Queued upstream, do not merge.

Justin M. Forbesrequested to merge
jmflinuxtx/kernel-ark:revert_pidfd into os-build

This reverts commit 3b5bbe79.

Eric reported that systemd-shutdown gets broken by blocking the creating of pidfds for kthreads as older versions seems to rely on being able to create a pidfd for any process in /proc.

Reported-by: Eric Biggers ebiggers@kernel.org Link: https://lore.kernel.org/r/20240818035818.GA1929@sol.localdomain Signed-off-by: Christian Brauner brauner@kernel.org

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