blk-iocost: Fix some typos in comments (5ba1add2) · Commits · 戴 / test

block/blk-iocost.c

+6 −6

Original line number	Diff line number	Diff line
		@@ -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 \|\|

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