From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752657AbaA2Xsk (ORCPT ); Wed, 29 Jan 2014 18:48:40 -0500 Received: from mail-pb0-f52.google.com ([209.85.160.52]:50018 "EHLO mail-pb0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752212AbaA2Xsi (ORCPT ); Wed, 29 Jan 2014 18:48:38 -0500 From: Sebastian Capella To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-pm@vger.kernel.org, linaro-kernel@lists.linaro.org, patches@linaro.org Subject: [PATCH v4 0/2] PM / Hibernate: sysfs resume Date: Wed, 29 Jan 2014 15:48:22 -0800 Message-Id: <1391039304-3172-1-git-send-email-sebastian.capella@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Patchset related to hibernation resume: - enhancement to make the use of an existing resume file more general - add kstrimdup function which trims and duplicates a string Both patches are based on the 3.13 tag. This was tested on a Beaglebone black with partial hibernation support, and compiled for x86_64. [PATCH v4 1/2] mm: add kstrimdup function include/linux/string.h | 1 + mm/util.c | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+) Adds the kstrimdup function to duplicate and trim whitespace from a string. This is useful for working with user input to sysfs. [PATCH v4 2/2] PM / Hibernate: use name_to_dev_t to parse resume kernel/power/hibernate.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) Use name_to_dev_t to parse the /sys/power/resume file making the syntax more flexible. It supports the previous use syntax and additionally can support other formats such as /dev/devicenode and UUID= formats. By changing /sys/debug/resume to accept the same syntax as the resume=device parameter, we can parse the resume=device in the initrd init script and use the resume device directly from the kernel command line. Changes in v4: -------------- * Dropped name_to_dev_t rework in favor of adding kstrimdup * adjusted resume_store Changes in v3: -------------- * Dropped documentation patch as it went in through trivial * Added patch for name_to_dev_t to support directly parsing userspace buffer Changes in v2: -------------- * Added check for null return of kstrndup in hibernate.c Thanks, Sebastian