LU-6586 mgs: deactive MDT permanently

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

diff --git a/lustre/mdc/lproc_mdc.c b/lustre/mdc/lproc_mdc.c
index d6b9c26..0466fd7 100644 (file)
--- a/lustre/mdc/lproc_mdc.c
+++ b/lustre/mdc/lproc_mdc.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -40,7 +40,43 @@
 #include <obd_class.h>
 #include <lprocfs_status.h>
 
-#ifdef LPROCFS
+#include "mdc_internal.h"
+
+#ifdef CONFIG_PROC_FS
+static int mdc_active_seq_show(struct seq_file *m, void *v)
+{
+       struct obd_device *dev = m->private;
+       int rc;
+
+       LPROCFS_CLIMP_CHECK(dev);
+       rc = seq_printf(m, "%d\n", !dev->u.cli.cl_import->imp_deactive);
+       LPROCFS_CLIMP_EXIT(dev);
+       return rc;
+}
+
+static ssize_t mdc_active_seq_write(struct file *file,
+                                   const char __user *buffer,
+                                   size_t count, loff_t *off)
+{
+       struct obd_device *dev;
+       int val, rc;
+
+       dev = ((struct seq_file *)file->private_data)->private;
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc)
+               return rc;
+       if (val < 0 || val > 1)
+               return -ERANGE;
+
+       /* opposite senses */
+       if (dev->u.cli.cl_import->imp_deactive == val)
+               rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
+       else
+               CDEBUG(D_CONFIG, "activate %d: ignoring repeat request\n", val);
+
+       return count;
+}
+LPROC_SEQ_FOPS(mdc_active);
 
 static int mdc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
 {
@@ -74,6 +110,68 @@ static ssize_t mdc_max_rpcs_in_flight_seq_write(struct file *file,
 }
 LPROC_SEQ_FOPS(mdc_max_rpcs_in_flight);
 
+
+static int mdc_max_mod_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
+{
+       struct obd_device *dev = m->private;
+       __u16 max;
+       int rc;
+
+       max = obd_get_max_mod_rpcs_in_flight(&dev->u.cli);
+       rc = seq_printf(m, "%hu\n", max);
+
+       return rc;
+}
+
+static ssize_t mdc_max_mod_rpcs_in_flight_seq_write(struct file *file,
+                                                   const char *buffer,
+                                                   size_t count,
+                                                   loff_t *off)
+{
+       struct obd_device *dev =
+                       ((struct seq_file *)file->private_data)->private;
+       int val;
+       int rc;
+
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc != 0)
+               return rc;
+
+       if (val < 0 || val > USHRT_MAX)
+               return -ERANGE;
+
+       rc = obd_set_max_mod_rpcs_in_flight(&dev->u.cli, val);
+       if (rc != 0)
+               count = rc;
+
+       return count;
+}
+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);
@@ -98,7 +196,7 @@ LPROC_SEQ_FOPS_RO(mdc_obd_max_pages_per_rpc);
 LPROC_SEQ_FOPS_RW_TYPE(mdc, import);
 LPROC_SEQ_FOPS_RW_TYPE(mdc, pinger_recov);
 
-struct lprocfs_seq_vars lprocfs_mdc_obd_vars[] = {
+struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
        { .name =       "uuid",
          .fops =       &mdc_uuid_fops          },
        { .name =       "ping",
@@ -132,6 +230,8 @@ struct lprocfs_seq_vars lprocfs_mdc_obd_vars[] = {
          .fops =       &mdc_obd_max_pages_per_rpc_fops },
        { .name =       "max_rpcs_in_flight",
          .fops =       &mdc_max_rpcs_in_flight_fops    },
+       { .name =       "max_mod_rpcs_in_flight",
+         .fops =       &mdc_max_mod_rpcs_in_flight_fops        },
        { .name =       "timeouts",
          .fops =       &mdc_timeouts_fops              },
        { .name =       "import",
@@ -140,6 +240,10 @@ struct lprocfs_seq_vars lprocfs_mdc_obd_vars[] = {
          .fops =       &mdc_state_fops                 },
        { .name =       "pinger_recov",
          .fops =       &mdc_pinger_recov_fops          },
-       { 0 }
+       { .name =       "rpc_stats",
+         .fops =       &mdc_rpc_stats_fops             },
+       { .name =       "active",
+         .fops =       &mdc_active_fops                },
+       { NULL }
 };
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */