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| author | Benjamin Tissoires <bentiss@kernel.org> | 2024-04-20 11:09:09 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-04-23 18:31:25 -0700 |
| commit | 246331e3f1eac905170a923f0ec76725c2558232 (patch) | |
| tree | 1755b8cb148983f6d91ea433cbad3d2432167300 /kernel/bpf/syscall.c | |
| parent | d940c9b94d7e6d9cff288623e3e8bf5fdea98b79 (diff) | |
| download | linux-next-246331e3f1eac905170a923f0ec76725c2558232.tar.gz linux-next-246331e3f1eac905170a923f0ec76725c2558232.zip | |
bpf: allow struct bpf_wq to be embedded in arraymaps and hashmaps
Currently bpf_wq_cancel_and_free() is just a placeholder as there is
no memory allocation for bpf_wq just yet.
Again, duplication of the bpf_timer approach
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-9-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 0848e4141b00..63e368337483 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -661,6 +661,13 @@ void bpf_obj_free_timer(const struct btf_record *rec, void *obj) bpf_timer_cancel_and_free(obj + rec->timer_off); } +void bpf_obj_free_workqueue(const struct btf_record *rec, void *obj) +{ + if (WARN_ON_ONCE(!btf_record_has_field(rec, BPF_WORKQUEUE))) + return; + bpf_wq_cancel_and_free(obj + rec->wq_off); +} + void bpf_obj_free_fields(const struct btf_record *rec, void *obj) { const struct btf_field *fields; @@ -682,6 +689,7 @@ void bpf_obj_free_fields(const struct btf_record *rec, void *obj) bpf_timer_cancel_and_free(field_ptr); break; case BPF_WORKQUEUE: + bpf_wq_cancel_and_free(field_ptr); break; case BPF_KPTR_UNREF: WRITE_ONCE(*(u64 *)field_ptr, 0); @@ -1119,6 +1127,7 @@ static int map_check_btf(struct bpf_map *map, struct bpf_token *token, } break; case BPF_TIMER: + case BPF_WORKQUEUE: if (map->map_type != BPF_MAP_TYPE_HASH && map->map_type != BPF_MAP_TYPE_LRU_HASH && map->map_type != BPF_MAP_TYPE_ARRAY) { |