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blk-iocost: Fix some typos in comments

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Fix some typos in comments.

Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Baolin Wang 2020-11-26 16:16:11 +08:00 committed by Jens Axboe
parent 45dc656aeb
commit 5ba1add216
1 changed files with 6 additions and 6 deletions
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12
block/blk-iocost.c
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@ -39,7 +39,7 @@
* On top of that, a size cost proportional to the length of the IO is
* added. While simple, this model captures the operational
* characteristics of a wide varienty of devices well enough. Default
* paramters for several different classes of devices are provided and the
* parameters for several different classes of devices are provided and the
* parameters can be configured from userspace via
* /sys/fs/cgroup/io.cost.model.
*
@ -77,7 +77,7 @@
*
* This constitutes the basis of IO capacity distribution. Each cgroup's
* vtime is running at a rate determined by its hweight. A cgroup tracks
* the vtime consumed by past IOs and can issue a new IO iff doing so
* the vtime consumed by past IOs and can issue a new IO if doing so
* wouldn't outrun the current device vtime. Otherwise, the IO is
* suspended until the vtime has progressed enough to cover it.
*
@ -155,7 +155,7 @@
* Instead of debugfs or other clumsy monitoring mechanisms, this
* controller uses a drgn based monitoring script -
* tools/cgroup/iocost_monitor.py. For details on drgn, please see
* https://github.com/osandov/drgn. The ouput looks like the following.
* https://github.com/osandov/drgn. The output looks like the following.
*
* sdb RUN per=300ms cur_per=234.218:v203.695 busy= +1 vrate= 62.12%
* active weight hweight% inflt% dbt delay usages%
@ -492,7 +492,7 @@ struct ioc_gq {
/*
* `vtime` is this iocg's vtime cursor which progresses as IOs are
* issued. If lagging behind device vtime, the delta represents
* the currently available IO budget. If runnning ahead, the
* the currently available IO budget. If running ahead, the
* overage.
*
* `vtime_done` is the same but progressed on completion rather
@ -1046,7 +1046,7 @@ static void __propagate_weights(struct ioc_gq *iocg, u32 active, u32 inuse,
/*
* The delta between inuse and active sums indicates that
* that much of weight is being given away. Parent's inuse
* much of weight is being given away. Parent's inuse
* and active should reflect the ratio.
*/
if (parent->child_active_sum) {
@ -2400,7 +2400,7 @@ static u64 adjust_inuse_and_calc_cost(struct ioc_gq *iocg, u64 vtime,
return cost;
/*
* We only increase inuse during period and do so iff the margin has
* We only increase inuse during period and do so if the margin has
* deteriorated since the previous adjustment.
*/
if (margin >= iocg->saved_margin || margin >= margins->low ||