From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AB9D4C148; Wed, 24 Sep 2025 18:00:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758736826; cv=none; b=GQ+QYcuYH3/xGKbvGDdiP5d5s7Gv0d1z9UB4brRqYc6+d46AR/v3oS3mcYQt1rk/8fDyl2L6PLoQ630AeWiSFmwHez57WTNOIDJhj4iibSFobj+kdpRP6e+XtsBmJ9VkJ/TbAXJC8xpbfyCSV1u9EjhnIkMiJ6YR5fyy0yM1WhI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758736826; c=relaxed/simple; bh=WgkT21fkoe2xkQsfdSMkINbWg5frLnfYwMcAV8G+cgo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JKD5fr4UEezS0fLVzfx6jGNL9Zf4+x566lbekkQ8NQ94MyafGw3DIqG3GciFmEBCUp25Taw1379OIAN1wMZaFqYZYoDXRwE6H/rPLRBqlHX1v9kd6p/DLmgO4r6gvollrGgTDL4AcTal8ecB9G48577Itn4mZ9uAgwcpgNBnhZQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qfm8C6YX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qfm8C6YX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09F6DC4CEE7; Wed, 24 Sep 2025 18:00:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758736826; bh=WgkT21fkoe2xkQsfdSMkINbWg5frLnfYwMcAV8G+cgo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qfm8C6YXFMmKdFgUiacqksJSr1ZdBXuq7k3UWIjI8tND7IjbJJlQ4DVlxSpk1wu4Y rgj0L0HIQyftnswTHssY4cgx/6TznXAfpmQbltqNxt7wvasQq6XlTMRkACGktqJCSM PEK8fyaM9kGlt6otB225E/ApGEqwe0DLi+Ap1QwyuCLl/AwJ2YpIv4eP72MQ8yXN3v 0J9BSh+CJXT3j8QP2LSpbb6Ns+DPkLv+zeEIUqusmowsOht3aU+qsx13QK40pe8YYT edVE90bcCUgjjwJOdU3N8UHybGt4Yvg9NWMswAQ4IwYq/4cbA4Grq3J1iJy7femdM/ RN1y4KQn2P2ow== Date: Wed, 24 Sep 2025 08:00:25 -1000 From: Tejun Heo To: Andrea Righi Cc: David Vernet , Changwoo Min , linux-kernel@vger.kernel.org, sched-ext@lists.linux.dev Subject: Re: [PATCH 1/7] sched_ext: Use rhashtable_lookup() instead of rhashtable_lookup_fast() Message-ID: References: <20250922013246.275031-1-tj@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: On Wed, Sep 24, 2025 at 10:26:24AM +0200, Andrea Righi wrote: > > IRQ is disabled, so it is in RCU protected region but the lockdep annotation > > isn't happy with it. :-( I'll revert the patch for now. > > We just need this: https://lore.kernel.org/all/aL_4gCJibYMW0J98@gondor.apana.org.au/ > > With this one lockdep is happy. Oh yeah, we can try switching again once that patch lands. Thanks. -- tejun