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KFunc bpf_list_push_front_impl

v6.4

Add a new entry to the beginning of the BPF linked list.

Note

This kfunc is deprecated as of 7.1, replaced by bpf_list_push_front. This kfunc will be removed at some point in the future.

Definition

Parameters

head: Head of the linked list. node: The node to add to the list.

The meta and off parameters are rewritten by the verifier, no need for BPF programs to set them

Returns

  • 0 if the node was successfully added
  • -EINVAL if the node wasn't added because it's already in a list

Signature

int bpf_list_push_front_impl(struct bpf_list_head *head, struct bpf_list_node *node, void *meta__ign, u64 off)

Usage

Docs could be improved

This part of the docs is incomplete, contributions are very welcome

Program types

The following program types can make use of this kfunc:

Example

Docs could be improved

This part of the docs is incomplete, contributions are very welcome