Commit a1de0919 authored by Nishanth Aravamudan's avatar Nishanth Aravamudan Committed by Linus Torvalds
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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: default avatarNishanth Aravamudan <>
Signed-off-by: default avatarLinus Torvalds <>
parent 6edef97e
......@@ -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. */
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