1 files changed, 46 insertions, 12 deletions

diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index 9b68658b6bb8..0fffaeedee76 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -125,7 +125,7 @@ static void usage(void)
 		"-n|--numa              Show NUMA information\n"
 		"-N|--lines=K           Show the first K slabs\n"
 		"-o|--ops               Show kmem_cache_ops\n"
-		"-P|--partial		Sort by number of partial slabs\n"
+		"-P|--partial           Sort by number of partial slabs\n"
 		"-r|--report            Detailed report on single slabs\n"
 		"-s|--shrink            Shrink slabs\n"
 		"-S|--Size              Sort by size\n"
@@ -233,6 +233,24 @@ static unsigned long read_slab_obj(struct slabinfo *s, const char *name)
 	return l;
 }
 
+static unsigned long read_debug_slab_obj(struct slabinfo *s, const char *name)
+{
+	char x[128];
+	FILE *f;
+	size_t l;
+
+	snprintf(x, 128, "/sys/kernel/debug/slab/%s/%s", s->name, name);
+	f = fopen(x, "r");
+	if (!f) {
+		buffer[0] = 0;
+		l = 0;
+	} else {
+		l = fread(buffer, 1, sizeof(buffer), f);
+		buffer[l] = 0;
+		fclose(f);
+	}
+	return l;
+}
 
 /*
  * Put a size string together
@@ -409,14 +427,18 @@ static void show_tracking(struct slabinfo *s)
 {
 	printf("\n%s: Kernel object allocation\n", s->name);
 	printf("-----------------------------------------------------------------------\n");
-	if (read_slab_obj(s, "alloc_calls"))
+	if (read_debug_slab_obj(s, "alloc_traces"))
+		printf("%s", buffer);
+	else if (read_slab_obj(s, "alloc_calls"))
 		printf("%s", buffer);
 	else
 		printf("No Data\n");
 
 	printf("\n%s: Kernel object freeing\n", s->name);
 	printf("------------------------------------------------------------------------\n");
-	if (read_slab_obj(s, "free_calls"))
+	if (read_debug_slab_obj(s, "free_traces"))
+		printf("%s", buffer);
+	else if (read_slab_obj(s, "free_calls"))
 		printf("%s", buffer);
 	else
 		printf("No Data\n");
@@ -1045,15 +1067,27 @@ static void sort_slabs(void)
 		for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) {
 			int result;
 
-			if (sort_size)
-				result = slab_size(s1) < slab_size(s2);
-			else if (sort_active)
-				result = slab_activity(s1) < slab_activity(s2);
-			else if (sort_loss)
-				result = slab_waste(s1) < slab_waste(s2);
-			else if (sort_partial)
-				result = s1->partial < s2->partial;
-			else
+			if (sort_size) {
+				if (slab_size(s1) == slab_size(s2))
+					result = strcasecmp(s1->name, s2->name);
+				else
+					result = slab_size(s1) < slab_size(s2);
+			} else if (sort_active) {
+				if (slab_activity(s1) == slab_activity(s2))
+					result = strcasecmp(s1->name, s2->name);
+				else
+					result = slab_activity(s1) < slab_activity(s2);
+			} else if (sort_loss) {
+				if (slab_waste(s1) == slab_waste(s2))
+					result = strcasecmp(s1->name, s2->name);
+				else
+					result = slab_waste(s1) < slab_waste(s2);
+			} else if (sort_partial) {
+				if (s1->partial == s2->partial)
+					result = strcasecmp(s1->name, s2->name);
+				else
+					result = s1->partial < s2->partial;
+			} else
 				result = strcasecmp(s1->name, s2->name);
 
 			if (show_inverted)