37 	struct zfcp_diag_header *hdr;  in zfcp_diag_adapter_setup()  local
46 	hdr = &diag->port_data.header;  in zfcp_diag_adapter_setup()
48 	spin_lock_init(&hdr->access_lock);  in zfcp_diag_adapter_setup()
49 	hdr->buffer = &diag->port_data.data;  in zfcp_diag_adapter_setup()
50 	hdr->buffer_size = sizeof(diag->port_data.data);  in zfcp_diag_adapter_setup()
52 	hdr->timestamp = jiffies - msecs_to_jiffies(diag->max_age);  in zfcp_diag_adapter_setup()
55 	hdr = &diag->config_data.header;  in zfcp_diag_adapter_setup()
57 	spin_lock_init(&hdr->access_lock);  in zfcp_diag_adapter_setup()
58 	hdr->buffer = &diag->config_data.data;  in zfcp_diag_adapter_setup()
59 	hdr->buffer_size = sizeof(diag->config_data.data);  in zfcp_diag_adapter_setup()
61 	hdr->timestamp = jiffies - msecs_to_jiffies(diag->max_age);  in zfcp_diag_adapter_setup()
82  * @hdr: the meta data to update.
86 void zfcp_diag_update_xdata(struct zfcp_diag_header *const hdr,  in zfcp_diag_update_xdata()  argument
92 	spin_lock_irqsave(&hdr->access_lock, flags);  in zfcp_diag_update_xdata()
95 	if (!time_after_eq(capture_timestamp, hdr->timestamp))  in zfcp_diag_update_xdata()
98 	hdr->timestamp = capture_timestamp;  in zfcp_diag_update_xdata()
99 	hdr->incomplete = incomplete;  in zfcp_diag_update_xdata()
100 	memcpy(hdr->buffer, data, hdr->buffer_size);  in zfcp_diag_update_xdata()
102 	spin_unlock_irqrestore(&hdr->access_lock, flags);  in zfcp_diag_update_xdata()
166 				     struct zfcp_diag_header *const hdr,  in __zfcp_diag_update_buffer()  argument
169 	__must_hold(hdr->access_lock)  in __zfcp_diag_update_buffer()
173 	if (hdr->updating == 1) {  in __zfcp_diag_update_buffer()
175 						       hdr->updating == 0,  in __zfcp_diag_update_buffer()
176 						       hdr->access_lock);  in __zfcp_diag_update_buffer()
179 		hdr->updating = 1;  in __zfcp_diag_update_buffer()
180 		spin_unlock_irqrestore(&hdr->access_lock, *flags);  in __zfcp_diag_update_buffer()
185 		spin_lock_irqsave(&hdr->access_lock, *flags);  in __zfcp_diag_update_buffer()
186 		hdr->updating = 0;  in __zfcp_diag_update_buffer()
200 				    const struct zfcp_diag_header *const hdr)  in __zfcp_diag_test_buffer_age_isfresh()  argument
201 	__must_hold(hdr->access_lock)  in __zfcp_diag_test_buffer_age_isfresh()
209 	if (!time_after_eq(now, hdr->timestamp))  in __zfcp_diag_test_buffer_age_isfresh()
212 	if (jiffies_to_msecs(now - hdr->timestamp) >= diag->max_age)  in __zfcp_diag_test_buffer_age_isfresh()
222  * @hdr: buffer-header for which to update with the collected diagnostics.
225  * This function will cause an update of the given @hdr by calling the also
243 				    struct zfcp_diag_header *const hdr,  in zfcp_diag_update_buffer_limited()  argument
249 	spin_lock_irqsave(&hdr->access_lock, flags);  in zfcp_diag_update_buffer_limited()
252 	     !__zfcp_diag_test_buffer_age_isfresh(adapter->diagnostics, hdr);  in zfcp_diag_update_buffer_limited()
254 		rc = __zfcp_diag_update_buffer(adapter, hdr, buffer_update,  in zfcp_diag_update_buffer_limited()
260 	spin_unlock_irqrestore(&hdr->access_lock, flags);  in zfcp_diag_update_buffer_limited()