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mm: use zonelist name instead of using hardcoded index 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
mm/mempolicy.c
View File

@ -1749,7 +1749,7 @@ unsigned int mempolicy_slab_node(void)
*/ */
struct zonelist *zonelist; struct zonelist *zonelist;
enum zone_type highest_zoneidx = gfp_zone(GFP_KERNEL); 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, z = first_zones_zonelist(zonelist, highest_zoneidx,
&policy->v.nodes); &policy->v.nodes);
return z->zone ? z->zone->node : node; 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; int j;
struct zonelist *zonelist; struct zonelist *zonelist;
zonelist = &pgdat->node_zonelists[0]; zonelist = &pgdat->node_zonelists[ZONELIST_FALLBACK];
for (j = 0; zonelist->_zonerefs[j].zone != NULL; j++) for (j = 0; zonelist->_zonerefs[j].zone != NULL; j++)
; ;
j = build_zonelists_node(NODE_DATA(node), zonelist, 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; int j;
struct zonelist *zonelist; struct zonelist *zonelist;
zonelist = &pgdat->node_zonelists[1]; zonelist = &pgdat->node_zonelists[ZONELIST_NOFALLBACK];
j = build_zonelists_node(pgdat, zonelist, 0); j = build_zonelists_node(pgdat, zonelist, 0);
zonelist->_zonerefs[j].zone = NULL; zonelist->_zonerefs[j].zone = NULL;
zonelist->_zonerefs[j].zone_idx = 0; 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 zone *z;
struct zonelist *zonelist; struct zonelist *zonelist;
zonelist = &pgdat->node_zonelists[0]; zonelist = &pgdat->node_zonelists[ZONELIST_FALLBACK];
pos = 0; pos = 0;
for (zone_type = MAX_NR_ZONES - 1; zone_type >= 0; zone_type--) { for (zone_type = MAX_NR_ZONES - 1; zone_type >= 0; zone_type--) {
for (j = 0; j < nr_nodes; j++) { for (j = 0; j < nr_nodes; j++) {
@ -4746,7 +4746,7 @@ static void build_zonelists(pg_data_t *pgdat)
local_node = pgdat->node_id; local_node = pgdat->node_id;
zonelist = &pgdat->node_zonelists[0]; zonelist = &pgdat->node_zonelists[ZONELIST_FALLBACK];
j = build_zonelists_node(pgdat, zonelist, 0); 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); 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, trace_mm_vmscan_memcg_reclaim_begin(0,
sc.may_writepage, sc.may_writepage,