From: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Fri, 2 Dec 2011 03:11:58 +0000 (+1100)
Subject: mm: account reaped page cache on inode cache pruning
X-Git-Tag: next-20111206~1^2~153
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=791f6921179f34995858516086c33e34eebb2900;p=karo-tx-linux.git

mm: account reaped page cache on inode cache pruning

Inode cache pruning indirectly reclaims page-cache by invalidating mapping
pages.  Let's account them into reclaim-state to notice this progress in
memory reclaimer.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/fs/inode.c b/fs/inode.c
index ee4e66b998f4..1f6c48d59a0d 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -692,6 +692,8 @@ void prune_icache_sb(struct super_block *sb, int nr_to_scan)
 	else
 		__count_vm_events(PGINODESTEAL, reap);
 	spin_unlock(&sb->s_inode_lru_lock);
+	if (current->reclaim_state)
+		current->reclaim_state->reclaimed_slab += reap;
 
 	dispose_list(&freeable);
 }