mm: use IS_ENABLED(CONFIG_NUMA) instead of NUMA_BUILD

We don't need custom NUMA_BUILD anymore, since we have handy
IS_ENABLED().

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dc018b486b74..a49b0ea3cc2f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1871,7 +1871,7 @@ zonelist_scan:
          */
         for_each_zone_zonelist_nodemask(zone, z, zonelist,
                                                 high_zoneidx, nodemask) {
-                if (NUMA_BUILD && zlc_active &&
+                if (IS_ENABLED(CONFIG_NUMA) && zlc_active &&
                         !zlc_zone_worth_trying(zonelist, z, allowednodes))
                                 continue;
                 if ((alloc_flags & ALLOC_CPUSET) &&
@@ -1917,7 +1917,8 @@ zonelist_scan:
                                     classzone_idx, alloc_flags))
                                 goto try_this_zone;
 
-                        if (NUMA_BUILD && !did_zlc_setup && nr_online_nodes > 1) {
+                        if (IS_ENABLED(CONFIG_NUMA) &&
+                                        !did_zlc_setup && nr_online_nodes > 1) {
                                 /*
                                  * we do zlc_setup if there are multiple nodes
                                  * and before considering the first zone allowed
@@ -1936,7 +1937,7 @@ zonelist_scan:
                          * As we may have just activated ZLC, check if the first
                          * eligible zone has failed zone_reclaim recently.
                          */
-                        if (NUMA_BUILD && zlc_active &&
+                        if (IS_ENABLED(CONFIG_NUMA) && zlc_active &&
                                 !zlc_zone_worth_trying(zonelist, z, allowednodes))
                                 continue;
 
@@ -1962,11 +1963,11 @@ try_this_zone:
                 if (page)
                         break;
 this_zone_full:
-                if (NUMA_BUILD)
+                if (IS_ENABLED(CONFIG_NUMA))
                         zlc_mark_zone_full(zonelist, z);
         }
 
-        if (unlikely(NUMA_BUILD && page == NULL && zlc_active)) {
+        if (unlikely(IS_ENABLED(CONFIG_NUMA) && page == NULL && zlc_active)) {
                 /* Disable zlc cache for second zonelist scan */
                 zlc_active = 0;
                 goto zonelist_scan;
@@ -2266,7 +2267,7 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
                 return NULL;
 
         /* After successful reclaim, reconsider all zones for allocation */
-        if (NUMA_BUILD)
+        if (IS_ENABLED(CONFIG_NUMA))
                 zlc_clear_zones_full(zonelist);
 
 retry:
@@ -2412,7 +2413,8 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
          * allowed per node queues are empty and that nodes are
          * over allocated.
          */
-        if (NUMA_BUILD && (gfp_mask & GFP_THISNODE) == GFP_THISNODE)
+        if (IS_ENABLED(CONFIG_NUMA) &&
+                        (gfp_mask & GFP_THISNODE) == GFP_THISNODE)
                 goto nopage;
 
 restart:
@@ -2819,7 +2821,7 @@ unsigned int nr_free_pagecache_pages(void)
 
 static inline void show_node(struct zone *zone)
 {
-        if (NUMA_BUILD)
+        if (IS_ENABLED(CONFIG_NUMA))
                 printk("Node %d ", zone_to_nid(zone));
 }