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Groups > linux.kernel > #1636835
| 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 |
* 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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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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