[RFC] [PATCH] Remove custom pthread_once implementation on sh.
Kaz Kojima
kkojima@rr.iij4u.or.jp
Tue Dec 9 00:03:00 GMT 2014
Torvald Riegel <triegel@redhat.com> wrote:
> This patch removes the custom implementation of pthread_once on sh. I
> have not tested this, but the generic implementation in
> nptl/pthread_once.c works well on several architectures.
>
> I don't claim to really understand sh assembly, but given that sh
> defines no HW barriers it seems that the pthread_once fast path would
> just be a normal load and a compiler barrier, which should be as fast in
> C as in assembler.
>
> Removing the custom implementation will ease maintenance. If we decide
> not to, I'd at least like to document why in the source of the custom
> custom implementation.
>
> Thoughts? OK to commit?
You are right. The patch is OK.
Regards,
kaz
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