39 	struct zfcp_diag_header *hdr;  in zfcp_diag_adapter_setup()  local
48 	hdr = &diag->port_data.header;  in zfcp_diag_adapter_setup()
50 	spin_lock_init(&hdr->access_lock);  in zfcp_diag_adapter_setup()
51 	hdr->buffer = &diag->port_data.data;  in zfcp_diag_adapter_setup()
52 	hdr->buffer_size = sizeof(diag->port_data.data);  in zfcp_diag_adapter_setup()
54 	hdr->timestamp = jiffies - msecs_to_jiffies(diag->max_age);  in zfcp_diag_adapter_setup()
57 	hdr = &diag->config_data.header;  in zfcp_diag_adapter_setup()
59 	spin_lock_init(&hdr->access_lock);  in zfcp_diag_adapter_setup()
60 	hdr->buffer = &diag->config_data.data;  in zfcp_diag_adapter_setup()
61 	hdr->buffer_size = sizeof(diag->config_data.data);  in zfcp_diag_adapter_setup()
63 	hdr->timestamp = jiffies - msecs_to_jiffies(diag->max_age);  in zfcp_diag_adapter_setup()
128 void zfcp_diag_update_xdata(struct zfcp_diag_header *const hdr,  in zfcp_diag_update_xdata()  argument
134 	spin_lock_irqsave(&hdr->access_lock, flags);  in zfcp_diag_update_xdata()
137 	if (!time_after_eq(capture_timestamp, hdr->timestamp))  in zfcp_diag_update_xdata()
140 	hdr->timestamp = capture_timestamp;  in zfcp_diag_update_xdata()
141 	hdr->incomplete = incomplete;  in zfcp_diag_update_xdata()
142 	memcpy(hdr->buffer, data, hdr->buffer_size);  in zfcp_diag_update_xdata()
144 	spin_unlock_irqrestore(&hdr->access_lock, flags);  in zfcp_diag_update_xdata()
208 				     struct zfcp_diag_header *const hdr,  in __zfcp_diag_update_buffer()  argument
211 	__must_hold(hdr->access_lock)  in __zfcp_diag_update_buffer()
215 	if (hdr->updating == 1) {  in __zfcp_diag_update_buffer()
217 						       hdr->updating == 0,  in __zfcp_diag_update_buffer()
218 						       hdr->access_lock);  in __zfcp_diag_update_buffer()
221 		hdr->updating = 1;  in __zfcp_diag_update_buffer()
222 		spin_unlock_irqrestore(&hdr->access_lock, *flags);  in __zfcp_diag_update_buffer()
227 		spin_lock_irqsave(&hdr->access_lock, *flags);  in __zfcp_diag_update_buffer()
228 		hdr->updating = 0;  in __zfcp_diag_update_buffer()
242 				    const struct zfcp_diag_header *const hdr)  in __zfcp_diag_test_buffer_age_isfresh()  argument
243 	__must_hold(hdr->access_lock)  in __zfcp_diag_test_buffer_age_isfresh()
251 	if (!time_after_eq(now, hdr->timestamp))  in __zfcp_diag_test_buffer_age_isfresh()
254 	if (jiffies_to_msecs(now - hdr->timestamp) >= diag->max_age)  in __zfcp_diag_test_buffer_age_isfresh()
285 				    struct zfcp_diag_header *const hdr,  in zfcp_diag_update_buffer_limited()  argument
291 	spin_lock_irqsave(&hdr->access_lock, flags);  in zfcp_diag_update_buffer_limited()
294 	     !__zfcp_diag_test_buffer_age_isfresh(adapter->diagnostics, hdr);  in zfcp_diag_update_buffer_limited()
296 		rc = __zfcp_diag_update_buffer(adapter, hdr, buffer_update,  in zfcp_diag_update_buffer_limited()
302 	spin_unlock_irqrestore(&hdr->access_lock, flags);  in zfcp_diag_update_buffer_limited()