Re: [PATCH] atomic: add *_dec_not_zero
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- To: "David Laight" <David.Laight@xxxxxxxxxx>
- Subject: Re: [PATCH] atomic: add *_dec_not_zero
- From: Sven Eckelmann <sven@xxxxxxxxxxxxx>
- Date: Wed, 4 May 2011 10:21:16 +0200
- Cc: linux-kernel@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx, linux-m32r@xxxxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linux-cris-kernel@xxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, "Chris Metcalf" <cmetcalf@xxxxxxxxxx>, "David Howells" <dhowells@xxxxxxxxxx>, linux-m68k@xxxxxxxxxxxxxxx, linux-am33-list@xxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, uclinux-dist-devel@xxxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
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On Wednesday 04 May 2011 10:05:53 David Laight wrote:
> > Introduce an *_dec_not_zero operation. Make this a special case of
> > *_add_unless because batman-adv uses atomic_dec_not_zero in different
> > places like re-broadcast queue or aggregation queue management. There
> > are other non-final patches which may also want to use this macro.
>
> Isn't there a place where a default definition of this can be
> defined? Instead of adding it separately to every architecture.
Not that I would know about such a place - and all other atomic* macro
definitions also suggest that there is no such place.
Kind regards,
Sven
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