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Date: Sun, 22 Jan 2023 15:14:47 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Eric Whitney <enwlinux@gmail.com>
Cc: stable@vger.kernel.org, patches@lists.linux.dev,
	Theodore Tso <tytso@mit.edu>, stable@kernel.org,
	Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 4.19 499/521] ext4: fix delayed allocation bug in
 ext4_clu_mapped for bigalloc + inline
Message-ID: <Y81E17kMowYd3naC@kroah.com>
References: <20230116154847.246743274@linuxfoundation.org>
 <20230116154909.507815847@linuxfoundation.org>
 <Y8mAe1SlcLD5fykg@debian-BULLSEYE-live-builder-AMD64>
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In-Reply-To: <Y8mAe1SlcLD5fykg@debian-BULLSEYE-live-builder-AMD64>

On Thu, Jan 19, 2023 at 12:40:11PM -0500, Eric Whitney wrote:
> Hi:
> 
> I recommend not backporting this patch or the other three patches apparently
> intended to support it to 4.19 stable.  All these patches are related to
> ext4's bigalloc feature, which was experimental as of 4.19 (expressly noted by
> contemporary versions of e2fsprogs) and also suffered from a number of bugs.
> A significant number of additional patches that were applied to 5.X kernels
> over time would have to be backported to 4.19 for the patch below to function
> correctly. It's really not worth doing that given bigalloc's experimental
> status as of 4.19 and the very rare combination of the bigalloc and inline
> features.

All now reverted, thanks!

greg k-h