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 A04D4C4332F for ; Thu, 15 Dec 2022 21:44:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229658AbiLOVom (ORCPT ); Thu, 15 Dec 2022 16:44:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229636AbiLOVok (ORCPT ); Thu, 15 Dec 2022 16:44:40 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC8B15C76F for ; Thu, 15 Dec 2022 13:44:39 -0800 (PST) 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 78E8BB81CB1 for ; Thu, 15 Dec 2022 21:44:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D19FDC433D2; Thu, 15 Dec 2022 21:44:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1671140677; bh=i3iXc9o/3AlLp69RTaZJu2vMFQ9xRL+3fvgRIgYWcFc=; h=From:To:Cc:Subject:Date:From; b=pZpAfgQ/twZQV6+jQpKIXE8HjT/kZt1dgFrFDQt0cCnyxDg+RB0VtA41sBEFWRSr5 axmKfopmUlFgtVN3aYJEmC8n0bMkMdWf/sBRAGKJNUe6zxcvazQiuDeF0JnatMW+lB krkxidQNrFbRSPfbb6QaJhu0w0alo/p41BU4UrT13DtXo0yRlsCwK7iQP79Bri9kY2 nqqjdLFW1J/LOQo5wXfNCxGX87st4jR5o85CokVqMECmQq9G19/45OgbVYVYoHzGzn U59jFIvUAGNr19WfJ/CAEaqo1GBg1oRYUxMflYNetAf6GvHuoODJsplbbK/+XueMxa 8bXODQMD+izJQ== From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: bpf@vger.kernel.org, Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Florent Revest Subject: [PATCHv3 bpf-next 0/3] bpf: Get rid of trace_printk_lock Date: Thu, 15 Dec 2022 22:44:27 +0100 Message-Id: <20221215214430.1336195-1-jolsa@kernel.org> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org hi, In the last revision Andrii suggested we could have the buffer provided by bpf_bprintf_prepare [1]. It's bit more changes but it looks like more compact solution. v3 changes: - added struct to hold return data in bpf_bprintf_prepare - fix bug in bpf_bprintf_cleanup - adjust printk helpers to use new bpf_bprintf_prepare data argument thanks, jirka [1] https://lore.kernel.org/bpf/Y5pgxd9+G2wHROlp@krava/T/#m4b256e9138cdb37cd4477571f32e47a960aad317 --- Jiri Olsa (3): bpf: Add struct for bin_args arg in bpf_bprintf_prepare bpf: Do cleanup in bpf_bprintf_cleanup only when needed bpf: Remove trace_printk_lock include/linux/bpf.h | 12 ++++++++++-- kernel/bpf/helpers.c | 67 +++++++++++++++++++++++++++++++++++++++---------------------------- kernel/bpf/verifier.c | 3 ++- kernel/trace/bpf_trace.c | 56 +++++++++++++++++++++++++++----------------------------- 4 files changed, 78 insertions(+), 60 deletions(-)