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-rw-r--r--kernel/bpf/arraymap.c29
1 files changed, 8 insertions, 21 deletions
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 5e00b23..ecb4354 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -86,6 +86,7 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr)
array->map.key_size = attr->key_size;
array->map.value_size = attr->value_size;
array->map.max_entries = attr->max_entries;
+ array->map.map_flags = attr->map_flags;
array->elem_size = elem_size;
if (!percpu)
@@ -451,38 +452,24 @@ static void bpf_event_entry_free_rcu(struct bpf_event_entry *ee)
static void *perf_event_fd_array_get_ptr(struct bpf_map *map,
struct file *map_file, int fd)
{
- const struct perf_event_attr *attr;
struct bpf_event_entry *ee;
struct perf_event *event;
struct file *perf_file;
+ u64 value;
perf_file = perf_event_get(fd);
if (IS_ERR(perf_file))
return perf_file;
+ ee = ERR_PTR(-EOPNOTSUPP);
event = perf_file->private_data;
- ee = ERR_PTR(-EINVAL);
-
- attr = perf_event_attrs(event);
- if (IS_ERR(attr) || attr->inherit)
+ if (perf_event_read_local(event, &value) == -EOPNOTSUPP)
goto err_out;
- switch (attr->type) {
- case PERF_TYPE_SOFTWARE:
- if (attr->config != PERF_COUNT_SW_BPF_OUTPUT)
- goto err_out;
- /* fall-through */
- case PERF_TYPE_RAW:
- case PERF_TYPE_HARDWARE:
- ee = bpf_event_entry_gen(perf_file, map_file);
- if (ee)
- return ee;
- ee = ERR_PTR(-ENOMEM);
- /* fall-through */
- default:
- break;
- }
-
+ ee = bpf_event_entry_gen(perf_file, map_file);
+ if (ee)
+ return ee;
+ ee = ERR_PTR(-ENOMEM);
err_out:
fput(perf_file);
return ee;
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