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bh=kzrfRXAiX4Hu4kXoYmi1n5/DV4H+5STSh8/UbIu5Gxg=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Eme9M5IgGejVre/xameqf5XfphSy8SLE1OGq9UXSM2PvQxQlY68XQY5/VlVF850I1 HC8nvoVOlXpHITQyzN4K6t1moXiiPIy0d64x6Rlr1pEJfRAIy8FRJWuhhStZrDyEEz svvr/niVKnQZ1Q/pl76w/WqHtH4tVESOMvezBzMs= Date: Mon, 20 Jul 2026 11:59:03 +0200 From: Greg KH To: Liew Rui Yan Cc: SJ Park , damon@lists.linux.dev, linux-mm@kvack.org, stable@vger.kernel.org, Yikai Zhao 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260720094708.243937-1-aethernet65535@gmail.com> X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 75658C0003 X-Stat-Signature: br74tiqd8yufa1kusun33fxm37s5rtje X-HE-Tag: 1784541553-341834 X-HE-Meta: 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 5yU/vUzi Eu/nDwcvXw1Pb874eSWEdZxdZ0vN6WkcMkSxH4CWB6TThEkLLCuOg7bsucJeG10h2a6rY4Wham8TiDHXSr9aaHCIsSfHgMtPwOpTeZozmhkrDmhjTLGGculWiz+2UbdidAEfK1A2l5l6dwWA7WIWWgl0o34FGuPqukP2VrOpx1Uz9z24tj1E7YuEL6+J0w14GojCR7MAgAdVGCoIrB/F14Zi9AIYP3F9moWv6WL3ULt1X257ppVepdLzzBbnbIqCe09sdjD3nnekG7u7uKmGH36zcrQhuHF8SrTToM/i5ffgb4xu16sdZkjp1fqUE/VUDfzfFsW0refqBI3HBBMMLZkQL/tB4eQBWhlCtLPt8tiMKcmj9aLhauVxt2g== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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