LU-5319 mdc: manage number of modify RPCs in flight

[fs/lustre-release.git] / lustre / mdc / lproc_mdc.c

diff --git a/lustre/mdc/lproc_mdc.c b/lustre/mdc/lproc_mdc.c
index c5cb9d8..934669d 100644 (file)
--- a/lustre/mdc/lproc_mdc.c
+++ b/lustre/mdc/lproc_mdc.c
@@ -114,6 +114,30 @@ static ssize_t mdc_max_mod_rpcs_in_flight_seq_write(struct file *file,
 }
 LPROC_SEQ_FOPS(mdc_max_mod_rpcs_in_flight);
 
+
+static int mdc_rpc_stats_seq_show(struct seq_file *seq, void *v)
+{
+       struct obd_device *dev = seq->private;
+
+       return obd_mod_rpc_stats_seq_show(&dev->u.cli, seq);
+}
+
+
+static ssize_t mdc_rpc_stats_seq_write(struct file *file,
+                                      const char __user *buf,
+                                      size_t len, loff_t *off)
+{
+       struct seq_file *seq = file->private_data;
+       struct obd_device *dev = seq->private;
+       struct client_obd *cli = &dev->u.cli;
+
+       lprocfs_oh_clear(&cli->cl_mod_rpcs_hist);
+
+       return len;
+}
+LPROC_SEQ_FOPS(mdc_rpc_stats);
+
+
 LPROC_SEQ_FOPS_WO_TYPE(mdc, ping);
 
 LPROC_SEQ_FOPS_RO_TYPE(mdc, uuid);
@@ -182,6 +206,8 @@ struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
          .fops =       &mdc_state_fops                 },
        { .name =       "pinger_recov",
          .fops =       &mdc_pinger_recov_fops          },
+       { .name =       "rpc_stats",
+         .fops =       &mdc_rpc_stats_fops             },
        { NULL }
 };
 #endif /* CONFIG_PROC_FS */