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| author | Jan Kara <jack@suse.cz> | 2010-12-08 22:44:24 -0600 |
|---|---|---|
| committer | Wu Fengguang <fengguang.wu@intel.com> | 2011-07-09 22:09:01 -0700 |
| commit | f7d2b1ecd0c714adefc7d3a942ef87beb828a763 (patch) | |
| tree | 7c5adb0abd73d3ad449b94698dadbaceb573a6f4 /mm/page-writeback.c | |
| parent | d46db3d58233be4be980eb1e42eebe7808bcabab (diff) | |
| download | lwn-f7d2b1ecd0c714adefc7d3a942ef87beb828a763.tar.gz lwn-f7d2b1ecd0c714adefc7d3a942ef87beb828a763.zip | |
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>
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 9d6ac2b6d942..8cd71376c63d 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -219,6 +219,7 @@ int dirty_bytes_handler(struct ctl_table *table, int write, */ static inline void __bdi_writeout_inc(struct backing_dev_info *bdi) { + __inc_bdi_stat(bdi, BDI_WRITTEN); __prop_inc_percpu_max(&vm_completions, &bdi->completions, bdi->max_prop_frac); } |