Re: [PATCH 1/6] ipc/sem.c: further whitespace cleanups

[Manfred Spraul]

Hi Davidlohr,

On 05/12/2014 01:34 AM, Davidlohr Bueso wrote:
> On Sat, 2014-05-10 at 12:03 +0200, Manfred Spraul wrote:
> > Somehow <TAB>$ was overlooked in the last round of whitespace
> > cleanups.
> > Do that now, before making further changes.
> No big deal, but this patch could easily be included in the the second
> patch instead on its own. Thanks.
The patch series you see is the third approach to fix the issue:
- do not store anything, call perform_atomic_semop() in count_semncnt()
  Really cool, no impact at all for semop() - but nasty.
  A sleeping operation could fail suddenly due to -ERANGE.

- store semncnt and semzcnt in struct sem:
  Increase in perform_atomic_semop(), decrease in unlink_queue().

- Now: store the pointer to the blocking op.

That's why the series got so fine-grained...

--
    Manfred


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