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authorTejun Heo <tj@kernel.org>2016-12-27 14:49:03 -0500
committerTejun Heo <tj@kernel.org>2016-12-27 14:49:03 -0500
commite90cbebc3fa5caea4c8bfeb0d0157a0cee53efc7 (patch)
tree86c2bdab65cfde9766a6779979bd3836e71bdd74 /include/linux/cgroup-defs.h
parent0e67db2f9fe91937e798e3d7d22c50a8438187e1 (diff)
cgroup add cftype->open/release() callbacks
Pipe the newly added kernfs->open/release() callbacks through cftype. While at it, as cleanup operations now can be performed from ->release() instead of ->seq_stop(), make the latter optional. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>
Diffstat (limited to 'include/linux/cgroup-defs.h')
-rw-r--r--include/linux/cgroup-defs.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 861b4677fc5b..8a916dc96e84 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -388,6 +388,9 @@ struct cftype {
struct list_head node; /* anchored at ss->cfts */
struct kernfs_ops *kf_ops;
+ int (*open)(struct kernfs_open_file *of);
+ void (*release)(struct kernfs_open_file *of);
+
/*
* read_u64() is a shortcut for the common case of returning a
* single integer. Use it in place of read()