commit d64696905554e919321e31afc210606653b8f6a4
author Alexey Gladkov <legion@kernel.org> Thu Apr 22 14:27:13 2021 +0200
committer Eric W. Biederman <ebiederm@xmission.com> Fri Apr 30 14:14:02 2021 -0500
tree 7c153f685f7e89823fc6c0b3e420d8fff12037df
parent 6e52a9f0532f912af37bab4caf18b57d1b9845f4

Reimplement RLIMIT_SIGPENDING 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:
* Revert most of changes to fix performance issues.

v10:
* Fix memory leak on get_ucounts failure.

Signed-off-by: Alexey Gladkov <legion@kernel.org>
Link: https://lkml.kernel.org/r/df9d7764dddd50f28616b7840de74ec0f81711a8.1619094428.git.legion@kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>