]> git.baikalelectronics.ru Git - kernel.git/commit
cgroup: re-hash init_css_set after subsystems are initialized
authorTejun Heo <tj@kernel.org>
Thu, 3 Mar 2016 14:57:57 +0000 (09:57 -0500)
committerTejun Heo <tj@kernel.org>
Thu, 3 Mar 2016 14:57:57 +0000 (09:57 -0500)
commita027cb41a46fa98e99da011d636f70c4ae4a1ed4
treef3278fe0e6d933d2a89f94575c747bbbdb5fd404
parente5565c6713f752dc6c6d2291bc1292c26d4fe2c6
cgroup: re-hash init_css_set after subsystems are initialized

css_sets are hashed by their subsys[] contents and in cgroup_init()
init_css_set is hashed early, before subsystem inits, when all entries
in its subsys[] are NULL, so that cgroup_dfl_root initialization can
find and link to it.  As subsystems are initialized,
init_css_set.subsys[] is filled up but the hashing is never updated
making init_css_set hashed in the wrong place.  While incorrect, this
doesn't cause a critical failure as css_set management code would
create an identical css_set dynamically.

Fix it by rehashing init_css_set after subsystems are initialized.
While at it, drop unnecessary @key local variable.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Zefan Li <lizefan@huawei.com>
kernel/cgroup.c