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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2012-12-11 16:00:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-11 17:22:22 -0800
commite5adfffc857788c8b7eca0e98cf1e26f1964b292 (patch)
tree8d1ac37aa649a060055162b59cb06e8ca63f7a68
parent19965460e31c73a934d2c19c152f876a75bdff3e (diff)
downloadlinux-linaro-stable-e5adfffc857788c8b7eca0e98cf1e26f1964b292.tar.gz
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>
-rw-r--r--include/linux/gfp.h2
-rw-r--r--include/linux/kernel.h7
-rw-r--r--mm/page_alloc.c18
-rw-r--r--mm/vmalloc.c4
4 files changed, 13 insertions, 18 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index d0a79678f169..31e8041274f6 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -266,7 +266,7 @@ static inline enum zone_type gfp_zone(gfp_t flags)
static inline int gfp_zonelist(gfp_t flags)
{
- if (NUMA_BUILD && unlikely(flags & __GFP_THISNODE))
+ if (IS_ENABLED(CONFIG_NUMA) && unlikely(flags & __GFP_THISNODE))
return 1;
return 0;
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 7d8dfc7392f1..815e5845d954 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -687,13 +687,6 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
/* Trap pasters of __FUNCTION__ at compile-time */
#define __FUNCTION__ (__func__)
-/* This helps us to avoid #ifdef CONFIG_NUMA */
-#ifdef CONFIG_NUMA
-#define NUMA_BUILD 1
-#else
-#define NUMA_BUILD 0
-#endif
-
/* This helps us avoid #ifdef CONFIG_COMPACTION */
#ifdef CONFIG_COMPACTION
#define COMPACTION_BUILD 1
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));
}
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 78e08300db21..5123a169ab7b 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2550,7 +2550,7 @@ static void s_stop(struct seq_file *m, void *p)
static void show_numa_info(struct seq_file *m, struct vm_struct *v)
{
- if (NUMA_BUILD) {
+ if (IS_ENABLED(CONFIG_NUMA)) {
unsigned int nr, *counters = m->private;
if (!counters)
@@ -2615,7 +2615,7 @@ static int vmalloc_open(struct inode *inode, struct file *file)
unsigned int *ptr = NULL;
int ret;
- if (NUMA_BUILD) {
+ if (IS_ENABLED(CONFIG_NUMA)) {
ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
if (ptr == NULL)
return -ENOMEM;