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Commit d7c9e99a authored by Alexey Gladkov's avatar Alexey Gladkov Committed by Eric W. Biederman
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Reimplement RLIMIT_MEMLOCK on top of ucounts



The rlimit counter is tied to uid in the user_namespace. This allows
rlimit values to be specified in userns even if they are already
globally exceeded by the user. However, the value of the previous
user_namespaces cannot be exceeded.

Changelog

v11:
* Fix issue found by lkp robot.

v8:
* Fix issues found by lkp-tests project.

v7:
* Keep only ucounts for RLIMIT_MEMLOCK checks instead of struct cred.

v6:
* Fix bug in hugetlb_file_setup() detected by trinity.

Reported-by: default avatarkernel test robot <oliver.sang@intel.com>
Reported-by: default avatarkernel test robot <lkp@intel.com>
Signed-off-by: default avatarAlexey Gladkov <legion@kernel.org>
Link: https://lkml.kernel.org/r/970d50c70c71bfd4496e0e8d2a0a32feebebb350.1619094428.git.legion@kernel.org


Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
parent d6469690
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