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@xxxxxxxxxxxxxx>:
that's what asm-generic is for. Âif 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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