mirror-linux/kernel/bpf
Leon Hwang 47c79f05aa bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_cgroup_storage maps
Introduce BPF_F_ALL_CPUS flag support for percpu_cgroup_storage maps to
allow updating values for all CPUs with a single value for update_elem
API.

Introduce BPF_F_CPU flag support for percpu_cgroup_storage maps to
allow:

* update value for specified CPU for update_elem API.
* lookup value for specified CPU for lookup_elem API.

The BPF_F_CPU flag is passed via map_flags along with embedded cpu info.

Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260107022022.12843-6-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-06 20:48:32 -08:00
..
preload umd: Remove usermode driver framework 2025-07-26 21:03:04 +02:00
Kconfig bpf: Update the bpf_prog_calc_tag to use SHA256 2025-09-18 19:10:20 -07:00
Makefile bpf: annotate file argument as __nullable in bpf_lsm_mmap_file 2025-12-21 10:56:33 -08:00
arena.c bpf: arena: Reintroduce memcg accounting 2026-01-02 14:31:59 -08:00
arraymap.c bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_array maps 2026-01-06 20:48:32 -08:00
bloom_filter.c
bpf_cgrp_storage.c bpf: use rcu_read_lock_dont_migrate() for bpf_cgrp_storage_free() 2025-08-25 18:52:16 -07:00
bpf_inode_storage.c bpf: use rcu_read_lock_dont_migrate() for bpf_inode_storage_free() 2025-08-25 18:52:16 -07:00
bpf_insn_array.c bpf: force BPF_F_RDONLY_PROG on insn array creation 2025-11-28 15:15:43 -08:00
bpf_iter.c bpf: Fix bpf_seq_read docs for increased buffer size 2025-12-13 18:57:53 -08:00
bpf_local_storage.c bpf: Replace bpf memory allocator with kmalloc_nolock() in local storage 2025-11-18 16:20:25 -08:00
bpf_lru_list.c bpf: Replace get_next_cpu() with cpumask_next_wrap() 2025-08-18 15:11:02 +02:00
bpf_lru_list.h bpf: Adjust free target to avoid global starvation of LRU map 2025-06-18 18:50:14 -07:00
bpf_lsm.c bpf: annotate file argument as __nullable in bpf_lsm_mmap_file 2025-12-21 10:56:33 -08:00
bpf_lsm_proto.c bpf: annotate file argument as __nullable in bpf_lsm_mmap_file 2025-12-21 10:56:33 -08:00
bpf_struct_ops.c bpf: Support associating BPF program with struct_ops 2025-12-05 16:17:57 -08:00
bpf_task_storage.c bpf: use rcu_read_lock_dont_migrate() for bpf_task_storage_free() 2025-08-25 18:52:16 -07:00
btf.c bpf: allow calling kfuncs from raw_tp programs 2025-12-22 22:23:38 -08:00
btf_iter.c
btf_relocate.c
cgroup.c bpf: Convert bpf_sock_addr_kern "uaddr" to sockaddr_unsized 2025-11-04 19:10:33 -08:00
cgroup_iter.c
core.c bpf: arm64: Optimize recursion detection by not using atomics 2025-12-21 10:54:37 -08:00
cpumap.c bpf: cpumap: propagate underlying error in cpu_map_update_elem() 2025-12-09 23:53:27 -08:00
cpumask.c bpf: Remove redundant KF_TRUSTED_ARGS flag from all kfuncs 2026-01-02 12:04:28 -08:00
crypto.c bpf: crypto: replace -EEXIST with -EBUSY 2025-12-22 22:25:09 -08:00
devmap.c bpf: Remove redundant __GFP_NOWARN 2025-08-12 14:56:04 -07:00
disasm.c bpf: disasm: add support for BPF_JMP|BPF_JA|BPF_X 2025-11-05 17:53:23 -08:00
disasm.h
dispatcher.c
dmabuf_iter.c bpf: Fix truncated dmabuf iterator reads 2025-12-09 23:48:34 -08:00
hashtab.c bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_hash and lru_percpu_hash maps 2026-01-06 20:48:32 -08:00
helpers.c bpf: Replace __opt annotation with __nullable for kfuncs 2026-01-02 15:51:34 -08:00
inode.c convert bpf 2025-11-16 01:35:03 -05:00
kmem_cache_iter.c
link_iter.c bpf: Clean up individual BTF_ID code 2025-07-16 18:34:42 -07:00
liveness.c bpf: correct stack liveness for tail calls 2025-11-21 17:45:30 -08:00
local_storage.c bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_cgroup_storage maps 2026-01-06 20:48:32 -08:00
log.c bpf, x86: add support for indirect jumps 2025-11-05 17:53:23 -08:00
lpm_trie.c
map_in_map.c
map_in_map.h
map_iter.c bpf: Remove redundant KF_TRUSTED_ARGS flag from all kfuncs 2026-01-02 12:04:28 -08:00
memalloc.c bpf: replace use of system_unbound_wq with system_dfl_wq 2025-09-08 10:04:37 -07:00
mmap_unlock_work.h
mprog.c
net_namespace.c bpf: Remove attach_type in bpf_netns_link 2025-07-11 11:01:04 -07:00
offload.c
percpu_freelist.c
percpu_freelist.h
prog_iter.c bpf: Clean up individual BTF_ID code 2025-07-16 18:34:42 -07:00
queue_stack_maps.c
range_tree.c bpf: arena: Reintroduce memcg accounting 2026-01-02 14:31:59 -08:00
range_tree.h
relo_core.c
reuseport_array.c
ringbuf.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.18-rc4 2025-11-03 14:59:55 -08:00
rqspinlock.c rqspinlock: Precede non-head waiter queueing with AA check 2025-11-29 09:35:36 -08:00
rqspinlock.h
stackmap.c bpf-next-6.19 2025-12-03 16:54:54 -08:00
stream.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.18-rc5+ 2025-11-14 17:43:41 -08:00
syscall.c bpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu_cgroup_storage maps 2026-01-06 20:48:32 -08:00
sysfs_btf.c Driver core changes for 6.17-rc1 2025-07-29 12:15:39 -07:00
task_iter.c
tcx.c bpf: Remove location field in tcx_link 2025-07-11 11:00:57 -07:00
tnum.c bpf: Improve the general precision of tnum_mul 2025-08-27 15:00:26 -07:00
token.c bpf: convert bpf_token_create() to FD_PREPARE() 2025-11-28 12:42:33 +01:00
trampoline.c bpf: move recursion detection logic to helpers 2025-12-21 10:54:37 -08:00
verifier.c bpf: Allow calls to arena functions while holding spinlocks 2026-01-06 17:44:00 -08:00