+#define LPROCFS_OBD_OP_INIT(base, stats, op) \
+do { \
+ unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
+ LASSERT(coffset < stats->ls_num); \
+ lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
+} while (0)
+
+int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
+{
+ struct lprocfs_stats *stats;
+ unsigned int num_stats;
+ int rc, i;
+
+ LASSERT(obd->obd_stats == NULL);
+ LASSERT(obd->obd_proc_entry != NULL);
+ LASSERT(obd->obd_cntr_base == 0);
+
+ num_stats = 1 + OBD_COUNTER_OFFSET(unpin) +
+ num_private_stats;
+ stats = lprocfs_alloc_stats(num_stats);
+ if (stats == NULL)
+ return -ENOMEM;
+
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, syncfs);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, open);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, close);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw_async);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, punch);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, sync);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, migrate);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, copy);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, iterate);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, enqueue);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, match);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel_unused);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, log_add);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, log_cancel);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, san_preprw);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, mark_page_dirty);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, clear_dirty_pages);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, last_dirty_offset);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpin);
+
+ for (i = num_private_stats; i < num_stats; i++) {
+ /* If this LBUGs, it is likely that an obd
+ * operation was added to struct obd_ops in
+ * <linux/obd.h>, and that the corresponding line item
+ * LPROCFS_OBD_OP_INIT(.., .., opname)
+ * is missing from the list above. */
+ if (stats->ls_percpu[0]->lp_cntr[i].lc_name == NULL) {
+ CERROR("Missing obd_stat initializer obd_op "
+ "operation at offset %d. Aborting.\n",
+ i - num_private_stats);
+ LBUG();
+ }
+ }
+ rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
+ if (rc < 0) {
+ lprocfs_free_stats(stats);
+ } else {
+ obd->obd_stats = stats;
+ obd->obd_cntr_base = num_private_stats;
+ }
+ return rc;