From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B015C433F5 for ; Mon, 3 Oct 2022 17:25:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229839AbiJCRZn (ORCPT ); Mon, 3 Oct 2022 13:25:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229792AbiJCRZf (ORCPT ); Mon, 3 Oct 2022 13:25:35 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 25C4419C23 for ; Mon, 3 Oct 2022 10:25:25 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 9CB93B811C2 for ; Mon, 3 Oct 2022 17:25:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BEB71C433C1; Mon, 3 Oct 2022 17:25:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664817922; bh=jHT0rusEQYJdwxpkBANcSQRZVGu7lBKag25lZ5m2Des=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=bk8K0MGX3oWNVxRr5RD+giNmBU/TrsRabHkUi/QTed/FZRkwLmIlj70SJJZu4rlwf AB+riajVZB9EScdIZAW0aIWUosPrHsei1fqrNligEgmVIXEAeNVs19SCP1wrLjDYBl 5sLPu2/HXuWGr73Zcb1TWY59FKblbTa+QhNtzZr+TYEbiLOqI1F4Bp7c23gx676dS3 iCUXdDV/sksJgovu2+d+hi76bade/BQJQeB25aEm3juJ8e3DnAiFdoEP22KeOQfP7l RjaDMWPE0KxUMlx61mfnLdLeOl+2F8SL7mvJ0xYUAAlz6j2R370lJ5QI0LLUGGEFdQ rRqCbx2rngWyA== Date: Mon, 3 Oct 2022 10:25:20 -0700 From: Jakub Kicinski To: "Jason A. Donenfeld" Cc: Eric Dumazet , "David S . Miller" , Paolo Abeni , netdev , Eric Dumazet , Christophe Leroy , Willy Tarreau Subject: Re: [PATCH net-next] once: add DO_ONCE_SLOW() for sleepable contexts Message-ID: <20221003102520.75fc51b4@kernel.org> In-Reply-To: References: <20221001205102.2319658-1-eric.dumazet@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sun, 2 Oct 2022 00:44:28 +0200 Jason A. Donenfeld wrote: > So instead, why not just branch on whether or not we can sleep here, if > that can be worked out dynamically? IDK if we can dynamically work out if _all_ _possible_ callers are in a specific context, can we? > If not, and if you really do need two sets of macros and functions, > at least you can call the new one something other than "slow"? Maybe > something about being _SLEEPABLE() instead? +1 for s/SLOW/SLEEPABLE/. I was about to suggest s/SLOW/TASK/. But I guess it's already applied..