FAN_EVENT_METADATA_LEN
send_len += FAN_EVENT_METADATA_LEN;
size_t event_len = FAN_EVENT_METADATA_LEN;
metadata.metadata_len = FAN_EVENT_METADATA_LEN;
if (copy_to_user(buf, &metadata, FAN_EVENT_METADATA_LEN))
buf += FAN_EVENT_METADATA_LEN;
count -= FAN_EVENT_METADATA_LEN;
#define FAN_EVENT_OK(meta, len) ((long)(len) >= (long)FAN_EVENT_METADATA_LEN && \
(long)(meta)->event_len >= (long)FAN_EVENT_METADATA_LEN && \
#define FAN_EVENT_OK(meta, len) ((long)(len) >= (long)FAN_EVENT_METADATA_LEN && \
(long)(meta)->event_len >= (long)FAN_EVENT_METADATA_LEN && \