On Tue, Jun 11 2019 at 12:37pm -0400, Pankaj Gupta <pagupta@xxxxxxxxxx> wrote: > This patch sets dax device 'DAXDEV_SYNC' flag if all the target > devices of device mapper support synchrononous DAX. If device > mapper consists of both synchronous and asynchronous dax devices, > we don't set 'DAXDEV_SYNC' flag. > > 'dm_table_supports_dax' is refactored to pass 'iterate_devices_fn' > as argument so that the callers can pass the appropriate functions. > > Suggested-by: Mike Snitzer <snitzer@xxxxxxxxxx> > Signed-off-by: Pankaj Gupta <pagupta@xxxxxxxxxx> Thanks, and for the benefit of others, passing function pointers like this is perfectly fine IMHO because this code is _not_ in the fast path. These methods are only for device creation. Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx>