On Tue, Mar 28, 2006 at 04:49:24PM -0800, Chen, Kenneth W wrote: > OK, semi-big-hammer to enforce full memory fence on ia64 for > test_and_set_bit > test_and_clear_bit > test_and_change_bit > > It's sad we don't have something like: > > test_and_set_bit_used_like_a_lock ... Normally the arch specific (e.g. __set_bit or __raw_readl) provide different semantics than the "portable" versions (e.g set_bit and readl). Can folks who know what they are doing can use arch specific versions at the expense of portability? I expect the driver to compile and work correctly on all arches, it will just be a bit more of a PITA to maintain. grant - : send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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