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Re: FYI, tiny-kernel fix for rcu_segcblist separate .c file

From Ingo Molnar <mingo@kernel.org>
Newsgroups linux.kernel
Subject Re: FYI, tiny-kernel fix for rcu_segcblist separate .c file
Date 2017-05-06 09:20 +0200
Message-ID <tE2au-52D-5@gated-at.bofh.it> (permalink)
References <tDO7w-437-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:

> Hello, Ingo,
> 
> Just in case you get complaints about kernel size...
> 
> In response to Linus's feedback, I did commit 98059b98619d ("rcu:
> Separately compile large rcu_segcblist functions"), which of course
> has the side-effect of bloating Tiny SRCU, which 0day Test Robot
> complains about.
> 
> So I have queued commit 7bf7fa5acc92 ("srcu: Apply trivial callback
> lists to shrink Tiny SRCU"), which makes up for the bloating and then some.
> 
> I don't believe that this debloating is at all urgent because people
> building kernels for small-memory devices have to do a lot of other
> tweaking, so that applying this additional commit as a patch should
> not be too much incremental pain.
> 
> So again, if you get complaints about 98059b98619d bloating tiny
> kernel builds, 7bf7fa5acc92 is the fix.

Ok!

I do agree that it's not urgent: single CPU systems are rapidly becoming the 
exception for new hardware designed, even for embedded systems. At this point
I think the educational value of TinyRCU is its main quality.

Thanks,

	Ingo

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Thread

FYI, tiny-kernel fix for rcu_segcblist separate .c file "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-05-05 18:20 +0200
  Re: FYI, tiny-kernel fix for rcu_segcblist separate .c file Ingo Molnar <mingo@kernel.org> - 2017-05-06 09:20 +0200
    Re: FYI, tiny-kernel fix for rcu_segcblist separate .c file "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-05-06 19:00 +0200

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