linux/Documentation/bpf
Tejun Heo 332ea1f697 bpf: Add bpf_cgroup_from_id() kfunc
cgroup ID is an userspace-visible 64bit value uniquely identifying a given
cgroup. As the IDs are used widely, it's useful to be able to look up the
matching cgroups. Add bpf_cgroup_from_id().

v2: Separate out selftest into its own patch as suggested by Alexei.

Signed-off-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/Y/bBaG96t0/gQl9/@slm.duckdns.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-02-23 08:33:05 -08:00
..
libbpf Documentation: bpf: correct spelling 2023-01-28 12:22:20 -08:00
bpf_design_QA.rst bpf/docs: Update design QA to be consistent with kfunc lifecycle docs 2023-02-08 09:24:16 -08:00
bpf_devel_QA.rst bpf/docs: Include blank lines between bullet points in bpf_devel_QA.rst 2022-11-17 16:26:42 +01:00
bpf_iterators.rst bpf, docs: BPF Iterator Document 2022-12-04 16:41:22 -08:00
bpf_licensing.rst bpf: Document BPF licensing. 2021-09-22 23:13:13 +02:00
bpf_prog_run.rst Documentation/bpf: Add documentation for BPF_PROG_RUN 2022-03-09 14:19:22 -08:00
btf.rst docs/bpf: Update btf selftests program and add link 2022-11-25 00:00:15 +01:00
clang-notes.rst bpf, docs: Add Clang note about BPF_ALU 2022-09-30 13:41:25 -07:00
classic_vs_extended.rst bpf, docs: Split the comparism to classic BPF from instruction-set.rst 2021-12-30 16:31:44 -08:00
cpumasks.rst bpf/docs: Document cpumask kfuncs in a new file 2023-01-25 07:57:50 -08:00
drgn.rst bpf: Document bpf_inspect drgn tool 2020-03-26 00:08:36 +01:00
faq.rst bpf, docs: Fix ordering of bpf documentation 2021-11-17 23:24:01 +01:00
graph_ds_impl.rst Documentation: bpf: Add missing line break separator in node_data struct code block 2023-02-15 08:43:51 -08:00
helpers.rst bpf, docs: Fix ordering of bpf documentation 2021-11-17 23:24:01 +01:00
index.rst bpf/docs: Document cpumask kfuncs in a new file 2023-01-25 07:57:50 -08:00
instruction-set.rst bpf, docs: Add explanation of endianness 2023-02-22 14:04:55 -08:00
kfuncs.rst bpf: Add bpf_cgroup_from_id() kfunc 2023-02-23 08:33:05 -08:00
linux-notes.rst bpf, docs: Delete misformatted table. 2022-10-01 08:51:26 -07:00
llvm_reloc.rst bpf, docs: Add llvm_reloc.rst to explain llvm bpf relocations 2021-05-28 22:12:04 +02:00
map_array.rst docs/bpf: Fix sphinx warnings in BPF map docs 2022-11-24 01:05:04 +01:00
map_bloom_filter.rst docs/bpf: Document BPF_MAP_TYPE_BLOOM_FILTER 2022-11-23 22:47:32 +01:00
map_cgroup_storage.rst Remove duplicate words inside documentation 2022-09-27 13:21:43 -06:00
map_cgrp_storage.rst docs/bpf: Add documentation for new cgroup local storage 2022-10-25 23:19:20 -07:00
map_cpumap.rst docs/bpf: Fix sphinx warnings for cpumap 2022-11-23 22:38:53 +01:00
map_devmap.rst docs/bpf: Fix sphinx warnings for devmap 2022-11-23 22:40:27 +01:00
map_hash.rst docs/bpf: Fix sphinx warnings in BPF map docs 2022-11-24 01:05:04 +01:00
map_lpm_trie.rst docs/bpf: Fix sphinx warnings in BPF map docs 2022-11-24 01:05:04 +01:00
map_of_maps.rst docs/bpf: Fix sphinx warnings in BPF map docs 2022-11-24 01:05:04 +01:00
map_queue_stack.rst docs/bpf: Fix sphinx warnings in BPF map docs 2022-11-24 01:05:04 +01:00
map_sk_storage.rst docs/bpf: Reword docs for BPF_MAP_TYPE_SK_STORAGE 2022-12-14 18:35:41 +01:00
map_sockmap.rst docs: BPF_MAP_TYPE_SOCK[MAP|HASH] 2022-12-20 15:54:05 -08:00
map_xskmap.rst Documentation: bpf: correct spelling 2023-01-28 12:22:20 -08:00
maps.rst bpf, docs: Reformat BPF maps page to be more readable 2022-10-20 18:53:34 -07:00
other.rst bpf, documentation: Add graph documentation for non-owning refs 2023-02-13 19:40:53 -08:00
prog_cgroup_sockopt.rst bpf: Document optval > PAGE_SIZE behavior for sockopt hooks 2020-06-17 10:54:05 -07:00
prog_cgroup_sysctl.rst bpf: Document BPF_PROG_TYPE_CGROUP_SYSCTL 2019-04-18 16:05:36 -07:00
prog_flow_dissector.rst bpf/flow_dissector: add mode to enforce global BPF flow dissector 2019-10-07 20:16:33 -07:00
prog_lsm.rst bpf, docs: Rename bpf_lsm.rst to prog_lsm.rst 2021-11-17 23:23:58 +01:00
prog_sk_lookup.rst bpf: sk_lookup: Add user documentation 2020-08-24 14:46:50 -07:00
programs.rst docs/bpf: Add table of BPF program types to libbpf docs 2022-11-23 13:31:20 -08:00
redirect.rst bpf, docs: DEVMAPs and XDP_REDIRECT 2022-11-18 23:16:31 +01:00
ringbuf.rst Documentation: bpf: correct spelling 2023-01-28 12:22:20 -08:00
s390.rst bpf: Add s390 testing documentation 2019-10-30 16:25:31 +01:00
syscall_api.rst bpf, docs: Fix ordering of bpf documentation 2021-11-17 23:24:01 +01:00
test_debug.rst bpf, docs: Fix ordering of bpf documentation 2021-11-17 23:24:01 +01:00
verifier.rst docs/bpf: Add description of register liveness tracking algorithm 2023-02-02 20:21:59 -08:00