From 29943248af0a8ac3edb808564baa417b40e35521 Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Mon, 29 Jul 2024 14:47:17 +0530 Subject: [PATCH] mm: improve code consistency with zonelist_* helper functions Replace direct access to zoneref->zone, zoneref->zone_idx, or zone_to_nid(zoneref->zone) with the corresponding zonelist_* helper functions for consistency. No functional change. Link: https://lkml.kernel.org/r/20240729091717.464-1-shivankg@amd.com Co-developed-by: Shivank Garg Signed-off-by: Shivank Garg Signed-off-by: Wei Yang Acked-by: David Hildenbrand Cc: Mike Rapoport (IBM) Signed-off-by: Andrew Morton --- include/linux/mmzone.h | 4 ++-- include/trace/events/oom.h | 4 ++-- mm/mempolicy.c | 4 ++-- mm/mmzone.c | 2 +- mm/page_alloc.c | 22 +++++++++++----------- 5 files changed, 18 insertions(+), 18 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 1dc6248feb83..dbb69f96a152 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -1688,7 +1688,7 @@ 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)) @@ -1724,7 +1724,7 @@ 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; } diff --git a/include/trace/events/oom.h b/include/trace/events/oom.h index a42be4c8563b..9f0a5d1482c4 100644 --- a/include/trace/events/oom.h +++ b/include/trace/events/oom.h @@ -55,8 +55,8 @@ TRACE_EVENT(reclaim_retry_zone, ), TP_fast_assign( - __entry->node = zone_to_nid(zoneref->zone); - __entry->zone_idx = zoneref->zone_idx; + __entry->node = zonelist_node_idx(zoneref); + __entry->zone_idx = zonelist_zone_idx(zoneref); __entry->order = order; __entry->reclaimable = reclaimable; __entry->available = available; diff --git a/mm/mempolicy.c b/mm/mempolicy.c index b858e22b259d..b3b5f376471f 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1951,7 +1951,7 @@ unsigned int mempolicy_slab_node(void) zonelist = &NODE_DATA(node)->node_zonelists[ZONELIST_FALLBACK]; z = first_zones_zonelist(zonelist, highest_zoneidx, &policy->nodes); - return z->zone ? zone_to_nid(z->zone) : node; + return zonelist_zone(z) ? zonelist_node_idx(z) : node; } case MPOL_LOCAL: return node; @@ -2809,7 +2809,7 @@ int mpol_misplaced(struct folio *folio, struct vm_fault *vmf, node_zonelist(thisnid, GFP_HIGHUSER), gfp_zone(GFP_HIGHUSER), &pol->nodes); - polnid = zone_to_nid(z->zone); + polnid = zonelist_node_idx(z); break; default: diff --git a/mm/mmzone.c b/mm/mmzone.c index c01896eca736..f9baa8882fbf 100644 --- a/mm/mmzone.c +++ b/mm/mmzone.c @@ -66,7 +66,7 @@ struct zoneref *__next_zones_zonelist(struct zoneref *z, z++; else while (zonelist_zone_idx(z) > highest_zoneidx || - (z->zone && !zref_in_nodemask(z, nodes))) + (zonelist_zone(z) && !zref_in_nodemask(z, nodes))) z++; return z; diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c565de8f48e9..60742d057b05 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3350,7 +3350,7 @@ retry: } if (no_fallback && nr_online_nodes > 1 && - zone != ac->preferred_zoneref->zone) { + zone != zonelist_zone(ac->preferred_zoneref)) { int local_nid; /* @@ -3358,7 +3358,7 @@ retry: * fragmenting fallbacks. Locality is more important * than fragmentation avoidance. */ - local_nid = zone_to_nid(ac->preferred_zoneref->zone); + local_nid = zonelist_node_idx(ac->preferred_zoneref); if (zone_to_nid(zone) != local_nid) { alloc_flags &= ~ALLOC_NOFRAGMENT; goto retry; @@ -3411,7 +3411,7 @@ check_alloc_wmark: goto try_this_zone; if (!node_reclaim_enabled() || - !zone_allows_reclaim(ac->preferred_zoneref->zone, zone)) + !zone_allows_reclaim(zonelist_zone(ac->preferred_zoneref), zone)) continue; ret = node_reclaim(zone->zone_pgdat, gfp_mask, order); @@ -3433,7 +3433,7 @@ check_alloc_wmark: } try_this_zone: - page = rmqueue(ac->preferred_zoneref->zone, zone, order, + page = rmqueue(zonelist_zone(ac->preferred_zoneref), zone, order, gfp_mask, alloc_flags, ac->migratetype); if (page) { prep_new_page(page, order, gfp_mask, alloc_flags); @@ -4202,7 +4202,7 @@ restart: */ ac->preferred_zoneref = first_zones_zonelist(ac->zonelist, ac->highest_zoneidx, ac->nodemask); - if (!ac->preferred_zoneref->zone) + if (!zonelist_zone(ac->preferred_zoneref)) goto nopage; /* @@ -4214,7 +4214,7 @@ restart: struct zoneref *z = first_zones_zonelist(ac->zonelist, ac->highest_zoneidx, &cpuset_current_mems_allowed); - if (!z->zone) + if (!zonelist_zone(z)) goto nopage; } @@ -4571,8 +4571,8 @@ unsigned long alloc_pages_bulk_noprof(gfp_t gfp, int preferred_nid, continue; } - if (nr_online_nodes > 1 && zone != ac.preferred_zoneref->zone && - zone_to_nid(zone) != zone_to_nid(ac.preferred_zoneref->zone)) { + if (nr_online_nodes > 1 && zone != zonelist_zone(ac.preferred_zoneref) && + zone_to_nid(zone) != zonelist_node_idx(ac.preferred_zoneref)) { goto failed; } @@ -4631,7 +4631,7 @@ unsigned long alloc_pages_bulk_noprof(gfp_t gfp, int preferred_nid, pcp_trylock_finish(UP_flags); __count_zid_vm_events(PGALLOC, zone_idx(zone), nr_account); - zone_statistics(ac.preferred_zoneref->zone, zone, nr_account); + zone_statistics(zonelist_zone(ac.preferred_zoneref), zone, nr_account); out: return nr_populated; @@ -4689,7 +4689,7 @@ struct page *__alloc_pages_noprof(gfp_t gfp, unsigned int order, * Forbid the first pass from falling back to types that fragment * memory until all local zones are considered. */ - alloc_flags |= alloc_flags_nofragment(ac.preferred_zoneref->zone, gfp); + alloc_flags |= alloc_flags_nofragment(zonelist_zone(ac.preferred_zoneref), gfp); /* First allocation attempt */ page = get_page_from_freelist(alloc_gfp, order, alloc_flags, &ac); @@ -5294,7 +5294,7 @@ int local_memory_node(int node) z = first_zones_zonelist(node_zonelist(node, GFP_KERNEL), gfp_zone(GFP_KERNEL), NULL); - return zone_to_nid(z->zone); + return zonelist_node_idx(z); } #endif