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Mykyta Yatsenko 8f6802d26d Documentation/bpf: Refresh map_lru_hash_update.dot for rqspinlock 
Reflect the rqspinlock conversion and orphan-recovery paths added in
the previous commit:

 - All LRU locks are rqspinlock_t; any acquire can fail (AA or
   timeout). A shared "rqspinlock acquire failed" terminal collapses
   to the existing -ENOMEM exit. Dashed arrows from each acquire site
   mark the failure paths.

 - The per-CPU local freelist is now lockless (free_llist).

 - Post-steal: re-acquiring loc_l->lock to insert the stolen node
   into the local pending list can fail; on failure the node is
   published to free_llist instead of being orphaned, and the call
   returns -ENOMEM.

 - Steal-loop victim lock failure is silent: skip the victim and try
   the next CPU.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Link: https://lore.kernel.org/r/20260607-lru_map_spin-v3-2-bcd9332e911b@meta.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-06-07 18:46:13 -07:00
..
libbpf
docs/bpf: add missing fsession attach type to docs
2026-04-12 12:42:38 -07:00
standardization
bpf, doc: Improve wording of docs
2025-06-11 12:30:41 -07:00
bpf_design_QA.rst
docs/bpf: Add documentation for new instructions
2023-07-27 18:54:17 -07:00
bpf_devel_QA.rst
docs/bpf: Default cpu version changed from v1 to v3 in llvm 20
2025-06-12 16:52:44 -07:00
bpf_iterators.rst
docs: bpf: Fix bullet point formatting warning
2025-05-13 08:53:02 -07:00
bpf_licensing.rst
bpf: Document BPF licensing.
2021-09-22 23:13:13 +02:00
bpf_prog_run.rst
bpf: Update BPF_PROG_RUN documentation
2025-12-31 13:45:26 -08:00
btf.rst
Documentation/bpf: Update btf doc with updated vlen, kind sizes
2026-04-20 17:52:48 -07:00
clang-notes.rst
bpf, docs: Explain helper functions
2023-03-10 13:02:00 -08:00
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: Add bpf_cpumask_weight() kfunc
2023-12-09 21:37:33 -08:00
drgn.rst
docs/bpf: add missing fsession attach type to docs
2026-04-12 12:42:38 -07:00
faq.rst
bpf, docs: Fix ordering of bpf documentation
2021-11-17 23:24:01 +01:00
fs_kfuncs.rst
Documentation/bpf: Add documentation for filesystem kfuncs
2023-12-01 16:21:03 -08:00
graph_ds_impl.rst
Documentation: Fix typos
2023-08-18 11:29:03 -06:00
helpers.rst
bpf, docs: Fix ordering of bpf documentation
2021-11-17 23:24:01 +01:00
index.rst
Documentation: use a source-read extension for the index link boilerplate
2026-01-23 11:59:34 -07:00
kfuncs.rst
Merge branch 'arena_direct_access'
2026-05-25 08:35:48 -07:00
linux-notes.rst
bpf, docs: Move linux-notes.rst to root bpf docs tree
2023-08-30 16:35:44 +02:00
llvm_reloc.rst
docs/bpf: Fix "file doesn't exist" warnings in {llvm_reloc,btf}.rst
2023-09-01 15:56:48 +02:00
map_array.rst
docs: bpf: map_array: Specify BPF_MAP_TYPE_PERCPU_ARRAY value size limit
2025-11-25 14:32:00 -08:00
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
bpf: Adjust free target to avoid global starvation of LRU map
2025-06-18 18:50:14 -07:00
map_lpm_trie.rst
bpf: Replace bpf_lpm_trie_key 0-length array with flexible array
2024-02-29 22:52:43 +01:00
map_lru_hash_update.dot
Documentation/bpf: Refresh map_lru_hash_update.dot for rqspinlock
2026-06-07 18:46:13 -07:00
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
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
map_xskmap.rst
Documentation: bpf: correct spelling
2023-01-28 12:22:20 -08:00
maps.rst
bpf, docs: Fix final bpf docs build failure
2023-03-02 22:36:10 -08:00
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 EFAULT changes for sockopt
2023-05-13 16:55:46 -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
docs/bpf: update out-of-date doc in BPF flow dissector
2023-09-13 14:22:57 -07:00
prog_lsm.rst
lsm: move hook comments docs to security/security.c
2023-04-28 11:58:34 -04:00
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
bpf: disable and remove registers chain based liveness
2025-09-19 09:27:23 -07:00