commit 69cb51d18c1ed593009d9a620cac49d0dcf15dc8
author Peter Zijlstra <a.p.zijlstra@chello.nl> Tue Oct 16 23:25:48 2007 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Wed Oct 17 08:42:45 2007 -0700
tree f26a1245b638e7421a0afd93305fd1c556867d49
parent c9e51e4180696aa67915ec5665e4ec74125565de

mm: count writeback pages per BDI

Count per BDI writeback pages.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/backing-dev.h

diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index bfae09d..4d9222c 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -28,6 +28,7 @@
 
 enum bdi_stat_item {
 	BDI_RECLAIMABLE,
+	BDI_WRITEBACK,
 	NR_BDI_STAT_ITEMS
 };