RE: [PATCH] atomic: add *_dec_not_zero
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- To: "Sven Eckelmann" <sven@xxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>
- Subject: RE: [PATCH] atomic: add *_dec_not_zero
- From: "David Laight" <David.Laight@xxxxxxxxxx>
- Date: Wed, 4 May 2011 09:05:53 +0100
- Cc: <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>
- In-reply-to: <1304458235-28473-1-git-send-email-sven@xxxxxxxxxxxxx>
- List-id: <linux-ia64.vger.kernel.org>
- Thread-index: AcwJ3EAltH6AZTKdQ3qO9QnukRcgpAAVa6Mw
- Thread-topic: [PATCH] atomic: add *_dec_not_zero
> 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.
David
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