powerpc/perf/hv-24x7: Minor improvements (ebd4a5a3) · Commits · 戴 / test

arch/powerpc/perf/hv-24x7.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -1049,8 +1049,8 @@ static void init_24x7_request(struct hv_24x7_request_buffer *request_buffer,
		struct hv_24x7_data_result_buffer *result_buffer)
		{

		memset(request_buffer, 0, 4096);
		memset(result_buffer, 0, 4096);
		memset(request_buffer, 0, H24x7_DATA_BUFFER_SIZE);
		memset(result_buffer, 0, H24x7_DATA_BUFFER_SIZE);

		request_buffer->interface_version = HV_24X7_IF_VERSION_CURRENT;
		/* memset above set request_buffer->num_requests to 0 */
		@@ -1126,7 +1126,7 @@ static int add_event_to_24x7_request(struct perf_event *event,
		req->performance_domain = event_get_domain(event);
		req->data_size = cpu_to_be16(8);
		req->data_offset = cpu_to_be32(event_get_offset(event));
		req->starting_lpar_ix = cpu_to_be16(event_get_lpar(event)),
		req->starting_lpar_ix = cpu_to_be16(event_get_lpar(event));
		req->max_num_lpars = cpu_to_be16(1);
		req->starting_ix = cpu_to_be16(idx);
		req->max_ix = cpu_to_be16(1);
		@@ -1218,9 +1218,8 @@ static int h_24x7_event_init(struct perf_event *event)
		return -EINVAL;
		}

		/* Domains above 6 are invalid */
		domain = event_get_domain(event);
		if (domain > 6) {
		if (domain >= HV_PERF_DOMAIN_MAX) {
		pr_devel("invalid domain %d\n", domain);
		return -EINVAL;
		}

+10 −1

Original line number	Diff line number	Diff line
		@@ -71,6 +71,10 @@ struct hv_24x7_result_element {
		} __packed;

		struct hv_24x7_result {
		/*
		* The index of the 24x7 Request Structure in the 24x7 Request Buffer
		* used to request this result.
		*/
		__u8 result_ix;

		/*
		@@ -81,7 +85,12 @@ struct hv_24x7_result {
		__u8 results_complete;
		__be16 num_elements_returned;

		/* This is a copy of @data_size from the corresponding hv_24x7_request */
		/*
		* This is a copy of @data_size from the corresponding hv_24x7_request
		*
		* Warning: to obtain the size of each element in @elements you have
		* to add the size of the other members of the result_element struct.
		*/
		__be16 result_element_data_size;
		__u8 reserved[0x2];