X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Foom_kill.c;h=64e5b4bcd964cd912b5a5f6b22dc392621269d84;hb=0a7c9df7b9a1c52f80d958edf3c0dc2342489d52;hp=beb592fe9389ffa9fe34c8c92ca82ada55abd960;hpb=ce1d5b23a8d1e19866ab82bdec0dc41fde5273d8;p=linux-2.6-omap-h63xx.git

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index beb592fe938..64e5b4bcd96 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/notifier.h>
 #include <linux/memcontrol.h>
+#include <linux/security.h>
 
 int sysctl_panic_on_oom;
 int sysctl_oom_kill_allocating_task;
@@ -53,8 +54,7 @@ static DEFINE_SPINLOCK(zone_scan_mutex);
  *    of least surprise ... (be careful when you change it)
  */
 
-unsigned long badness(struct task_struct *p, unsigned long uptime,
-			struct mem_cgroup *mem)
+unsigned long badness(struct task_struct *p, unsigned long uptime)
 {
 	unsigned long points, cpu_time, run_time, s;
 	struct mm_struct *mm;
@@ -129,7 +129,8 @@ unsigned long badness(struct task_struct *p, unsigned long uptime,
 	 * Superuser processes are usually more important, so we make it
 	 * less likely that we kill those.
 	 */
-	if (__capable(p, CAP_SYS_ADMIN) || __capable(p, CAP_SYS_RESOURCE))
+	if (has_capability(p, CAP_SYS_ADMIN) ||
+	    has_capability(p, CAP_SYS_RESOURCE))
 		points /= 4;
 
 	/*
@@ -138,7 +139,7 @@ unsigned long badness(struct task_struct *p, unsigned long uptime,
 	 * tend to only have this flag set on applications they think
 	 * of as important.
 	 */
-	if (__capable(p, CAP_SYS_RAWIO))
+	if (has_capability(p, CAP_SYS_RAWIO))
 		points /= 4;
 
 	/*
@@ -175,12 +176,14 @@ static inline enum oom_constraint constrained_alloc(struct zonelist *zonelist,
 						    gfp_t gfp_mask)
 {
 #ifdef CONFIG_NUMA
-	struct zone **z;
+	struct zone *zone;
+	struct zoneref *z;
+	enum zone_type high_zoneidx = gfp_zone(gfp_mask);
 	nodemask_t nodes = node_states[N_HIGH_MEMORY];
 
-	for (z = zonelist->zones; *z; z++)
-		if (cpuset_zone_allowed_softwall(*z, gfp_mask))
-			node_clear(zone_to_nid(*z), nodes);
+	for_each_zone_zonelist(zone, z, zonelist, high_zoneidx)
+		if (cpuset_zone_allowed_softwall(zone, gfp_mask))
+			node_clear(zone_to_nid(zone), nodes);
 		else
 			return CONSTRAINT_CPUSET;
 
@@ -254,7 +257,7 @@ static struct task_struct *select_bad_process(unsigned long *ppoints,
 		if (p->oomkilladj == OOM_DISABLE)
 			continue;
 
-		points = badness(p, uptime.tv_sec, mem);
+		points = badness(p, uptime.tv_sec);
 		if (points > *ppoints || !chosen) {
 			chosen = p;
 			*ppoints = points;
@@ -460,29 +463,29 @@ EXPORT_SYMBOL_GPL(unregister_oom_notifier);
  * if a parallel OOM killing is already taking place that includes a zone in
  * the zonelist.  Otherwise, locks all zones in the zonelist and returns 1.
  */
-int try_set_zone_oom(struct zonelist *zonelist)
+int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_mask)
 {
-	struct zone **z;
+	struct zoneref *z;
+	struct zone *zone;
 	int ret = 1;
 
-	z = zonelist->zones;
-
 	spin_lock(&zone_scan_mutex);
-	do {
-		if (zone_is_oom_locked(*z)) {
+	for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
+		if (zone_is_oom_locked(zone)) {
 			ret = 0;
 			goto out;
 		}
-	} while (*(++z) != NULL);
+	}
+
+	for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
+		/*
+		 * Lock each zone in the zonelist under zone_scan_mutex so a
+		 * parallel invocation of try_set_zone_oom() doesn't succeed
+		 * when it shouldn't.
+		 */
+		zone_set_flag(zone, ZONE_OOM_LOCKED);
+	}
 
-	/*
-	 * Lock each zone in the zonelist under zone_scan_mutex so a parallel
-	 * invocation of try_set_zone_oom() doesn't succeed when it shouldn't.
-	 */
-	z = zonelist->zones;
-	do {
-		zone_set_flag(*z, ZONE_OOM_LOCKED);
-	} while (*(++z) != NULL);
 out:
 	spin_unlock(&zone_scan_mutex);
 	return ret;
@@ -493,16 +496,15 @@ out:
  * allocation attempts with zonelists containing them may now recall the OOM
  * killer, if necessary.
  */
-void clear_zonelist_oom(struct zonelist *zonelist)
+void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_mask)
 {
-	struct zone **z;
-
-	z = zonelist->zones;
+	struct zoneref *z;
+	struct zone *zone;
 
 	spin_lock(&zone_scan_mutex);
-	do {
-		zone_clear_flag(*z, ZONE_OOM_LOCKED);
-	} while (*(++z) != NULL);
+	for_each_zone_zonelist(zone, z, zonelist, gfp_zone(gfp_mask)) {
+		zone_clear_flag(zone, ZONE_OOM_LOCKED);
+	}
 	spin_unlock(&zone_scan_mutex);
 }