On Sun, Jun 24, 2007 at 01:18:42PM -0700, Arjan van de Ven wrote: > > > Hmm, could define a macro DECLARE_ATOMIC_BITMAP(maxbit) that expands to the > > smallest > > possible type for each architecture. And a couple of ugly casts for set_bit > > et.al. > > but those could be also hidden in macros. Should be relatively easy to do. > > or make a "smallbit" type that is small/supported, so 64 bit if 32 bit > isn't supported, otherwise 32
That wouldn't handle the case where you only need e.g. 8 bits That's fine for x86 too. It only hates atomic accesses crossing cache line boundaries (but handles them too, just slow) -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
