diff options
| author | Tejun Heo <tj@kernel.org> | 2017-01-20 20:06:08 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2017-01-31 01:09:07 +0300 |
| commit | b807421a720ff00bc31774d254f51313f4a7656b (patch) | |
| tree | 17da361bdaa0625b594ebc4b3172fdf719a004bf /kernel/cgroup | |
| parent | bdf3d06bedebd31539b68b4a744054f994ecc2e1 (diff) | |
| download | linux-b807421a720ff00bc31774d254f51313f4a7656b.tar.xz | |
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>
Diffstat (limited to 'kernel/cgroup')
| -rw-r--r-- | kernel/cgroup/cgroup.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 0dcc4c7e935e..a99b15f9b577 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -159,7 +159,7 @@ static bool cgrp_dfl_visible; static u16 cgrp_dfl_inhibit_ss_mask; /* some controllers are implicitly enabled on the default hierarchy */ -static unsigned long cgrp_dfl_implicit_ss_mask; +static u16 cgrp_dfl_implicit_ss_mask; /* The list of hierarchy roots */ LIST_HEAD(cgroup_roots); @@ -178,13 +178,13 @@ static DEFINE_IDR(cgroup_hierarchy_idr); static u64 css_serial_nr_next = 1; /* - * These bitmask flags indicate whether tasks in the fork and exit paths have - * fork/exit handlers to call. This avoids us having to do extra work in the - * fork/exit path to check which subsystems have fork/exit callbacks. + * These bitmasks identify subsystems with specific features to avoid + * having to do iterative checks repeatedly. */ static u16 have_fork_callback __read_mostly; static u16 have_exit_callback __read_mostly; static u16 have_free_callback __read_mostly; +static u16 have_canfork_callback __read_mostly; /* cgroup namespace for init task */ struct cgroup_namespace init_cgroup_ns = { @@ -195,9 +195,6 @@ struct cgroup_namespace init_cgroup_ns = { .root_cset = &init_css_set, }; -/* Ditto for the can_fork callback. */ -static u16 have_canfork_callback __read_mostly; - static struct file_system_type cgroup2_fs_type; static struct cftype cgroup_base_files[]; |