mm: count reclaimable pages per BDI
Count per BDI reclaimable pages; nr_reclaimable = nr_dirty + nr_unstable.
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>
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index f7677ff..bfae09d 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -27,6 +27,7 @@
typedef int (congested_fn)(void *, int);
enum bdi_stat_item {
+ BDI_RECLAIMABLE,
NR_BDI_STAT_ITEMS
};