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| author | Jiri Kosina <jkosina@suse.cz> | 2020-09-01 14:19:48 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2020-09-01 14:19:48 +0200 |
| commit | ead5d1f4d877e92c051e1a1ade623d0d30e71619 (patch) | |
| tree | cb9db5698a546e7b96f7d5bef5ce544629dd37a2 /kernel/bpf/queue_stack_maps.c | |
| parent | f53fa968a7344970b8f8a5707c39cdcf17a6f367 (diff) | |
| parent | b51594df17d0ce80b9f9f35394a1f42d7ac94472 (diff) | |
| download | linux-ead5d1f4d877e92c051e1a1ade623d0d30e71619.tar.gz linux-ead5d1f4d877e92c051e1a1ade623d0d30e71619.tar.bz2 linux-ead5d1f4d877e92c051e1a1ade623d0d30e71619.zip | |
Merge branch 'master' into for-next
Sync with Linus' branch in order to be able to apply fixups
of more recent patches.
Diffstat (limited to 'kernel/bpf/queue_stack_maps.c')
| -rw-r--r-- | kernel/bpf/queue_stack_maps.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/kernel/bpf/queue_stack_maps.c b/kernel/bpf/queue_stack_maps.c index f697647ceb54..44184f82916a 100644 --- a/kernel/bpf/queue_stack_maps.c +++ b/kernel/bpf/queue_stack_maps.c @@ -19,7 +19,7 @@ struct bpf_queue_stack { u32 head, tail; u32 size; /* max_entries + 1 */ - char elements[0] __aligned(8); + char elements[] __aligned(8); }; static struct bpf_queue_stack *bpf_queue_stack(struct bpf_map *map) @@ -45,7 +45,7 @@ static bool queue_stack_map_is_full(struct bpf_queue_stack *qs) /* Called from syscall */ static int queue_stack_map_alloc_check(union bpf_attr *attr) { - if (!capable(CAP_SYS_ADMIN)) + if (!bpf_capable()) return -EPERM; /* check sanity of attributes */ @@ -101,13 +101,6 @@ static void queue_stack_map_free(struct bpf_map *map) { struct bpf_queue_stack *qs = bpf_queue_stack(map); - /* at this point bpf_prog->aux->refcnt == 0 and this map->refcnt == 0, - * so the programs (can be more than one that used this map) were - * disconnected from events. Wait for outstanding critical sections in - * these programs to complete - */ - synchronize_rcu(); - bpf_map_area_free(qs); } @@ -262,6 +255,7 @@ static int queue_stack_map_get_next_key(struct bpf_map *map, void *key, return -EINVAL; } +static int queue_map_btf_id; const struct bpf_map_ops queue_map_ops = { .map_alloc_check = queue_stack_map_alloc_check, .map_alloc = queue_stack_map_alloc, @@ -273,8 +267,11 @@ const struct bpf_map_ops queue_map_ops = { .map_pop_elem = queue_map_pop_elem, .map_peek_elem = queue_map_peek_elem, .map_get_next_key = queue_stack_map_get_next_key, + .map_btf_name = "bpf_queue_stack", + .map_btf_id = &queue_map_btf_id, }; +static int stack_map_btf_id; const struct bpf_map_ops stack_map_ops = { .map_alloc_check = queue_stack_map_alloc_check, .map_alloc = queue_stack_map_alloc, @@ -286,4 +283,6 @@ const struct bpf_map_ops stack_map_ops = { .map_pop_elem = stack_map_pop_elem, .map_peek_elem = stack_map_peek_elem, .map_get_next_key = queue_stack_map_get_next_key, + .map_btf_name = "bpf_queue_stack", + .map_btf_id = &stack_map_btf_id, }; |