include/linux/bpf-cgroup-defs.h

Source file repositories/reference/linux-study-clean/include/linux/bpf-cgroup-defs.h

File Facts

System
Linux kernel
Corpus path
include/linux/bpf-cgroup-defs.h
Extension
.h
Size
2163 bytes
Lines
86
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct cgroup_bpf {
	/* array of effective progs in this cgroup */
	struct bpf_prog_array __rcu *effective[MAX_CGROUP_BPF_ATTACH_TYPE];

	/* attached progs to this cgroup and attach flags
	 * when flags == 0 or BPF_F_ALLOW_OVERRIDE the progs list will
	 * have either zero or one element
	 * when BPF_F_ALLOW_MULTI the list can have up to BPF_CGROUP_MAX_PROGS
	 */
	struct hlist_head progs[MAX_CGROUP_BPF_ATTACH_TYPE];
	u8 flags[MAX_CGROUP_BPF_ATTACH_TYPE];
	u64 revisions[MAX_CGROUP_BPF_ATTACH_TYPE];

	/* list of cgroup shared storages */
	struct list_head storages;

	/* temp storage for effective prog array used by prog_attach/detach */
	struct bpf_prog_array *inactive;

	/* reference counter used to detach bpf programs after cgroup removal */
	struct percpu_ref refcnt;

	/* cgroup_bpf is released using a work queue */
	struct work_struct release_work;
};

#else /* CONFIG_CGROUP_BPF */
struct cgroup_bpf {};
#endif /* CONFIG_CGROUP_BPF */

#endif

Annotation

Implementation Notes