Re: [PATCH] sysctl: Merge adjacent CONFIG_TREE_RCU blocks

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On Wed, May 18, 2022 at 08:57:20PM -0700, Paul E. McKenney wrote:
> On Wed, May 18, 2022 at 08:25:41PM -0700, Luis Chamberlain wrote:
> > On Tue, May 17, 2022 at 08:57:37AM -0700, Paul E. McKenney wrote:
> > > On Tue, May 17, 2022 at 05:07:31PM +0200, Geert Uytterhoeven wrote:
> > > > There are two adjacent sysctl entries protected by the same
> > > > CONFIG_TREE_RCU config symbol.  Merge them into a single block to
> > > > improve readability.
> > > > 
> > > > Use the more common "#ifdef" form while at it.
> > > > 
> > > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> > > 
> > > If you would like me to take this, please let me know.  (The default
> > > would be not the upcoming merge window, but the one after that.)
> > > 
> > > If you would rather send it via some other path:
> > > 
> > > Reviewed-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
> > 
> > The one that that occurs to me is that while at it, Geert,
> > can you also just then follow up with a patch 2/2 which then
> > moves the sysctl out to the respective RCU code. If you look
> > at linux-nxt kernel/sysctl.c is getting modified heavily with
> > time to avoid stuffing everyone's sysctls there because this
> > creates merge conflicts, make the file hard to read, and we
> > have ways to split this.
> > 
> > This work started about 2 kernel releases ago and is ongoing,
> > it may take 3-4 more before kernel/sysctl.c stop being a kitchen
> > sink of everyone's syctls.
> > 
> > Paul, I've been collecting these modifications in a sysctl-next
> > tree to avoid merge conflicts, and I try to not do to much per
> > kernel release. If you like I can take this in for that tree
> > as well, but as you noted, this would be for the next release,
> > not the current one which we'll soon enter the merge window for.
> > 
> > Let me know!
> 
> Please do take it!

Geert, I queued this up onto sysctl-next, but would hope you *might*
be inclined to move the sysctls out as outlined above to help with
the kitchen sink on kernel/sysctl.c.

 Luis



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