cgroup: move namespace code to kernel/cgroup/namespace.c

get/put_css_set() get exposed in cgroup-internal.h in the process.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <li

cgroup: move namespace code to kernel/cgroup/namespace.c

get/put_css_set() get exposed in cgroup-internal.h in the process.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>

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cgroup: rename functions for consistency

Now that v1 functions are separated out, rename some functions for
consistency.

cgroup_dfl_base_files -> cgroup_base_files
cgroup_legacy_base_files -> cg

cgroup: rename functions for consistency

Now that v1 functions are separated out, rename some functions for
consistency.

cgroup_dfl_base_files -> cgroup_base_files
cgroup_legacy_base_files -> cgroup1_base_files
cgroup_ssid_no_v1() -> cgroup1_ssid_disabled()
cgroup_pidlist_destroy_all -> cgroup1_pidlist_destroy_all()
cgroup_release_agent() -> cgroup1_release_agent()
check_for_release() -> cgroup1_check_for_release()

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>

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cgroup: move v1 mount functions to kernel/cgroup/cgroup-v1.c

Now that the v1 mount code is split into separate functions, move them
to kernel/cgroup/cgroup-v1.c along with the mount option handling

cgroup: move v1 mount functions to kernel/cgroup/cgroup-v1.c

Now that the v1 mount code is split into separate functions, move them
to kernel/cgroup/cgroup-v1.c along with the mount option handling
code. As this puts all v1-only kernfs_syscall_ops in cgroup-v1.c,
move cgroup1_kf_syscall_ops to cgroup-v1.c too.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>

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cgroup: separate out cgroup1_kf_syscall_ops

Currently, cgroup_kf_syscall_ops is shared by v1 and v2 and the
specific methods test the version and take different actions. Split
out v1 functions and

cgroup: separate out cgroup1_kf_syscall_ops

Currently, cgroup_kf_syscall_ops is shared by v1 and v2 and the
specific methods test the version and take different actions. Split
out v1 functions and put them in cgroup1_kf_syscall_ops and remove the
now unnecessary explicit branches in specific methods.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>

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cgroup: refactor mount path and clearly distinguish v1 and v2 paths

While sharing some mechanisms, the mount paths of v1 and v2 are
substantially different. Their implementations were mixed in
cgro

cgroup: refactor mount path and clearly distinguish v1 and v2 paths

While sharing some mechanisms, the mount paths of v1 and v2 are
substantially different. Their implementations were mixed in
cgroup_mount(). This patch splits them out so that they're easier to
follow and organize.

This patch causes one functional change - the WARN_ON(new_sb) gets
lost. This is because the actual mounting gets moved to
cgroup_do_mount() and thus @new_sb is no longer accessible by default
to cgroup1_mount(). While we can add it as an explicit out parameter
to cgroup_do_mount(), this part of code hasn't changed and the warning
hasn't triggered for quite a while. Dropping it should be fine.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>

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cgroup: move cgroup v1 specific code to kernel/cgroup/cgroup-v1.c

cgroup.c is getting too unwieldy. Let's move out cgroup v1 specific
code along with the debug controller into kernel/cgroup/cgroup-

cgroup: move cgroup v1 specific code to kernel/cgroup/cgroup-v1.c

cgroup.c is getting too unwieldy. Let's move out cgroup v1 specific
code along with the debug controller into kernel/cgroup/cgroup-v1.c.

v2: cgroup_mutex and css_set_lock made available in cgroup-internal.h
regardless of CONFIG_PROVE_RCU.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>

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cgroup: move cgroup files under kernel/cgroup/

They're growing to be too many and planned to get split further. Move
them under their own directory.

kernel/cgroup.c -> kernel/cgroup/cgroup.c
ke

cgroup: move cgroup files under kernel/cgroup/

They're growing to be too many and planned to get split further. Move
them under their own directory.

kernel/cgroup.c -> kernel/cgroup/cgroup.c
kernel/cgroup_freezer.c -> kernel/cgroup/freezer.c
kernel/cgroup_pids.c -> kernel/cgroup/pids.c
kernel/cpuset.c -> kernel/cgroup/cpuset.c

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>

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