On 11/27/19 4:44 AM, Giuseppe Scrivano wrote: > In the effort of supporting cgroups v2 into Kubernetes, I stumped on > the lack of the hugetlb controller. > > When the controller is enabled, it exposes three new files for each > hugetlb size on non-root cgroups: > > - hugetlb.<hugepagesize>.current > - hugetlb.<hugepagesize>.max > - hugetlb.<hugepagesize>.events > > The differences with the legacy hierarchy are in the file names and > using the value "max" instead of "-1" to disable a limit. > > The file .limit_in_bytes is renamed to .max. > > The file .usage_in_bytes is renamed to .usage. > > .failcnt is not provided as a single file anymore, but its value can > be read in the new flat-keyed file .events, through the "max" key. > > Signed-off-by: Giuseppe Scrivano <gscrivan@xxxxxxxxxx> Thanks for doing this. And, thanks to the people who know more than me about cgroups for commenting. This has no impacts on core hugetlb code, and appears to do what is needed for cgroups v2. Acked-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> -- Mike Kravetz
