writeback: account per-bdi accumulated written pages
authorJan Kara <jack@suse.cz>
Thu, 9 Dec 2010 04:44:24 +0000 (22:44 -0600)
committerWu Fengguang <fengguang.wu@intel.com>
Sun, 10 Jul 2011 05:09:01 +0000 (22:09 -0700)
commitf7d2b1ecd0c714adefc7d3a942ef87beb828a763
tree7c5adb0abd73d3ad449b94698dadbaceb573a6f4
parentd46db3d58233be4be980eb1e42eebe7808bcabab
writeback: account per-bdi accumulated written pages

Introduce the BDI_WRITTEN counter. It will be used for estimating the
bdi's write bandwidth.

Peter Zijlstra <a.p.zijlstra@chello.nl>:
Move BDI_WRITTEN accounting into __bdi_writeout_inc().
This will cover and fix fuse, which only calls bdi_writeout_inc().

CC: Michael Rubin <mrubin@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
include/linux/backing-dev.h
mm/backing-dev.c
mm/page-writeback.c