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| author | Tejun Heo <tj@kernel.org> | 2014-11-18 08:49:52 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-11-18 08:49:52 +0100 |
| commit | eeecbd1971517103e06f11750dd1a9a1dc37e4e6 (patch) | |
| tree | ace58390ca7f2e7f7530a8a8b23d9449a00ae3be /mm/page_alloc.c | |
| parent | cgroup: add cgroup_subsys->css_e_css_changed() (diff) | |
| download | linux-eeecbd1971517103e06f11750dd1a9a1dc37e4e6.tar.xz linux-eeecbd1971517103e06f11750dd1a9a1dc37e4e6.zip | |
cgroup: implement cgroup_get_e_css()
Implement cgroup_get_e_css() which finds and gets the effective css
for the specified cgroup and subsystem combination. This function
always returns a valid pinned css. This will be used by cgroup
writeback support.
While at it, add comment to cgroup_e_css() to explain why that
function is different from cgroup_get_e_css() and has to test
cgrp->child_subsys_mask instead of cgroup_css(cgrp, ss).
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Zefan Li <lizefan@huawei.com>
Diffstat (limited to 'mm/page_alloc.c')
0 files changed, 0 insertions, 0 deletions