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Date: Mon, 20 Jul 2026 11:59:03 +0200
From: Greg KH <gregkh@linuxfoundation.org>
To: Liew Rui Yan <aethernet65535@gmail.com>
Cc: SJ Park <sj@kernel.org>, damon@lists.linux.dev, linux-mm@kvack.org,
	stable@vger.kernel.org, Yikai Zhao <yikai@z1k.dev>
Subject: Re: [PATCH] mm/damon/reclaim: fix typo in damon_reclaim_timer_fn()
Message-ID: <2026072041-rearview-unselect-3f92@gregkh>
References: <20260720094708.243937-1-aethernet65535@gmail.com>
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In-Reply-To: <20260720094708.243937-1-aethernet65535@gmail.com>

On Mon, Jul 20, 2026 at 05:47:08PM +0800, Liew Rui Yan wrote:
> Commit 2f54908fae211 ("mm/damon/reclaim: detect and use fresh enabled
> and kdamond_pid values") introduced a typo in damon_reclaim_timer_fn()
> where '!=' was used instead of '==' (unlike damon_lru_sort_timer_fn()).
> This caused damon_reclaim to return early during the delayed work,
> breaking early boot parameter configuration like
> 'damon_reclaim.enabled=Y'.
> 
> Fix this by changing '!=' to '=='.
> 
> Fixes: 2f54908fae21 ("mm/damon/reclaim: detect and use fresh enabled and kdamond_pid values")

Why is this a stable-only patch?  Did something go wrong with the
backport of this commit that is not in the upstream version?

thanks,

greg k-h