Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751871AbdH3ArN (ORCPT ); Tue, 29 Aug 2017 20:47:13 -0400 Received: from mail-pg0-f42.google.com ([74.125.83.42]:38677 "EHLO mail-pg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751297AbdH3ArL (ORCPT ); Tue, 29 Aug 2017 20:47:11 -0400 From: Sherry Yang To: linux-kernel@vger.kernel.org Cc: tkjos@google.com, maco@google.com Subject: [PATCH 0/6] android: binder: move allocator metadata and add shrinker Date: Tue, 29 Aug 2017 17:46:56 -0700 Message-Id: <20170830004702.120371-1-sherryy@android.com> X-Mailer: git-send-email 2.14.1.342.g6490525c54-goog Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1238 Lines: 25 This patch set moves internal kernel data in the binder driver out of mmap regions that is readable by user space. A shrinker is added to the driver to dynamically manage the memory used by binder transactions and only free pages when the system is under memory pressure. This patch set also adds tests and refactoring in binder allocator. android: binder: Refactor prev and next buffer into a helper function android: binder: Add allocator selftest android: binder: Move buffer out of area shared with user space android: binder: Add global lru shrinker to binder android: binder: Add shrinker tracepoints android: binder: Add page usage in binder stats v3: Fix crash if open is called without followed by mmap. Also add page usage information in binder stats drivers/android/Kconfig | 10 + drivers/android/Makefile | 1 + drivers/android/binder.c | 6 + drivers/android/binder_alloc.c | 395 ++++++++++++++++------ drivers/android/binder_alloc.h | 32 +- drivers/android/binder_alloc_selftest.c | 310 ++++++++++++++++++ drivers/android/binder_trace.h | 55 ++++ 7 files changed, 711 insertions(+), 98 deletions(-)