qianzhangxa commented on code in PR #446:
URL: https://github.com/apache/mesos/pull/446#discussion_r1027276119
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src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp:
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@@ -107,230 +108,240 @@ Future<ResourceStatistics> BlkioSubsystemProcess::usage(
CgroupInfo::Blkio::CFQ::Statistics totalCfqRecursive;
CgroupInfo::Blkio::Throttling::Statistics totalThrottling;
- // Get CFQ statistics.
- Try<vector<cgroups::blkio::Value>> time = cfq::time(hierarchy, cgroup);
- if (time.isError()) {
- return Failure(time.error());
+ // Get CFQ statistics, if available - CFQ was removed from kernel 5.0.
Review Comment:
Can you please add
https://github.com/torvalds/linux/commit/f382fb0bcef4c37dc049e9f6963e3baf204d815c
in this comment for more context?
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