On 7/6/2024 7:20 AM, Wei Yang wrote: > Instead of accessing zoneref->zone directly, use zonelist_zone() like > other places for consistency. > > No functional change. > > Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx> > CC: Mike Rapoport (IBM) <rppt@xxxxxxxxxx> > CC: David Hildenbrand <david@xxxxxxxxxx> > --- > include/linux/mmzone.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h > index cb7f265c2b96..51bce636373f 100644 > --- a/include/linux/mmzone.h > +++ b/include/linux/mmzone.h > @@ -1690,7 +1690,7 @@ static inline struct zoneref *first_zones_zonelist(struct zonelist *zonelist, > zone = zonelist_zone(z)) > > #define for_next_zone_zonelist_nodemask(zone, z, highidx, nodemask) \ > - for (zone = z->zone; \ > + for (zone = zonelist_zone(z); \ > zone; \ > z = next_zones_zonelist(++z, highidx, nodemask), \ > zone = zonelist_zone(z)) > @@ -1726,7 +1726,7 @@ static inline bool movable_only_nodes(nodemask_t *nodes) > nid = first_node(*nodes); > zonelist = &NODE_DATA(nid)->node_zonelists[ZONELIST_FALLBACK]; > z = first_zones_zonelist(zonelist, ZONE_NORMAL, nodes); > - return (!z->zone) ? true : false; > + return (!zonelist_zone(z)) ? true : false; > } > > Hi Wei, I'd like to propose extending the use of the zonelist_zone helper function in several other locations. I've identified the following places where zonelist_zone could be used instead of the current approach: oom.h:58 __entry->node = zone_to_nid(zoneref->zone); mempolicy.c:1956 return z->zone ? zone_to_nid(z->zone) : node; mempolicy.c:2805 polnid = zone_to_nid(z->zone); page_alloc.c:4205 if (!z->zone) page_alloc.c:5285 return zone_to_nid(z->zone); I hope this will further help with improving readability and maintainability across mm. Thanks, Shivank
