tree 49fe42d93161d10edbf9c480bc02834cd71c64f5
parent 0e9469dfdb337ead91526eb352229d05743e1f5a
author Jan Kundrát <kundrat@cesnet.cz> 1604410105 +0100
committer Jan Kundrát <kundrat@cesnet.cz> 1604410530 +0100

kernel: enable namespaces

We've been already trying to enable NET_NS (and others), but all
namespaces are apparently guarded by this one as well.

As a bonus, this should fix that crash triggered by systemd-networkd
v246 with SYSTEMD_LOG_LEVEL=debug .

Reported on the linux-fsdevel ML ("Null pointer dereference in nsfs_evict with
CONFIG_NET_NS=n triggered via systemd-networkd's debugging"), and thanks
a ton to Vlastimil Babka <vbabka@suse.cz> for helping me debug this.

Change-Id: Ib6097d009ce2b503f4c53df6eb100b0018b4611f
Bug: https://lore.kernel.org/linux-fsdevel/aa151d26-37a1-4836-b28f-33c46d9894e2@cesnet.cz/T/#u