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writeback: Fix some comment errors

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Signed-off-by: Wanpeng Li <liwp@linux.vnet.ibm.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
This commit is contained in:
Wanpeng Li
2012-06-09 11:10:55 +08:00
committed by Fengguang Wu
parent eb608e3a34
commit 331cbdeede
4 changed files with 6 additions and 6 deletions
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4
mm/page-writeback.c
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@@ -946,7 +946,7 @@ static void bdi_update_dirty_ratelimit(struct backing_dev_info *bdi,
* bdi->dirty_ratelimit = balanced_dirty_ratelimit;
*
* However to get a more stable dirty_ratelimit, the below elaborated
* code makes use of task_ratelimit to filter out sigular points and
* code makes use of task_ratelimit to filter out singular points and
* limit the step size.
*
* The below code essentially only uses the relative value of
@@ -969,7 +969,7 @@ static void bdi_update_dirty_ratelimit(struct backing_dev_info *bdi,
* feel and care are stable dirty rate and small position error.
*
* |task_ratelimit - dirty_ratelimit| is used to limit the step size
* and filter out the sigular points of balanced_dirty_ratelimit. Which
* and filter out the singular points of balanced_dirty_ratelimit. Which
* keeps jumping around randomly and can even leap far away at times
* due to the small 200ms estimation period of dirty_rate (we want to
* keep that period small to reduce time lags).