154 	char *buf;  in __blk_trace_note_message()  local
169 	buf = this_cpu_ptr(bt->msg_data);  in __blk_trace_note_message()
171 	n = vscnprintf(buf, BLK_TN_MAX_MSG, fmt, args);  in __blk_trace_note_message()
180 	trace_note(bt, current->pid, BLK_TN_MESSAGE, buf, n, cgid);  in __blk_trace_note_message()
418 	char buf[16];  in blk_dropped_read()  local
420 	snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));  in blk_dropped_read()
422 	return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));  in blk_dropped_read()
463 static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,  in blk_subbuf_start_callback()  argument
468 	if (!relay_buf_full(buf))  in blk_subbuf_start_callback()
471 	bt = buf->chan->private_data;  in blk_subbuf_start_callback()
486 						   struct rchan_buf *buf,  in blk_create_buf_file_callback()  argument
489 	return debugfs_create_file(filename, mode, parent, buf,  in blk_create_buf_file_callback()
1665 					 char *buf);
1668 					  const char *buf, size_t count);
1720 	char *buf, *s, *token;  in blk_trace_str2mask()  local
1722 	buf = kstrdup(str, GFP_KERNEL);  in blk_trace_str2mask()
1723 	if (buf == NULL)  in blk_trace_str2mask()
1725 	s = strstrip(buf);  in blk_trace_str2mask()
1746 	kfree(buf);  in blk_trace_str2mask()
1751 static ssize_t blk_trace_mask2str(char *buf, int mask)  in blk_trace_mask2str()  argument
1754 	char *p = buf;  in blk_trace_mask2str()
1759 				    (p == buf) ? "" : ",", mask_maps[i].str);  in blk_trace_mask2str()
1764 	return p - buf;  in blk_trace_mask2str()
1769 					 char *buf)  in sysfs_blk_trace_attr_show()  argument
1781 		ret = sprintf(buf, "%u\n", !!bt);  in sysfs_blk_trace_attr_show()
1786 		ret = sprintf(buf, "disabled\n");  in sysfs_blk_trace_attr_show()
1788 		ret = blk_trace_mask2str(buf, bt->act_mask);  in sysfs_blk_trace_attr_show()
1790 		ret = sprintf(buf, "%u\n", bt->pid);  in sysfs_blk_trace_attr_show()
1792 		ret = sprintf(buf, "%llu\n", bt->start_lba);  in sysfs_blk_trace_attr_show()
1794 		ret = sprintf(buf, "%llu\n", bt->end_lba);  in sysfs_blk_trace_attr_show()
1803 					  const char *buf, size_t count)  in sysfs_blk_trace_attr_store()  argument
1815 		if (kstrtoull(buf, 0, &value)) {  in sysfs_blk_trace_attr_store()
1817 			ret = blk_trace_str2mask(buf);  in sysfs_blk_trace_attr_store()
1823 		if (kstrtoull(buf, 0, &value))  in sysfs_blk_trace_attr_store()