From mboxrd@z Thu Jan 1 00:00:00 1970 From: skannan@codeaurora.org (Saravana Kannan) Date: Thu, 23 Oct 2014 14:41:20 -0700 Subject: [PATCH v4 0/5] Simplify hotplug/suspend handling In-Reply-To: References: <1405464473-3916-1-git-send-email-skannan@codeaurora.org> <1406250448-470-1-git-send-email-skannan@codeaurora.org> Message-ID: <54497600.4000904@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 10/16/2014 01:53 AM, Viresh Kumar wrote: > On 25 July 2014 06:37, Saravana Kannan wrote: >> Series of patchs to simplify policy/sysfs/kobj/locking handling across >> suspend/resume >> >> The following have been tested so far on a 2x2 cluster environment: >> - Boot with 2 cpus and no cpufreq driver. >> - mod probe driver and see cpufreq sysfs files show up only for the 1st cluster. >> - Online the rest of the 2 CPUs and have files show up correctly. >> - rmmod the driver and see the files go away. >> - modprobe again (or back and forth multiples times) and see it work. >> - suspend/resume works as expected. >> - When a cluster is offline, all read/writes to its sysfs files return an error >> >> v4 >> - Split it up into smaller patches >> - Will handle physical CPU removal correctly >> - Fixed earlier mistake of deleting code under !recover_policy >> - Dropped some code refactor that reuses a lot of code between add/remove >> - Dropped fix for exiting hotplug race with cpufreq driver probe/rmmod >> - Dropped changes will come later once this series is acked. > > Hi Saravana, > > Any updates on this? We might need some of this soon or should somebody > else start working on this ? > Hey, Sorry for the delay. Got side tracked with some commercial stuff. I'm still invested in finishing this up. I'll try to send out something within a week. I did notice (didn't read mych) the "Locking issues with cpufreq and sysfs" thread. I think my patches should side step most of it. Thanks, Saravana -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation