On Wed, 2024-02-14 at 10:56 -0800, Chris Li wrote: > On Tue, Feb 13, 2024 at 4:08 PM Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx> wrote: > > > > > > > > > > extern bool swap_slot_cache_enabled; > > > +extern uint8_t slot_cache_async_free __read_mostly; > > > > Why wouldn't you enable the async_free always? > > Otherwise the patch looks fine to me. > > Thanks for the feedback. > > Just in case someone doesn't care about this optimization and wants to > opt out this behavior? > Anyway, I am happy to update the patch without the sysfs control file as well. > At least I couldn't see a downside to enable it always in the latest patch. I think adding an extra sysfs is unnecessary. Tim