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Groups > linux.kernel > #1346286
| From | "Rafael J. Wysocki" <rjw@rjwysocki.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [patch 10/20] cpu/hotplug: Make target state writeable |
| Date | 2016-03-01 03:00 +0100 |
| Message-ID | <r7HLs-2tR-9@gated-at.bofh.it> (permalink) |
| References | <r6vCG-7sv-3@gated-at.bofh.it> <r7aZc-3Z9-9@gated-at.bofh.it> <r7yoP-4YQ-33@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Monday, February 29, 2016 04:49:24 PM Thomas Gleixner wrote: > On Sun, 28 Feb 2016, Thomas Gleixner wrote: > > > > Understood. I'll fix that thing up so that won't happen and I put it on the > > list of things to look at deeper. > > The below delta patch should do what you need, right? Yup, thanks! Rafael > 8<------------- > > --- a/kernel/cpu.c > +++ b/kernel/cpu.c > @@ -1461,6 +1461,11 @@ static ssize_t write_cpuhp_target(struct > if (target != CPUHP_OFFLINE && target != CPUHP_ONLINE) > return -EINVAL; > #endif > + > + ret = lock_device_hotplug_sysfs(); > + if (ret) > + return ret; > + > mutex_lock(&cpuhp_state_mutex); > sp = cpuhp_get_step(target); > ret = !sp->name || sp->cant_stop ? -EINVAL : 0; > @@ -1472,6 +1477,8 @@ static ssize_t write_cpuhp_target(struct > ret = do_cpu_up(dev->id, target); > else > ret = do_cpu_down(dev->id, target); > + > + unlock_device_hotplug(); > return ret ? ret : count; > }
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[patch 10/20] cpu/hotplug: Make target state writeable Thomas Gleixner <tglx@linutronix.de> - 2016-02-26 19:50 +0100
Re: [patch 10/20] cpu/hotplug: Make target state writeable "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-27 00:50 +0100
Re: [patch 10/20] cpu/hotplug: Make target state writeable Thomas Gleixner <tglx@linutronix.de> - 2016-02-27 08:50 +0100
Re: [patch 10/20] cpu/hotplug: Make target state writeable "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-02-27 15:50 +0100
Re: [patch 10/20] cpu/hotplug: Make target state writeable Thomas Gleixner <tglx@linutronix.de> - 2016-02-28 16:00 +0100
Re: [patch 10/20] cpu/hotplug: Make target state writeable Thomas Gleixner <tglx@linutronix.de> - 2016-02-29 17:00 +0100
Re: [patch 10/20] cpu/hotplug: Make target state writeable "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-03-01 03:00 +0100
[tip:smp/hotplug] cpu/hotplug: Make target state writeable tip-bot for Thomas Gleixner <tipbot@zytor.com> - 2016-03-01 21:00 +0100
Re: [tip:smp/hotplug] cpu/hotplug: Make target state writeable Peter Zijlstra <peterz@infradead.org> - 2016-03-02 13:50 +0100
Re: [tip:smp/hotplug] cpu/hotplug: Make target state writeable Thomas Gleixner <tglx@linutronix.de> - 2016-03-02 21:00 +0100
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