On Tue, 2007-07-24 at 11:13 -0700, Linus Torvalds wrote: > > IOW, if you do a spinlock with the bitops, the locking side should be > able > to use a "test_and_set_bit()" on its own, but the unlocking side > should be > > smp_mb__before_clear_bit(); > clear_bit(); > > because the ones that don't return a value also don't imply a memory > barrier.
Yup. But I much prefer Nick's clear_bit_unlock() :-) Ben. - 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/
