Thread (19 messages) flat view 19 messages, 15 authors, 2011-05-09

Re: [PATCH] atomic: add *_dec_not_zero

From: Sven Eckelmann <sven@narfation.org>
Date: 2011-05-08 09:33:57
Also in: linux-alpha, linux-arch, linux-arm-kernel, linux-mips, linux-s390, linux-sh, lkml, sparclinux

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 
[ref]:
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

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