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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2020-08-25 11:00:02 +0200
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2020-08-25 11:00:02 +0200
commit2d9ad4cfaf4d32a64a4ed556e5bcab9121215026 (patch)
tree3572e6cd05effa4e2943cee817defb2b9a72afd1 /kernel/bpf/queue_stack_maps.c
parentdrm/modeset-lock: Take the modeset BKL for legacy drivers (diff)
parentLinux 5.9-rc2 (diff)
Merge tag 'v5.9-rc2' into drm-misc-fixes
Backmerge requested by Tomi for a fix to omap inconsistent locking state issue, and because we need at least v5.9-rc2 now. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'kernel/bpf/queue_stack_maps.c')
-rw-r--r--kernel/bpf/queue_stack_maps.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/kernel/bpf/queue_stack_maps.c b/kernel/bpf/queue_stack_maps.c
index 05c8e043b9d2..44184f82916a 100644
--- a/kernel/bpf/queue_stack_maps.c
+++ b/kernel/bpf/queue_stack_maps.c
@@ -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,
};