3 files changed, 22 insertions, 0 deletions

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 16e4e9a643fb..3a62df310f2e 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -58,6 +58,7 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
 void hugetlb_report_meminfo(struct seq_file *);
 int hugetlb_report_node_meminfo(int, char *);
+void hugetlb_show_meminfo(void);
 unsigned long hugetlb_total_pages(void);
 int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
                         unsigned long address, unsigned int flags);
@@ -114,6 +115,9 @@ static inline void hugetlb_report_meminfo(struct seq_file *m)
 {
 }
 #define hugetlb_report_node_meminfo(n, buf)     0
+static inline void hugetlb_show_meminfo(void)
+{
+}
 #define follow_huge_pmd(mm, addr, pmd, write)   NULL
 #define follow_huge_pud(mm, addr, pud, write)   NULL
 #define prepare_hugepage_range(file, addr, len) (-EINVAL)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 73b864a32017..9b9aeef8e590 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2121,6 +2121,21 @@ int hugetlb_report_node_meminfo(int nid, char *buf)
                 nid, h->surplus_huge_pages_node[nid]);
 }
 
+void hugetlb_show_meminfo(void)
+{
+        struct hstate *h;
+        int nid;
+
+        for_each_node_state(nid, N_MEMORY)
+                for_each_hstate(h)
+                        pr_info("Node %d hugepages_total=%u hugepages_free=%u hugepages_surp=%u hugepages_size=%lukB\n",
+                                nid,
+                                h->nr_huge_pages_node[nid],
+                                h->free_huge_pages_node[nid],
+                                h->surplus_huge_pages_node[nid],
+                                1UL << (huge_page_order(h) + PAGE_SHIFT - 10));
+}
+
 /* Return the number pages of memory we physically have, in PAGE_SIZE units. */
 unsigned long hugetlb_total_pages(void)
 {
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 72da11c6804d..7350986bbf99 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -58,6 +58,7 @@
 #include <linux/prefetch.h>
 #include <linux/migrate.h>
 #include <linux/page-debug-flags.h>
+#include <linux/hugetlb.h>
 #include <linux/sched/rt.h>
 
 #include <asm/tlbflush.h>
@@ -3113,6 +3114,8 @@ void show_free_areas(unsigned int filter)
                 printk("= %lukB\n", K(total));
         }
 
+        hugetlb_show_meminfo();
+
         printk("%ld total pagecache pages\n", global_page_state(NR_FILE_PAGES));
 
         show_swap_cache_info();