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Date: Thu, 11 Apr 2024 11:52:42 +0200
From: Greg KH <gregkh@linuxfoundation.org>
To: Li Lingfeng <lilingfeng3@huawei.com>
Cc: stable@vger.kernel.org, mpatocka@redhat.com,
	torvalds@linux-foundation.org, tglx@linutronix.de,
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	lilingfeng@huaweicloud.com
Subject: Re: [PATCH 6.6] Revert "dm-crypt, dm-verity: disable tasklets"
Message-ID: <2024041103-reputable-bobsled-585f@gregkh>
References: <20240411091539.361470-1-lilingfeng3@huawei.com>
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In-Reply-To: <20240411091539.361470-1-lilingfeng3@huawei.com>

On Thu, Apr 11, 2024 at 05:15:39PM +0800, Li Lingfeng wrote:
> This reverts commit 5735a2671ffb70ea29ca83969fe01316ee2ed6fc which is
> commit 0a9bab391e336489169b95cb0d4553d921302189 upstream.
> 
> Tasklet is thought to cause memory corruption [1], so it was disabled in
> dm-crypt and dm-verity. However, memory corruption may not happen since
> cc->io_queue is created without WQ_UNBOUND [2].
> Revert commit 5735a2671ffb ("dm-crypt, dm-verity: disable tasklets") to
> bring tasklet back.
> 
> [1] https://lore.kernel.org/all/d390d7ee-f142-44d3-822a-87949e14608b@suse.de/T/
> [2] https://lore.kernel.org/all/4d331659-badd-749d-fba1-271543631a8a@huawei.com/
> 
> Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
> ---
>  drivers/md/dm-crypt.c         | 38 +++++++++++++++++++++++++++++++++--
>  drivers/md/dm-verity-target.c | 26 ++++++++++++++++++++++--
>  drivers/md/dm-verity.h        |  1 +
>  3 files changed, 61 insertions(+), 4 deletions(-)

What is the commit id of this in Linus's tree?  And why only 6.6.y?

thanks,

greg k-h