[Devel] [PATCH rh7 06/14] Port diff-ve-proc-add-buffers-field-to-meminfo

[Vladimir Davydov]

Author: Dmitry Guryanov
Email: dguryanov at parallels.com
Subject: proc: add Buffers field to meminfo
Date: Mon, 5 Aug 2013 16:22:03 +0400

MediaTemple has experienced a problem with some reporting tool
which wants Buffers: string in meminfo.
Strings in meminfo in ve0 and container was the same on 2.6.18,
but on 2.6.32 they are different. Let's add only Buffers: string
now and check if it will fix the problem.

https://jira.sw.ru/browse/PSBM-19448

Signed-off-by: Dmitry Guryanov <dguryanov at parallels.com>
Acked-by: Konstantin Khlebnikov <khlebnikov at openvz.org>
=============================================================================

Actually, we need to show something meaningful there now, because
buffers are now accounted to CT RAM via kmemcg - will be done in the
scope of PSBM-34444.

Related to https://jira.sw.ru/browse/PSBM-33650

Signed-off-by: Vladimir Davydov <vdavydov at parallels.com>
---
 fs/proc/meminfo.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index e352241ffd98..16960f77027d 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -31,6 +31,7 @@ static int meminfo_proc_show_mi(struct seq_file *m, struct meminfo *mi)
 		"MemTotal:       %8lu kB\n"
 		"MemFree:        %8lu kB\n"
 		"Cached:         %8lu kB\n"
+		"Buffers:        %8lu kB\n"
 		"Active:         %8lu kB\n"
 		"Inactive:       %8lu kB\n"
 		"Active(anon):   %8lu kB\n"
@@ -52,6 +53,7 @@ static int meminfo_proc_show_mi(struct seq_file *m, struct meminfo *mi)
 		K(mi->si->totalram),
 		K(mi->si->freeram),
 		K(mi->cached),
+		K(0L),
 		K(mi->pages[LRU_ACTIVE_ANON]   + mi->pages[LRU_ACTIVE_FILE]),
 		K(mi->pages[LRU_INACTIVE_ANON] + mi->pages[LRU_INACTIVE_FILE]),
 		K(mi->pages[LRU_ACTIVE_ANON]),
-- 
2.1.4