Hi, https://spinics.net/lists/cgroups/msg23131.html Thanks, On 2020/1/14 20:09, Alex Shi wrote: > After commit 37ff9f8f4742 ("cgroup: make cgroup[_taskset]_migrate() > take cgroup_r', No one use this macro. > So it'e better to remove. > > Signed-off-by: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx> > Cc: Tejun Heo <tj@xxxxxxxxxx> > Cc: Li Zefan <lizefan@xxxxxxxxxx> > Cc: Johannes Weiner <hannes@xxxxxxxxxxx> > Cc: cgroups@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > --- > kernel/cgroup/cgroup.c | 15 --------------- > 1 file changed, 15 deletions(-) > > diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c > index 735af8f15f95..7d916ad33e59 100644 > --- a/kernel/cgroup/cgroup.c > +++ b/kernel/cgroup/cgroup.c > @@ -663,21 +663,6 @@ struct cgroup_subsys_state *of_css(struct kernfs_open_file *of) > else > > /** > - * for_each_e_css - iterate all effective css's of a cgroup > - * @css: the iteration cursor > - * @ssid: the index of the subsystem, CGROUP_SUBSYS_COUNT after reaching the end > - * @cgrp: the target cgroup to iterate css's of > - * > - * Should be called under cgroup_[tree_]mutex. > - */ > -#define for_each_e_css(css, ssid, cgrp) \ > - for ((ssid) = 0; (ssid) < CGROUP_SUBSYS_COUNT; (ssid)++) \ > - if (!((css) = cgroup_e_css_by_mask(cgrp, \ > - cgroup_subsys[(ssid)]))) \ > - ; \ > - else > - > -/** > * do_each_subsys_mask - filter for_each_subsys with a bitmask > * @ss: the iteration cursor > * @ssid: the index of @ss, CGROUP_SUBSYS_COUNT after reaching the end >