Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into rt/head

2 files changed, 17 insertions, 21 deletions

diff --git a/mm/migrate.c b/mm/migrate.c
index 9a0db5bbabe4..880bd592d38e 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1002,33 +1002,27 @@ static int do_pages_stat(struct mm_struct *mm, unsigned long nr_pages,
 #define DO_PAGES_STAT_CHUNK_NR 16
 	const void __user *chunk_pages[DO_PAGES_STAT_CHUNK_NR];
 	int chunk_status[DO_PAGES_STAT_CHUNK_NR];
-	unsigned long i, chunk_nr = DO_PAGES_STAT_CHUNK_NR;
-	int err;
 
-	for (i = 0; i < nr_pages; i += chunk_nr) {
-		if (chunk_nr > nr_pages - i)
-			chunk_nr = nr_pages - i;
+	while (nr_pages) {
+		unsigned long chunk_nr;
 
-		err = copy_from_user(chunk_pages, &pages[i],
-				     chunk_nr * sizeof(*chunk_pages));
-		if (err) {
-			err = -EFAULT;
-			goto out;
-		}
+		chunk_nr = nr_pages;
+		if (chunk_nr > DO_PAGES_STAT_CHUNK_NR)
+			chunk_nr = DO_PAGES_STAT_CHUNK_NR;
+
+		if (copy_from_user(chunk_pages, pages, chunk_nr * sizeof(*chunk_pages)))
+			break;
 
 		do_pages_stat_array(mm, chunk_nr, chunk_pages, chunk_status);
 
-		err = copy_to_user(&status[i], chunk_status,
-				   chunk_nr * sizeof(*chunk_status));
-		if (err) {
-			err = -EFAULT;
-			goto out;
-		}
-	}
-	err = 0;
+		if (copy_to_user(status, chunk_status, chunk_nr * sizeof(*status)))
+			break;
 
-out:
-	return err;
+		pages += chunk_nr;
+		status += chunk_nr;
+		nr_pages -= chunk_nr;
+	}
+	return nr_pages ? -EFAULT : 0;
 }
 
 /*
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index c1fbaf5fc01f..921059523f5a 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -459,6 +459,8 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
 	list_for_each_entry(c, &p->children, sibling) {
 		if (c->mm == p->mm)
 			continue;
+		if (mem && !task_in_mem_cgroup(c, mem))
+			continue;
 		if (!oom_kill_task(c))
 			return 0;
 	}