From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=95.215.58.27 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793952000; b=Cn+SOrqD6qXF23tL322w5je0KnRzpUmmiUS3N8L9NXO0KRmwy6kg8i7Pua1FA/j/2lhC Mnu5/vadGc/Ap1v73+UChMYT+H/rda0QdNI3yzLQ9kBS6gc3BQATaQMfXUO80ioQiKMUS UhT3MrE02HkyYiihAiiIahF0Ks9TR9jANKPiFWgL2y3Wysv9kQQYmn6FsTEL1kTV1jpoJ A3JXnEaHcvi3ma6teIfJ6Iq0zc04HUB9/K1HYi5YlRUXqrKXaMkAWKIcN8RpCApFfg1Wg aEHnLdm/1dU7i7kB9dbR/A2s8A8aQW/MRYoQXc/XAPsqPbQqNlfsgQIkMqEjZT5ZEcA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793952000; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=qdnMAlZZHT0XekQPrSCiPCqqcTykoSAZA6qRfBxzlM4=; b=5HLzXI8aquzX0QyyzFk2A5K3MDfetzXDSLiazf+p3+Q/BVGYh5h4+K0m/UOXyrBlCCEo D6GIEpWepWQS9GWCkhe/zzcyyVvaQFffpTN7GkJ+NCybk7hNGnzMhXs9ZL9q1D9il1tR3 mE0Ke9Vs8EyLeSMiplios72+WeuIvyiIFmVoE243+W6sr8tLKpHHIfjC95tGhM1tvCKc1 HFWP6T+g4jJkPOyZHQxZ1mNmr9RWFv7+kR1MrgJJ7w+GNJwj3ISJ1RN0ZS282L7Js3zzI EOLAHkk/XJ2XcAr287Hwf63qYDLqPteYlfO9xkR5qvx5KJ9ho6bmkWJ+nyyIso4T9Sw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=AAfP9Y7e; arc=none smtp.remote-ip=95.215.58.27 Received: from mta1.migadu.com (out-27.mta1.migadu.com [95.215.58.27]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 912C1606EEB2 for ; Fri, 6 Nov 2026 07:59:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 912C1606EEB2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=AAfP9Y7e X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=kjWEZaRnpbQPyxgJ4wJyDqlnc6ape3Q8i+3y7DTnhuw=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1793951997; v=1; x=1794556797; b=AAfP9Y7ezAT+sAnUC32UUWcy5UZR/XKOXWl8ExQBF25yRlP0fkljM3aoDoehs461HTMf36Wn bIVUEki97elFAjMFyOFqQKdIzB58V36IgSuzy243HkUt9mAqr3hGiV3LUyFyi0jfxSokBPbhQUV MuveaTZ+xfdAkasVW7xqg1wg= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 8a365bbfc61020ef; Fri, 06 Nov 2026 07:59:56 +0000 X-Mizu-Trace-ID: 8a365bbfc61020ef X-Migadu-Flow: FLOW_OUT Date: Fri, 6 Nov 2026 15:59:45 +0800 From: Hao Li To: Harry Yoo Cc: Zhan Xusheng , vbabka@kernel.org, urezki@gmail.com, paulmck@kernel.org, qiang.zhang@linux.dev, akpm@linux-foundation.org, cl@gentwo.org, rientjes@google.com, roman.gushchin@linux.dev, linux-mm@kvack.org, rcu@vger.kernel.org, linux-kernel@vger.kernel.org, zhanxusheng@xiaomi.com Subject: Re: [PATCH 1/2] mm/slab: restore the rcutree. prefix of the kvfree_rcu parameters Message-ID: References: <20261028134647.3176080-1-zhanxusheng1024@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon, Nov 02, 2026 at 02:33:43PM +0000, Harry Yoo wrote: > I adjusted my feedback. End result: > > mm/slab: restore the rcutree. prefix of the kvfree_rcu parameters > > The move of kvfree_rcu() to mm/slab_common.c dropped the "rcutree." > MODULE_PARAM_PREFIX, so rcu_min_cached_objs and > rcu_delay_page_cache_fill_msec became slab_common.* and the documented > rcutree.* names are silently ignored. Restore the prefix; the > slab_common.* names, never documented, stop working. > > Fixes: bbe658d65802 ("mm/slab: Move kvfree_rcu() into SLAB") > Cc: stable@vger.kernel.org > Signed-off-by: Zhan Xusheng > Reviewed-by: Harry Yoo (Meta) > Link: https://patch.msgid.link/20261028134647.3176080-1-zhanxusheng1024@gmail.com > Signed-off-by: Harry Yoo (Meta) Reviewed-by: Hao Li -- Thanks, Hao