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mm/page-writeback.c: update stale account_page_redirty() comment 

Commit 93f78d8828 ("writeback: move backing_dev_info->bdi_stat[] into
bdi_writeback") replaced BDI_DIRTIED with WB_DIRTIED in
account_page_redirty().  Update comment to track that change.

  BDI_DIRTIED => WB_DIRTIED
  BDI_WRITTEN => WB_WRITTEN

Link: http://lkml.kernel.org/r/20180625171526.173483-1-gthelen@google.com
Signed-off-by: Greg Thelen <gthelen@google.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Greg Thelen 2018-08-17 15:46:47 -07:00 committed by Linus Torvalds
parent f745c6f5fe
commit dcfe4df3d5
1 changed files with 2 additions and 2 deletions
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mm/page-writeback.c
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@ -2490,8 +2490,8 @@ EXPORT_SYMBOL(__set_page_dirty_nobuffers);
/*
* Call this whenever redirtying a page, to de-account the dirty counters
* (NR_DIRTIED, BDI_DIRTIED, tsk->nr_dirtied), so that they match the written
* counters (NR_WRITTEN, BDI_WRITTEN) in long term. The mismatches will lead to
* (NR_DIRTIED, WB_DIRTIED, tsk->nr_dirtied), so that they match the written
* counters (NR_WRITTEN, WB_WRITTEN) in long term. The mismatches will lead to
* systematic errors in balanced_dirty_ratelimit and the dirty pages position
* control.
*/