forked from Minki/linux
cgroup: misc cleanups
* cgrp_dfl_implicit_ss_mask is ulong instead of u16 unlike other ss_masks. Make it a u16. * Move have_canfork_callback together with other callback ss_masks. Signed-off-by: Tejun Heo <tj@kernel.org>
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@ -159,7 +159,7 @@ static bool cgrp_dfl_visible;
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static u16 cgrp_dfl_inhibit_ss_mask;
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/* some controllers are implicitly enabled on the default hierarchy */
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static unsigned long cgrp_dfl_implicit_ss_mask;
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static u16 cgrp_dfl_implicit_ss_mask;
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/* The list of hierarchy roots */
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LIST_HEAD(cgroup_roots);
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@ -178,13 +178,13 @@ static DEFINE_IDR(cgroup_hierarchy_idr);
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static u64 css_serial_nr_next = 1;
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/*
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* These bitmask flags indicate whether tasks in the fork and exit paths have
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* fork/exit handlers to call. This avoids us having to do extra work in the
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* fork/exit path to check which subsystems have fork/exit callbacks.
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* These bitmasks identify subsystems with specific features to avoid
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* having to do iterative checks repeatedly.
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*/
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static u16 have_fork_callback __read_mostly;
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static u16 have_exit_callback __read_mostly;
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static u16 have_free_callback __read_mostly;
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static u16 have_canfork_callback __read_mostly;
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/* cgroup namespace for init task */
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struct cgroup_namespace init_cgroup_ns = {
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@ -195,9 +195,6 @@ struct cgroup_namespace init_cgroup_ns = {
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.root_cset = &init_css_set,
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};
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/* Ditto for the can_fork callback. */
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static u16 have_canfork_callback __read_mostly;
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static struct file_system_type cgroup2_fs_type;
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static struct cftype cgroup_base_files[];
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