linux-kernel - [PATCH] hugetlb: /proc/meminfo shows data for all sizes of hugepages

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Date:	Mon,  7 Mar 2011 14:05:55 +0100
From:	Petr Holasek <pholasek@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	emunson@...bm.net, anton@...hat.com,
	Petr Holasek <pholasek@...hat.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Mel Gorman <mel@....ul.ie>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Wu Fengguang <fengguang.wu@...el.com>, linux-mm@...ck.org
Subject: [PATCH] hugetlb: /proc/meminfo shows data for all sizes of hugepages

/proc/meminfo file shows data for all used sizes of hugepages
on system, not only for default hugepage size.

Signed-off-by: Petr Holasek <pholasek@...hat.com>
---
 mm/hugetlb.c |   26 ++++++++++++++------------
 1 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index bb0b7c1..7919849 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1963,18 +1963,20 @@ out:
 
 void hugetlb_report_meminfo(struct seq_file *m)
 {
-	struct hstate *h = &default_hstate;
-	seq_printf(m,
-			"HugePages_Total:   %5lu\n"
-			"HugePages_Free:    %5lu\n"
-			"HugePages_Rsvd:    %5lu\n"
-			"HugePages_Surp:    %5lu\n"
-			"Hugepagesize:   %8lu kB\n",
-			h->nr_huge_pages,
-			h->free_huge_pages,
-			h->resv_huge_pages,
-			h->surplus_huge_pages,
-			1UL << (huge_page_order(h) + PAGE_SHIFT - 10));
+	struct hstate *h;
+
+	for_each_hstate(h)
+		seq_printf(m,
+				"HugePages_Total:   %5lu\n"
+				"HugePages_Free:    %5lu\n"
+				"HugePages_Rsvd:    %5lu\n"
+				"HugePages_Surp:    %5lu\n"
+				"Hugepagesize:   %8lu kB\n",
+				h->nr_huge_pages,
+				h->free_huge_pages,
+				h->resv_huge_pages,
+				h->surplus_huge_pages,
+				1UL << (huge_page_order(h) + PAGE_SHIFT - 10));
 }
 
 int hugetlb_report_node_meminfo(int nid, char *buf)
-- 
1.7.1

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