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KFunc bpf_iter_css_next

v6.7

Iterate over cGroup subsystem states.

Definition

struct cgroup_subsys_state *bpf_iter_css_next(struct bpf_iter_css *it)

Note

The pointer returned by the kfunc may be NULL. Hence, it forces the user to do a NULL check on the pointer returned from the kfunc before making use of it (dereferencing or passing to another helper).

Usage

See bpf_iter_css_new for usage details.

Program types

The following program types can make use of this kfunc:

Example

See bpf_iter_css_new an example.