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author | Tejun Heo <tj@kernel.org> | 2013-12-05 12:28:04 -0500 |
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committer | Tejun Heo <tj@kernel.org> | 2013-12-05 12:28:04 -0500 |
commit | 5d22444f427511fe7c4733b233680309af5b071c (patch) | |
tree | a4301a9f8088270f48f13871048930eee4ddaf5b /block/cfq-iosched.c | |
parent | 896f5199631560202885715da1b2f018632084e5 (diff) | |
download | op-kernel-dev-5d22444f427511fe7c4733b233680309af5b071c.zip op-kernel-dev-5d22444f427511fe7c4733b233680309af5b071c.tar.gz |
cgroup: generalize cgroup_pidlist_open_file
In preparation of conversion to kernfs, cgroup file handling is
updated so that it can be easily mapped to kernfs. This patch renames
cgroup_pidlist_open_file to cgroup_open_file and updates it so that it
only contains a field to identify the specific file, ->cfe, and an
opaque ->priv pointer. When cgroup is converted to kernfs, this will
be replaced by kernfs_open_file which contains about the same
information.
As whether the file is "cgroup.procs" or "tasks" should now be
determined from cgroup_open_file->cfe, the cftype->private for the two
files now carry the file type and cgroup_pidlist_start() reads the
type through cfe->type->private. This makes the distinction between
cgroup_tasks_open() and cgroup_procs_open() unnecessary.
cgroup_pidlist_open() is now directly used as the open method.
This patch doesn't make any behavior changes.
v2: Refreshed on top of the updated "cgroup: introduce struct
cgroup_pidlist_open_file".
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'block/cfq-iosched.c')
0 files changed, 0 insertions, 0 deletions