[PATCH] atomic: add *_dec_not_zero

Sven Eckelmann sven at narfation.org
Sun May 8 19:33:48 EST 2011


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 at 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.
> -mike

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.

thanks,
	Sven
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20110508/c3123ca9/attachment.pgp>


More information about the Linuxppc-dev mailing list