* [PATCH] mm: Use zonelist name instead of using hardcoded index
@ 2016-08-26 15:57 Aneesh Kumar K.V
2016-08-29 5:43 ` Anshuman Khandual
0 siblings, 1 reply; 2+ messages in thread
From: Aneesh Kumar K.V @ 2016-08-26 15:57 UTC (permalink / raw)
To: akpm; +Cc: linux-mm, linux-kernel, Aneesh Kumar K.V
This use the existing enums instead of hardcoded index when looking at the
zonelist. This makes it more readable. No functionality change by this
patch.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
mm/mempolicy.c | 2 +-
mm/page_alloc.c | 8 ++++----
mm/vmscan.c | 2 +-
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index d8c4e38fb5f4..f38fe1e64192 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -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;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3fbe73a6fe4b..8bcd18c3118c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4602,7 +4602,7 @@ 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);
@@ -4618,7 +4618,7 @@ 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;
@@ -4639,7 +4639,7 @@ 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++) {
@@ -4774,7 +4774,7 @@ 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);
/*
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 374d95d04178..25522e0ce2b5 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3060,7 +3060,7 @@ 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,
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] mm: Use zonelist name instead of using hardcoded index
2016-08-26 15:57 [PATCH] mm: Use zonelist name instead of using hardcoded index Aneesh Kumar K.V
@ 2016-08-29 5:43 ` Anshuman Khandual
0 siblings, 0 replies; 2+ messages in thread
From: Anshuman Khandual @ 2016-08-29 5:43 UTC (permalink / raw)
To: Aneesh Kumar K.V, akpm; +Cc: linux-mm, linux-kernel
On 08/26/2016 09:27 PM, Aneesh Kumar K.V wrote:
> This use the existing enums instead of hardcoded index when looking at the
Small nit. 'use' --> 'uses'
> zonelist. This makes it more readable. No functionality change by this
> patch.
Came across this some time back, yeah it really makes sense to replace
those hard coded indices.
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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