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Re: [GIT PULL] locking changes for v4.4

From Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups linux.kernel
Subject Re: [GIT PULL] locking changes for v4.4
Date 2015-11-04 01:00 +0100
Message-ID <qqTEC-171-3@gated-at.bofh.it> (permalink)
References <qqG4F-OO-1@gated-at.bofh.it> <qqTEC-171-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Nov 3, 2015 at 3:54 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> On Tue, Nov 3, 2015 at 1:16 AM, Ingo Molnar <mingo@kernel.org> wrote:
>>
>>   - More gradual enhancements to atomic ops: new atomic*_read_ctrl() ops,
>>     synchronize atomic_{read,set}() ordering requirements between architectures,
>>     add atomic_long_t bitops. (Peter Zijlstra)
>
> From another thread: those new "atomic*_read_ctrl()" operations are
> complete voodoo programming, and should never ever be used.

Sadly, that commit seems to be in the middle of the series.

I think I'll pull this, but then just make a separate commit to remove
all the bogus games with "control" dependencies that seem to have no
basis is reality.

                 Linus
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Thread

Re: [GIT PULL] locking changes for v4.4 Linus Torvalds <torvalds@linux-foundation.org> - 2015-11-04 01:00 +0100
  Re: [GIT PULL] locking changes for v4.4 Linus Torvalds <torvalds@linux-foundation.org> - 2015-11-04 02:40 +0100
    Re: [GIT PULL] locking changes for v4.4 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-11-04 05:20 +0100
      Re: [GIT PULL] locking changes for v4.4 Dmitry Vyukov <dvyukov@google.com> - 2015-11-04 16:00 +0100
        Re: [GIT PULL] locking changes for v4.4 Dmitry Vyukov <dvyukov@google.com> - 2015-11-04 17:10 +0100
        Re: [GIT PULL] locking changes for v4.4 Peter Zijlstra <peterz@infradead.org> - 2015-11-04 17:10 +0100
    Re: [GIT PULL] locking changes for v4.4 Peter Zijlstra <peterz@infradead.org> - 2015-11-04 12:40 +0100
      Re: [GIT PULL] locking changes for v4.4 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-11-04 15:00 +0100
    Re: [GIT PULL] locking changes for v4.4 Ingo Molnar <mingo@kernel.org> - 2015-11-04 12:50 +0100
      Re: [GIT PULL] locking changes for v4.4 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-11-04 15:00 +0100
        Re: [GIT PULL] locking changes for v4.4 Ingo Molnar <mingo@kernel.org> - 2015-11-04 16:00 +0100

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