AM +0100, Daniel Vacek wrote:
> > This flag is set after inserting the eb to the buffer tree and cleared on
> > it's removal. But it does not bring any added value. Just kill it for good.
> 
> I na similar way the flag EXTENT_BUFFER_READ_ERR is unused (was removed
> in eb/io rework in 046b562b20a5cf ("btrfs: use a separate end_io handler
> for read_extent_buffer").

And EXTENT_BUFFER_READAHEAD, removed by f26c9238602856 ("btrfs: remove
reada infrastructure").