On Fri, Mar 17, 2023 at 05:31:04PM -0700, Paul E. McKenney wrote: > On Fri, Mar 17, 2023 at 08:15:58AM +0100, Uladzislau Rezki (Sony) wrote: > > The ext4_kvfree_array_rcu() function was introduced in order to > > release some memory after a grace period during resizing of a > > partition. An object that is freed does not contain any rcu_head > > filed. > > > > To do so, it requires to allocate some extra memory for a special > > structure that has an rcu_head filed and pointer one where a freed > > memory is attached. Finally call_rcu() API is invoked. > > > > Since we have a single argument of kvfree_rcu() API, we can easily > > replace all that tricky code by one single call that does the same > > but in more efficient way. > > > > Cc: linux-ext4@xxxxxxxxxxxxxxx > > Cc: Lukas Czerner <lczerner@xxxxxxxxxx> > > Cc: Andreas Dilger <adilger.kernel@xxxxxxxxx> > > Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx> > > From an RCU perspective: > > Reviewed-by: Paul E. McKenney <paulmck@xxxxxxxxxx> > Thank you! -- Uladzislau Rezki
