hugetlb: indicate surplus huge page counts in per-node meminfo

Currently we show the surplus hugetlb pool state in /proc/meminfo, but not in the per-node meminfo files, even though we track the information on a per-node basis. Printing it there can help track down dynamic pool bugs including the one in the follow-on patch. Signed-off-by: Nishanth Aravamudan <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kyagi · Mar 26, 2008 · a1de091 · a1de091
1 parent 6edef97
commit a1de091
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
@@ -671,9 +671,11 @@ int hugetlb_report_node_meminfo(int nid, char *buf)
 {
 	return sprintf(buf,
 		"Node %d HugePages_Total: %5u\n"
-		"Node %d HugePages_Free:  %5u\n",
+		"Node %d HugePages_Free:  %5u\n"
+		"Node %d HugePages_Surp:  %5u\n",
 		nid, nr_huge_pages_node[nid],
-		nid, free_huge_pages_node[nid]);
+		nid, free_huge_pages_node[nid],
+		nid, surplus_huge_pages_node[nid]);
 }
 
 /* Return the number pages of memory we physically have, in PAGE_SIZE units. */