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

From: Linus Torvalds
Date: Tue Nov 03 2015 - 18:59:00 EST

On Tue, Nov 3, 2015 at 3:54 PM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, Nov 3, 2015 at 1:16 AM, Ingo Molnar <mingo@xxxxxxxxxx> 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.

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