From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul E. McKenney" Subject: Re: [GIT RFC PULL rcu/urgent] Prevent Kconfig from asking pointless questions Date: Tue, 21 Apr 2015 08:54:13 -0700 Message-ID: <20150421155413.GG5561@linux.vnet.ibm.com> References: <20150419020541.GA5561@linux.vnet.ibm.com> <20150420113554.598e503f@sluggy> <20150420170902.GU5561@linux.vnet.ibm.com> <20150420204049.GF24936@home.goodmis.org> <20150420211504.GW5561@linux.vnet.ibm.com> <20150420165007.295f3fe0@sluggy> <20150421012258.GZ5561@linux.vnet.ibm.com> <20150421091232.6c66ba7b@gandalf.local.home> <20150421150122.GC5561@linux.vnet.ibm.com> <20150421115027.05b562cd@gandalf.local.home> Reply-To: paulmck@linux.vnet.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Clark Williams , Ingo Molnar , linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, a.p.zijlstra@chello.nl, akpm@linux-foundation.org, linux-rt-users@vger.kernel.org To: Steven Rostedt Return-path: Content-Disposition: inline In-Reply-To: <20150421115027.05b562cd@gandalf.local.home> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org On Tue, Apr 21, 2015 at 11:50:27AM -0400, Steven Rostedt wrote: > On Tue, 21 Apr 2015 08:01:22 -0700 > "Paul E. McKenney" wrote: > > > > > Seem reasonable? > > > > > > Does chrt override the kthread_prio at run time? If so, then great. > > > Otherwise, the sysadmin should still have a way to control their > > > priorities of kernel threads (with few exceptions like the migration > > > thread). > > > > Yep, RCU sets the prios only at boot time, so if they are set differently > > at runtime, they should stay set differently. Unless chrt refuses to > > work on kthreads or something. ;-) > > Great! This all sounds reasonable to me :-) OK, will proceed as planned, then! Thanx, Paul