LU-8066 sysfs: make ping sysfs file read and writable

[fs/lustre-release.git] / lustre / mgc / lproc_mgc.c

diff --git a/lustre/mgc/lproc_mgc.c b/lustre/mgc/lproc_mgc.c
index 648b6e5..ec4ba5e 100644 (file)
--- a/lustre/mgc/lproc_mgc.c
+++ b/lustre/mgc/lproc_mgc.c
@@ -15,11 +15,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * GPL HEADER END
  */
@@ -27,7 +23,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -41,32 +37,59 @@
 #include <lprocfs_status.h>
 #include "mgc_internal.h"
 
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
+
+LDEBUGFS_SEQ_FOPS_RO_TYPE(mgc, connect_flags);
 
-LPROC_SEQ_FOPS_RO_TYPE(mgc, uuid);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, connect_flags);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, server_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, conn_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, import);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, state);
+LDEBUGFS_SEQ_FOPS_RO_TYPE(mgc, server_uuid);
 
-LPROC_SEQ_FOPS_WO_TYPE(mgc, ping);
+LDEBUGFS_SEQ_FOPS_RO_TYPE(mgc, import);
+
+LDEBUGFS_SEQ_FOPS_RO_TYPE(mgc, state);
 
 static int mgc_ir_state_seq_show(struct seq_file *m, void *v)
 {
        return lprocfs_mgc_rd_ir_state(m, m->private);
 }
-LPROC_SEQ_FOPS_RO(mgc_ir_state);
 
-struct lprocfs_seq_vars lprocfs_mgc_obd_vars[] = {
-       { "uuid",               &mgc_uuid_fops,         0,      0 },
-       { "ping",               &mgc_ping_fops,         0,      0222 },
-       { "connect_flags",      &mgc_connect_flags_fops,0,      0 },
-       { "mgs_server_uuid",    &mgc_server_uuid_fops,  0,      0 },
-       { "mgs_conn_uuid",      &mgc_conn_uuid_fops,    0,      0 },
-       { "import",             &mgc_import_fops,       0,      0 },
-       { "state",              &mgc_state_fops,        0,      0 },
-       { "ir_state",           &mgc_ir_state_fops,     0,      0 },
-       { 0 }
+LDEBUGFS_SEQ_FOPS_RO(mgc_ir_state);
+
+struct lprocfs_vars lprocfs_mgc_obd_vars[] = {
+       { .name =       "connect_flags",
+         .fops =       &mgc_connect_flags_fops },
+       { .name =       "mgs_server_uuid",
+         .fops =       &mgc_server_uuid_fops   },
+       { .name =       "import",
+         .fops =       &mgc_import_fops        },
+       { .name =       "state",
+         .fops =       &mgc_state_fops         },
+       { .name =       "ir_state",
+         .fops =       &mgc_ir_state_fops      },
+       { NULL }
 };
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
+
+LUSTRE_ATTR(mgs_conn_uuid, 0444, conn_uuid_show, NULL);
+LUSTRE_RO_ATTR(conn_uuid);
+
+LUSTRE_RW_ATTR(ping);
+
+static struct attribute *mgc_attrs[] = {
+       &lustre_attr_mgs_conn_uuid.attr,
+       &lustre_attr_conn_uuid.attr,
+       &lustre_attr_ping.attr,
+       NULL,
+};
+
+int mgc_tunables_init(struct obd_device *obd)
+{
+       int rc;
+
+       obd->obd_ktype.default_attrs = mgc_attrs;
+       obd->obd_vars = lprocfs_mgc_obd_vars;
+       rc = lprocfs_obd_setup(obd, true);
+       if (rc)
+               return rc;
+
+       return sptlrpc_lprocfs_cliobd_attach(obd);
+}