From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Date: Tue, 8 May 2007 22:13:22 +1000 > [NET] link_watch: Move link watch list into net_device > > These days the link watch mechanism is an integral part of the > network subsystem as it manages the carrier status. So it now > makes sense to allocate some memory for it in net_device rather > than allocating it on demand. > > In fact, this is necessary because we can't tolerate a memory > allocation failure since that means we'd have to potentially > throw a link up event away. > > It also simplifies the code greatly. > > In doing so I discovered a subtle race condition in the use > of singleevent. This race condition still exists (and is > somewhat magnified) without singleevent but it's now plugged > thanks to an smp_mb__before_clear_bit. > > Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Applied, thanks Herbert. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
