Christophe Leroy <christophe.leroy@xxxxxxxxxx> writes: > Le 10/07/2023 à 18:08, Aneesh Kumar K.V a écrit : >> dax vmemmap optimization requires a minimum of 2 PAGE_SIZE area within >> vmemmap such that tail page mapping can point to the second PAGE_SIZE area. >> Enforce that in vmemmap_can_optimize() function. >> >> Architectures like powerpc also want to enable vmemmap optimization >> conditionally (only with radix MMU translation). Hence allow architecture >> override. >> >> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx> > > Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx> > > Why renaming vmemmap_can_optimize() to __vmemmap_can_optimize() and keep > it when vmemmap_can_optimize() has been override ? Is that because you > expect overriding version of vmemmap_can_optimize() to call > __vmemmap_can_optimize() ? > Yes, __vmemap_can_optimize will be used in patch 11 https://lore.kernel.org/linuxppc-dev/20230710160842.56300-12-aneesh.kumar@xxxxxxxxxxxxx -aneesh
