prog_list_length

Name: number of elements in the list.* it's slow but the list cannot be long

Proto:static u32 prog_list_length(struct list_head *head)

Type:u32

Parameter:

Type	Parameter	Name
struct list_head *	head

94

cnt = 0

97

If Not prog Then Continue

99

cnt++

101

Return cnt

**Caller**
Name	Describe
hierarchy_allows_attach	parent has non-overridable prog attached,* disallow attaching new programs to the descendent cgroup.* if parent has overridable or multi-prog, allow attaching
compute_effective_progs	mpute a chain of effective programs for a given cgroup:* start from the list of programs in this cgroup and add* all parent programs.* Note that parent's F_ALLOW_OVERRIDE-type program is yielding* to programs in this cgroup
__cgroup_bpf_attach	__cgroup_bpf_attach() - Attach the program to a cgroup, and* propagate the change to descendants@cgrp: The cgroup which descendants to traverse@prog: A program to attach@type: Type of attach operation@flags: Option flags
__cgroup_bpf_query	Must be called with cgroup_mutex held to avoid races.

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