[RFC] mm:change meminfo cached calculation

[Wang, Yalin]

This patch subtract sharedram from cached,
sharedram can only be swap into swap partitions,
they should be treated as swap pages, not as cached pages.

Signed-off-by: Yalin Wang <yalin.wang@xxxxxxxxxxxxxx>
---
 fs/proc/meminfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index d3ebf2e..2b598a6 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -45,7 +45,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 	committed = percpu_counter_read_positive(&vm_committed_as);
 
 	cached = global_page_state(NR_FILE_PAGES) -
-			total_swapcache_pages() - i.bufferram;
+			total_swapcache_pages() - i.bufferram - i.sharedram;
 	if (cached < 0)
 		cached = 0;
 
-- 
2.1.3
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