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 X-Spam-Level: X-Spam-Status: No, score=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AF72C3A59F for ; Thu, 29 Aug 2019 21:18:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 155F9208C2 for ; Thu, 29 Aug 2019 21:18:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="DScvmQU+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728109AbfH2VSa (ORCPT ); Thu, 29 Aug 2019 17:18:30 -0400 Received: from mail-vk1-f202.google.com ([209.85.221.202]:57012 "EHLO mail-vk1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726935AbfH2VS3 (ORCPT ); Thu, 29 Aug 2019 17:18:29 -0400 Received: by mail-vk1-f202.google.com with SMTP id r17so1850553vkd.23 for ; Thu, 29 Aug 2019 14:18:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=BW1c7IRnWjJoxQBtVPXO6COaVAzbUDcupsRP3+lK6WY=; b=DScvmQU+89L+hniqEK44TU04uVyqUiGLL9u5xg2ckht5a7CYd7E2LbeJo2RTqqmNN2 ZRhaWXhwPL7tKn1cEgAFie5GiGnaKpFKFg7SmCIkGdQekr4q98LOlV4fMxG02PK9uHZC WoctCmJJGa70MK8ZZ8Yfnt/l05IgEzhqPuPhAoYrkOSF9AUUOhaxFwWJvtSGuxBCCHtP U1fE+DuLVt/48T4ldIdVCUv0RsvyvH8dPdH4mf9fwsVUAKa/eTGbKq5SspOi6yA43ngA QZ6+Jkrm7kE1CKneugmB5cVCaLDdPf5wlBnxZhkDwjN+uiCs23wBI3bg+qsQeY9EVGKG zqEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=BW1c7IRnWjJoxQBtVPXO6COaVAzbUDcupsRP3+lK6WY=; b=Za/ck7xguDhipcx0COq1sVsCYJkfRFZLlTsxE7Q+q4o9vzTOC9C+48ek6YfShYFaFJ pY5JDgyzIwTcyQTHOGjgVHiFkHHu4eiUVW0rxN4cZrulyMceH80XMVP7i+u5lTzh1f5V bP7q+Z4CR/q2YaO0vftq6L0634h1soT6c5O85lgl7mFKradkJD39KEX5C/a2dzP3YFbW YSj+Q4TvxJWf1nEvNhjOm4NBjcYGTqW2kaXhgjf062Ns3NIOKuuAKe3zXrWD70fPVWdg moOkny3BFuKLjrJFv/r0VbLEahJGVt4ZD8r4vxdtnyxBH4AcIlgz/KDhKJ7J9tDwiuIx DyiQ== X-Gm-Message-State: APjAAAXjA7PHv8XOs5jF/xMmzt5dY4oVVIHWuISTXPFqKYpP13ic8CMG NEgBvbk7MfIL25RzE4qfLtF4PTJihVY= X-Google-Smtp-Source: APXvYqyu46l4onHXaIOlHYncz+2ngOsHkdmb/+FxKLyBUQd7IXHI/mZdOzHaJoQ1YcZ8j38WtB/nO45BCts= X-Received: by 2002:ab0:6648:: with SMTP id b8mr5538718uaq.99.1567113508553; Thu, 29 Aug 2019 14:18:28 -0700 (PDT) Date: Thu, 29 Aug 2019 14:18:08 -0700 Message-Id: <20190829211812.32520-1-hridya@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.23.0.187.g17f5b7556c-goog Subject: [PATCH v2 0/4] Add binder state and statistics to binderfs From: Hridya Valsaraju To: Greg Kroah-Hartman , "=?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?=" , Todd Kjos , Martijn Coenen , Joel Fernandes , Christian Brauner , devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Cc: kernel-team@android.com, Hridya Valsaraju Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently, the only way to access binder state and statistics is through debugfs. We need a way to access the same even when debugfs is not mounted. These patches add a mount option to make this information available in binderfs without affecting its presence in debugfs. The following debugfs nodes will be made available in a binderfs instance when mounted with the mount option 'stats=global' or 'stats=local'. /sys/kernel/debug/binder/failed_transaction_log /sys/kernel/debug/binder/proc /sys/kernel/debug/binder/state /sys/kernel/debug/binder/stats /sys/kernel/debug/binder/transaction_log /sys/kernel/debug/binder/transactions Hridya Valsaraju (4): binder: add a mount option to show global stats binder: Add stats, state and transactions files binder: Make transaction_log available in binderfs binder: Add binder_proc logging to binderfs drivers/android/binder.c | 95 ++++++----- drivers/android/binder_internal.h | 84 ++++++++++ drivers/android/binderfs.c | 255 ++++++++++++++++++++++++++---- 3 files changed, 362 insertions(+), 72 deletions(-) -- 2.23.0.187.g17f5b7556c-goog