| To: | "Russell King - ARM Linux" <linux@arm.linux.org.uk> |
|---|---|
| Subject: | Re: [PATCH] atomic: add *_dec_not_zero |
| From: | Sven Eckelmann <sven@narfation.org> |
| Date: | Sun, 8 May 2011 11:33:48 +0200 |
| Cc: | linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mips@linux-mips.org, linux-m32r@ml.linux-m32r.org, linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org, linux-cris-kernel@axis.com, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, x86@kernel.org, Chris Metcalf <cmetcalf@tilera.com>, David Howells <dhowells@redhat.com>, linux-m68k@lists.linux-m68k.org, linux-am33-list@redhat.com, linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, uclinux-dist-devel@blackfin.uclinux.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org |
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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@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
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