This is an alternate version of the pids v7 patchset[1]. The main
difference is that this version doesn't add a new callback for
an association change during a fork -- it lets subsystems handle such
cases by themselves by allowing for a private pointer to be passed
around between the callbacks.
* Pass a cgroup_fork_state structure between the
cgroup_{can,cancel,post}_fork hooks which stores the private opaque
pointer for each subsystem. This allows for subsystems to decide which
(if any) state to save in the can_fork callback to refer back to in
the post_fork callback.
[1]: https://lkml.org/lkml/2015/3/31/1058
Aleksa Sarai (4):
cgroups: use bitmask to filter for_each_subsys
cgroups: replace explicit ss_mask checking with for_each_subsys_which
cgroups: allow a cgroup subsystem to reject a fork
cgroups: implement the PIDs subsystem
include/linux/cgroup.h | 35 +++-
include/linux/cgroup_subsys.h | 4 +
init/Kconfig | 16 ++
kernel/Makefile | 1 +
kernel/cgroup.c | 208 ++++++++++++++++++------
kernel/cgroup_freezer.c | 2 +-
kernel/cgroup_pids.c | 367 ++++++++++++++++++++++++++++++++++++++++++
kernel/fork.c | 31 +++-
kernel/sched/core.c | 2 +-
9 files changed, 608 insertions(+), 58 deletions(-)
create mode 100644 kernel/cgroup_pids.c
--
2.3.4
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