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authorWu Fengguang <fengguang.wu@intel.com>2011-01-23 10:07:47 -0600
committerWu Fengguang <fengguang.wu@intel.com>2011-10-03 21:08:56 +0800
commitc8e28ce049faa53a470c132893abbc9f2bde9420 (patch)
tree40553e72f50a613c93f4175d1d28d06abc90db65 /include/linux/backing-dev.h
parent9b13776977d45505469edc6decc93e9e3799afe2 (diff)
downloadop-kernel-dev-c8e28ce049faa53a470c132893abbc9f2bde9420.zip
op-kernel-dev-c8e28ce049faa53a470c132893abbc9f2bde9420.tar.gz
writeback: account per-bdi accumulated dirtied pages
Introduce the BDI_DIRTIED counter. It will be used for estimating the bdi's dirty bandwidth. CC: Jan Kara <jack@suse.cz> CC: Michael Rubin <mrubin@google.com> CC: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Diffstat (limited to 'include/linux/backing-dev.h')
-rw-r--r--include/linux/backing-dev.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 3b2f9cb..9ca241a 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -40,6 +40,7 @@ typedef int (congested_fn)(void *, int);
enum bdi_stat_item {
BDI_RECLAIMABLE,
BDI_WRITEBACK,
+ BDI_DIRTIED,
BDI_WRITTEN,
NR_BDI_STAT_ITEMS
};
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