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authorShakeel Butt <shakeelb@google.com>2021-05-12 13:19:46 -0700
committerTejun Heo <tj@kernel.org>2021-05-20 12:27:53 -0400
commit45e1ba40837ac2f6f4d4716bddb8d44bd7e4a251 (patch)
treeab03515541be5c54503f648dee6354033793b36e /include
parentc3d0e3fd41b7f0f5d5d5b6022ab7e813f04ea727 (diff)
cgroup: disable controllers at parse time
This patch effectively reverts the commit a3e72739b7a7 ("cgroup: fix too early usage of static_branch_disable()"). The commit 6041186a3258 ("init: initialize jump labels before command line option parsing") has moved the jump_label_init() before parse_args() which has made the commit a3e72739b7a7 unnecessary. On the other hand there are consequences of disabling the controllers later as there are subsystems doing the controller checks for different decisions. One such incident is reported [1] regarding the memory controller and its impact on memory reclaim code. [1] https://lore.kernel.org/linux-mm/921e53f3-4b13-aab8-4a9e-e83ff15371e4@nec.com Signed-off-by: Shakeel Butt <shakeelb@google.com> Reported-by: NOMURA JUNICHI(野村 淳一) <junichi.nomura@nec.com> Signed-off-by: Tejun Heo <tj@kernel.org> Tested-by: Jun'ichi Nomura <junichi.nomura@nec.com>
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