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Subject: Re: svn commit: r334712 - head/sys/compat/linuxkpi/common/include/asm
To: Mateusz Guzik <mjguzik@gmail.com>
Cc: src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
References: <201806061359.w56DxpSZ020224@repo.freebsd.org>
 <CAGudoHFHZk_9qB016bUhcQH4sGCbNLj28FkdJ0Q4M2joR0x3xw@mail.gmail.com>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <36f5f6e5-5ad6-5159-22f8-96570a66ed10@selasky.org>
Date: Wed, 6 Jun 2018 17:49:43 +0200
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On 06/06/18 17:06, Mateusz Guzik wrote:
> On Wed, Jun 6, 2018 at 3:59 PM, Hans Petter Selasky <hselasky@freebsd.org>
> wrote:

> 
> cmpset loops are crap since they require an explicit re-read of the target
> value
> 
> see fcmpset and refcount_acquire_if_not_zero for an example use
> 

See r334718.

Thank you!

--HPS