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Implement /dev/userfaultfd support for uffd context - #12871

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green-br wants to merge 1 commit into
ofiwg:mainfrom
green-br:userfaultfd_dev
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green-br wants to merge 1 commit into
ofiwg:mainfrom
green-br:userfaultfd_dev

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Add support for /dev/userfaultfd to obtain uffd context. Was found it would be useful when using in Kubernetes environment due to not having to enable extra capabilities e.g. CAP_SYS_*

Thought a PR was worth showing. Have built but did not find a good test for it.

Add support for /dev/userfaultfd to obtain uffd context.
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