* smp_read_barrier_depends() into READ_ONCE()
@ 2018-03-04 2:13 Yubin Ruan
2018-03-04 3:11 ` Akira Yokosawa
0 siblings, 1 reply; 4+ messages in thread
From: Yubin Ruan @ 2018-03-04 2:13 UTC (permalink / raw)
To: Paul E. McKenney; +Cc: perfbook
Hi paul,
Please provide the commit link/hash for the changes of
smp_read_barrier_depends() in the kernel. I remember that it was post by Akira
once on the mailing list, but not sure I can get the right one.
Thanks,
Yubin
--
Yubin Ruan <http://fastdrivers.org>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: smp_read_barrier_depends() into READ_ONCE()
2018-03-04 2:13 smp_read_barrier_depends() into READ_ONCE() Yubin Ruan
@ 2018-03-04 3:11 ` Akira Yokosawa
2018-03-04 3:43 ` Akira Yokosawa
0 siblings, 1 reply; 4+ messages in thread
From: Akira Yokosawa @ 2018-03-04 3:11 UTC (permalink / raw)
To: Yubin Ruan, Paul E. McKenney; +Cc: perfbook, Akira Yokosawa
On 2018/03/04 10:13:05 +0800, Yubin Ruan wrote:
> Hi paul,
>
> Please provide the commit link/hash for the changes of
> smp_read_barrier_depends() in the kernel. I remember that it was post by Akira
> once on the mailing list, but not sure I can get the right one.
>
> Thanks,
> Yubin
>
Hi Yubin,
It's 76ebbe78f739 ("locking/barriers: Add implicit smp_read_barrier_depends() to
READ_ONCE()").
Thanks, Akira
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: smp_read_barrier_depends() into READ_ONCE()
2018-03-04 3:11 ` Akira Yokosawa
@ 2018-03-04 3:43 ` Akira Yokosawa
2018-03-04 5:16 ` Yubin Ruan
0 siblings, 1 reply; 4+ messages in thread
From: Akira Yokosawa @ 2018-03-04 3:43 UTC (permalink / raw)
To: Yubin Ruan, Paul E. McKenney; +Cc: perfbook, Akira Yokosawa
On 2018/03/04 12:11:14 +0900, Akira Yokosawa wrote:
> On 2018/03/04 10:13:05 +0800, Yubin Ruan wrote:
>> Hi paul,
>>
>> Please provide the commit link/hash for the changes of
>> smp_read_barrier_depends() in the kernel. I remember that it was post by Akira
>> once on the mailing list, but not sure I can get the right one.
>>
>> Thanks,
>> Yubin
>>
>
> Hi Yubin,
>
> It's 76ebbe78f739 ("locking/barriers: Add implicit smp_read_barrier_depends() to
> READ_ONCE()").
FWIW, it was cherry-picked into x86-pti branch as commit c2bc66082e10, which was
also merged in merge-commit f8940a0f20eb ("Merge branch 'WIP.x86-pti.base-for-linus'
of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip").
Thanks, Akira
>
> Thanks, Akira
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: smp_read_barrier_depends() into READ_ONCE()
2018-03-04 3:43 ` Akira Yokosawa
@ 2018-03-04 5:16 ` Yubin Ruan
0 siblings, 0 replies; 4+ messages in thread
From: Yubin Ruan @ 2018-03-04 5:16 UTC (permalink / raw)
To: Akira Yokosawa; +Cc: perfbook
On Sun, Mar 04, 2018 at 12:43:07PM +0900, Akira Yokosawa wrote:
> On 2018/03/04 12:11:14 +0900, Akira Yokosawa wrote:
> > On 2018/03/04 10:13:05 +0800, Yubin Ruan wrote:
> >> Hi paul,
> >>
> >> Please provide the commit link/hash for the changes of
> >> smp_read_barrier_depends() in the kernel. I remember that it was post by Akira
> >> once on the mailing list, but not sure I can get the right one.
> >>
> >> Thanks,
> >> Yubin
> >>
> >
> > Hi Yubin,
> >
> > It's 76ebbe78f739 ("locking/barriers: Add implicit smp_read_barrier_depends() to
> > READ_ONCE()").
>
> FWIW, it was cherry-picked into x86-pti branch as commit c2bc66082e10, which was
> also merged in merge-commit f8940a0f20eb ("Merge branch 'WIP.x86-pti.base-for-linus'
> of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip").
Thanks Akira ;-)
Yubin
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-03-04 5:17 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2018-03-04 2:13 smp_read_barrier_depends() into READ_ONCE() Yubin Ruan
2018-03-04 3:11 ` Akira Yokosawa
2018-03-04 3:43 ` Akira Yokosawa
2018-03-04 5:16 ` Yubin Ruan
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