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    SubjectRe: [PATCH] atomic: add *_dec_not_zero
    On Sun, May 8, 2011 at 05:33, Sven Eckelmann wrote:
    > Russell King - ARM Linux wrote:
    > [...]
    >> Do we need atomic_dec_not_zero() et.al. in every arch header - is there no
    >> generic header which it could be added to?
    >
    > Mike Frysinger already tried to answer it in
    > <BANLkTimctgbto3dsnJ3d3r7NggS0KF9_Sw@mail.gmail.com>:
    >> that's what asm-generic is for.  if the arch isnt using it, it's
    >> either because the arch needs to convert to it, or they're using SMP
    >> and asm-generic doesnt yet support that for atomic.h.
    >>
    >> for example, the Blackfin port only needed updating for the SMP case.
    >> in the non-SMP case, we're getting the def from asm-generic/atomic.h.
    >
    > Feel free to change that but I just followed the style used by all other
    > macros and will not redesign the complete atomic*.h idea.

    what you're doing is currently correct. i think merging SMP support
    into asm-generic for atomic* will take a bit of pondering first.
    -mike
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