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mm: use zonelist name instead of using hardcoded index

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Use the existing enums instead of hardcoded index when looking at the
zonelist.  This makes it more readable.  No functionality change by this
patch.

Link: http://lkml.kernel.org/r/1472227078-24852-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Aneesh Kumar K.V 2016-10-07 16:59:12 -07:00 committed by Linus Torvalds
parent 1b51e65eab
commit c9634cf012
3 changed files with 6 additions and 6 deletions
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2
mm/mempolicy.c
View file

@ -1749,7 +1749,7 @@ unsigned int mempolicy_slab_node(void)
*/
struct zonelist *zonelist;
enum zone_type highest_zoneidx = gfp_zone(GFP_KERNEL);
zonelist = &NODE_DATA(node)->node_zonelists[0];
zonelist = &NODE_DATA(node)->node_zonelists[ZONELIST_FALLBACK];
z = first_zones_zonelist(zonelist, highest_zoneidx,
&policy->v.nodes);
return z->zone ? z->zone->node : node;

8
mm/page_alloc.c
View file

@ -4574,7 +4574,7 @@ static void build_zonelists_in_node_order(pg_data_t *pgdat, int node)
int j;
struct zonelist *zonelist;
zonelist = &pgdat->node_zonelists[0];
zonelist = &pgdat->node_zonelists[ZONELIST_FALLBACK];
for (j = 0; zonelist->_zonerefs[j].zone != NULL; j++)
;
j = build_zonelists_node(NODE_DATA(node), zonelist, j);
@ -4590,7 +4590,7 @@ static void build_thisnode_zonelists(pg_data_t *pgdat)
int j;
struct zonelist *zonelist;
zonelist = &pgdat->node_zonelists[1];
zonelist = &pgdat->node_zonelists[ZONELIST_NOFALLBACK];
j = build_zonelists_node(pgdat, zonelist, 0);
zonelist->_zonerefs[j].zone = NULL;
zonelist->_zonerefs[j].zone_idx = 0;
@ -4611,7 +4611,7 @@ static void build_zonelists_in_zone_order(pg_data_t *pgdat, int nr_nodes)
struct zone *z;
struct zonelist *zonelist;
zonelist = &pgdat->node_zonelists[0];
zonelist = &pgdat->node_zonelists[ZONELIST_FALLBACK];
pos = 0;
for (zone_type = MAX_NR_ZONES - 1; zone_type >= 0; zone_type--) {
for (j = 0; j < nr_nodes; j++) {
@ -4746,7 +4746,7 @@ static void build_zonelists(pg_data_t *pgdat)
local_node = pgdat->node_id;
zonelist = &pgdat->node_zonelists[0];
zonelist = &pgdat->node_zonelists[ZONELIST_FALLBACK];
j = build_zonelists_node(pgdat, zonelist, 0);
/*

2
mm/vmscan.c
View file

@ -3036,7 +3036,7 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg,
*/
nid = mem_cgroup_select_victim_node(memcg);
zonelist = NODE_DATA(nid)->node_zonelists;
zonelist = &NODE_DATA(nid)->node_zonelists[ZONELIST_FALLBACK];
trace_mm_vmscan_memcg_reclaim_begin(0,
sc.may_writepage,