linux

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Tycho Andersen b82e91ae63 cgroup1: don't call release_agent when it is ""

[ Upstream commit 2e5383d7904e60529136727e49629a82058a5607 ]

Older (and maybe current) versions of systemd set release_agent to "" when
shutting down, but do not set notify_on_release to 0.

Since 64e90a8acb85 ("Introduce STATIC_USERMODEHELPER to mediate
call_usermodehelper()"), we filter out such calls when the user mode helper
path is "". However, when used in conjunction with an actual (i.e. non "")
STATIC_USERMODEHELPER, the path is never "", so the real usermode helper
will be called with argv[0] == "".

Let's avoid this by not invoking the release_agent when it is "".

Signed-off-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-04-01 11:01:51 +02:00

cgroup-internal.h

cgroup: make TRACE_CGROUP_PATH irq-safe

2019-04-19 11:26:49 -07:00

cgroup-v1.c

cgroup1: don't call release_agent when it is ""

2020-04-01 11:01:51 +02:00

cgroup.c

cgroup: Iterate tasks that did not finish do_exit()

2020-03-18 07:17:48 +01:00

cpuset.c

sched/topology: Don't try to build empty sched domains