Messages in this thread | | | From | "Zhuo, Qiuxu" <> | Subject | RE: [PATCH 1/1] rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale | Date | Thu, 16 Mar 2023 13:53:43 +0000 |
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> From: Joel Fernandes <joel@joelfernandes.org> > Sent: Thursday, March 16, 2023 9:29 PM > To: Zhuo, Qiuxu <qiuxu.zhuo@intel.com> > Cc: paulmck@kernel.org; Frederic Weisbecker <frederic@kernel.org>; Josh > Triplett <josh@joshtriplett.org>; Neeraj Upadhyay > <quic_neeraju@quicinc.com>; Davidlohr Bueso <dave@stgolabs.net>; Steven > Rostedt <rostedt@goodmis.org>; Mathieu Desnoyers > <mathieu.desnoyers@efficios.com>; Lai Jiangshan > <jiangshanlai@gmail.com>; rcu@vger.kernel.org; linux- > kernel@vger.kernel.org > Subject: Re: [PATCH 1/1] rcu/rcuscale: Stop kfree_scale_thread thread(s) > after unloading rcuscale > > > > On Mar 16, 2023, at 9:17 AM, Zhuo, Qiuxu <qiuxu.zhuo@intel.com> wrote: > > > > > >> > >> From: Paul E. McKenney <paulmck@kernel.org> [...] > >>>> > >>>> How about to pull the rcu_scale_cleanup() function after > >> kfree_scale_cleanup(). > >>>> This groups kfree_* functions and groups rcu_scale_* functions. > >>>> Then the code would look cleaner. > >>>> So, do you think the changes below are better? > >>> > >>> IMHO, I don't think doing such a code move is better. Just add a new > >>> header file and declare the function there. But see what Paul says > >>> first. > >> > >> This situation is likely to be an early hint that the kvfree_rcu() > >> testing should be split out from kernel/rcu/rcuscale.c. > > > > Another is that it's a bit expensive to create a new header file just > > for eliminating a function declaration. ;-) > > What is so expensive about new files? It is a natural organization structure. > > > So, if no objections, I'd like to send out the v2 patch with the updates below: > > > > - Move rcu_scale_cleanup() after kfree_scale_cleanup() to eliminate the > > declaration of kfree_scale_cleanup(). Though this makes the patch bigger, > > get the file rcuscale.c much cleaner. > > > > - Remove the unnecessary step "modprobe torture" from the commit > message. > > > > - Add the description for why move rcu_scale_cleanup() after > > kfree_scale_cleanup() to the commit message. > > Honestly if you are moving so many lines around, you may as well split it out > into a new module. > The kfree stuff being clubbed in the same file has also been a major > annoyance.
I'm OK with creating a new kernel module for these kfree stuffs, but do we really need to do that?
@paulmck, what's your suggestion for the next step?
> - Joel > > > > Thanks! > > -Qiuxu > > > >> [...]
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