kernel_optimize_test/kernel/bpf
YiFei Zhu 984fe94f94 bpf: Mutex protect used_maps array and count
To support modifying the used_maps array, we use a mutex to protect
the use of the counter and the array. The mutex is initialized right
after the prog aux is allocated, and destroyed right before prog
aux is freed. This way we guarantee it's initialized for both cBPF
and eBPF.

Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Cc: YiFei Zhu <zhuyifei1999@gmail.com>
Link: https://lore.kernel.org/bpf/20200915234543.3220146-2-sdf@google.com
2020-09-15 18:28:27 -07:00
..
preload bpf: Disallow BPF_PRELOAD in allmodconfig builds 2020-08-25 15:23:46 -07:00
arraymap.c bpf: Introduce sleepable BPF programs 2020-08-28 21:20:33 +02:00
bpf_inode_storage.c bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
bpf_iter.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-09-01 13:22:59 -07:00
bpf_local_storage.c bpf: Split bpf_local_storage to bpf_sk_storage 2020-08-25 15:00:04 -07:00
bpf_lru_list.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
bpf_lru_list.h bpf: Fix a typo "inacitve" -> "inactive" 2020-04-06 21:54:10 +02:00
bpf_lsm.c bpf: Allow local storage to be used from LSM programs 2020-08-25 15:00:04 -07:00
bpf_struct_ops_types.h bpf: tcp: Support tcp_congestion_ops in bpf 2020-01-09 08:46:18 -08:00
bpf_struct_ops.c bpf: Move btf_resolve_size into __btf_resolve_size 2020-08-25 15:37:41 -07:00
btf.c bpf: Add BTF_SET_START/END macros 2020-08-25 15:37:41 -07:00
cgroup.c bpf: Add support for forced LINK_DETACH command 2020-08-01 20:38:28 -07:00
core.c bpf: Mutex protect used_maps array and count 2020-09-15 18:28:27 -07:00
cpumap.c bpf: {cpu,dev}map: Change various functions return type from int to void 2020-09-01 15:45:58 +02:00
devmap.c bpf: {cpu,dev}map: Change various functions return type from int to void 2020-09-01 15:45:58 +02:00
disasm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
disasm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
dispatcher.c bpf: Remove bpf_image tree 2020-03-13 12:49:52 -07:00
hashtab.c bpf: Introduce sleepable BPF programs 2020-08-28 21:20:33 +02:00
helpers.c bpf: Add bpf_copy_from_user() helper. 2020-08-28 21:20:33 +02:00
inode.c bpf: Add kernel module with user mode driver that populates bpffs. 2020-08-20 16:02:36 +02:00
local_storage.c bpf/local_storage: Fix build without CONFIG_CGROUP 2020-07-25 20:16:36 -07:00
lpm_trie.c bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
Makefile bpf: Implement bpf_local_storage for inodes 2020-08-25 15:00:04 -07:00
map_in_map.c bpf: Relax max_entries check for most of the inner map types 2020-08-28 15:41:30 +02:00
map_in_map.h bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
map_iter.c bpf: Implement link_query callbacks in map element iterators 2020-08-21 14:01:39 -07:00
net_namespace.c bpf: Add support for forced LINK_DETACH command 2020-08-01 20:38:28 -07:00
offload.c bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill 2020-02-17 16:53:49 +01:00
percpu_freelist.c bpf: Dont iterate over possible CPUs with interrupts disabled 2020-02-24 16:18:20 -08:00
percpu_freelist.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
prog_iter.c bpf: Refactor bpf_iter_reg to have separate seq_info member 2020-07-25 20:16:32 -07:00
queue_stack_maps.c bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
reuseport_array.c bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
ringbuf.c bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
stackmap.c bpf: Add map_meta_equal map ops 2020-08-28 15:41:30 +02:00
syscall.c bpf: Mutex protect used_maps array and count 2020-09-15 18:28:27 -07:00
sysfs_btf.c bpf: Support llvm-objcopy for vmlinux BTF 2020-03-19 12:32:38 +01:00
task_iter.c bpf: Avoid iterating duplicated files for task_file iterator 2020-09-02 16:40:33 +02:00
tnum.c bpf: Verifier, do explicit ALU32 bounds tracking 2020-03-30 14:59:53 -07:00
trampoline.c bpf: Remove bpf_lsm_file_mprotect from sleepable list. 2020-08-31 23:03:57 +02:00
verifier.c bpf: Permit map_ptr arithmetic with opcode add and offset 0 2020-09-08 18:02:18 -07:00