From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 67F894DEC3B for ; Fri, 9 Oct 2026 11:52:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791546778; cv=none; b=gdJaAz7UdBl/xtmbwWOX4EvZv9iFOs/WRQQf758T4/mOWKctH+YVj49S/fR/Oja6GJLgSE4/vDbLdvnOidBOKMw8AM3K8NtEXbKzgxneskFhM2O/tc1Xr5MrPle7Kz7kwkP6XGjm6SztT83mtZ+LFxiP9O8xghns+LA0dXPajks= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791546778; c=relaxed/simple; bh=MPaxLapLIH/2EyNGK1S6Kb5H2+5cvD20ZEOmkko0hkA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=h7hhrjZXh5Djr3eI7UPsQjco6nbVgCiuJDSP3gVlk4a+VVL3OxkBCCVtGikeWZDbzcwoUdmmvbBDkLvTPnzfmTnW7IEBFsHABRlTTLrKKjR3bKq3hGoSWxieZusWRwRPPfQGKpnotNl5W+HbsfPsUvhUlRIZNKLSxDuQmEBdTy4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EmmMOlTu; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EmmMOlTu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D24A1F000FF; Fri, 9 Oct 2026 11:52:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791546768; bh=MPaxLapLIH/2EyNGK1S6Kb5H2+5cvD20ZEOmkko0hkA=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=EmmMOlTuplEeuow4t4xT6vfDJs++UDA+9Iy3DZRwR/KKje4t4byk3Is7Wuf7f9y0i AhQfbE2HtbpAby4CLjECGQjpZUOqavTotVpsRRPVQmkKj2Q53FauYRAvjcpwcMvpSn f0pp1MR/dxefBD0cDo7mkpkQIID03DjVhXDxJwt3lxy6n0RsjioFcvXPPVgdEFSrlp aQ1zsm2o63O3JSFtdNCUCJ79fA4aN61tex2rnJ+6uF7BZ62Xb4BqsVgDOVM7q8JG9i KX3TU1JnBAax+VugXLxZxKa1fD+Jy+AMbxaLmniuXMCmlanA21ucKPi7HbeOsXbk2M w1E7vTentQszg== Date: Fri, 9 Oct 2026 12:52:43 +0100 From: "Lorenzo Stoakes (ARM)" To: "David Hildenbrand (Arm)" Cc: Li Zhe , "Jose A. Perez de Azpillaga" , akpm@linux-foundation.org, muchun.song@linux.dev, osalvador@suse.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/hugetlb: avoid recursive i_mmap_rwsem in PMD sharing Message-ID: References: <20260930064308.58159-1-lizhe.67@bytedance.com> <9a7c026e-f5f2-40e0-84aa-919c988cc136@bytedance.com> <2b4571c5-8e51-4c91-9d88-11929f200875@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2b4571c5-8e51-4c91-9d88-11929f200875@kernel.org> On Mon, Oct 05, 2026 at 11:25:01AM +0200, David Hildenbrand (Arm) wrote: > > David mentioned that Oscar was planning to send a proper fix for this > > issue, so I will wait for that patch instead of moving forward with this > > trylock fallback approach. > @Lorenzo, if Oscar is too busy, I guess we can paste the overall idea for the > fix here as well (publicly)? Yeah I don't see why not! I don't think there's anything that needs to be private here. -- Cheers, Lorenzo