On Tue, Jun 25, 2019 at 02:12:22PM +0200, Andreas Gruenbacher wrote: > > Only if we do as David suggested and make clean_and_wake_up_bit() > > provide the RELEASE barrier. > > (It's clear_and_wake_up_bit, not clean_and_wake_up_bit.) Yes, typing hard. > > That is, currently clear_and_wake_up_bit() is > > > > clear_bit() > > smp_mb__after_atomic(); > > wake_up_bit(); > > > Now I'm confused because clear_and_wake_up_bit() in mainline does use > clear_bit_unlock(), so it's the exact opposite of what you just said. Argh; clearly I couldn't read. And then yes, you're right. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
