staging/lustre/ldlm: move all remaining files from procfs to debugfs

Move all files except stats. It will be moved later after change
type of obddev->obd_proc_entry member.

Signed-off-by: Dmitry Eremin <dmiter4ever@gmail.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 61 insertions, 67 deletions

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index 1e3190f..50e049b 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -61,17 +61,17 @@ LIST_HEAD(ldlm_cli_active_namespace_list);
 /* Client namespaces that don't have any locks in them */
 LIST_HEAD(ldlm_cli_inactive_namespace_list);
 
-struct proc_dir_entry *ldlm_type_proc_dir = NULL;
-static struct proc_dir_entry *ldlm_ns_proc_dir = NULL;
-struct proc_dir_entry *ldlm_svc_proc_dir = NULL;
+static struct dentry *ldlm_debugfs_dir;
+static struct dentry *ldlm_ns_debugfs_dir;
+struct dentry *ldlm_svc_debugfs_dir;
 
 /* during debug dump certain amount of granted locks for one resource to avoid
  * DDOS. */
 unsigned int ldlm_dump_granted_max = 256;
 
-#if defined(CONFIG_PROC_FS)
-static ssize_t lprocfs_wr_dump_ns(struct file *file, const char __user *buffer,
-				  size_t count, loff_t *off)
+static ssize_t
+lprocfs_wr_dump_ns(struct file *file, const char __user *buffer,
+		   size_t count, loff_t *off)
 {
 	ldlm_dump_all_namespaces(LDLM_NAMESPACE_SERVER, D_DLMTRACE);
 	ldlm_dump_all_namespaces(LDLM_NAMESPACE_CLIENT, D_DLMTRACE);
@@ -81,72 +81,74 @@ LPROC_SEQ_FOPS_WR_ONLY(ldlm, dump_ns);
 
 LPROC_SEQ_FOPS_RW_TYPE(ldlm_rw, uint);
 
-int ldlm_proc_setup(void)
+static struct lprocfs_vars ldlm_debugfs_list[] = {
+	{ "dump_namespaces", &ldlm_dump_ns_fops, NULL, 0222 },
+	{ "dump_granted_max", &ldlm_rw_uint_fops, &ldlm_dump_granted_max },
+	{ NULL }
+};
+
+int ldlm_debugfs_setup(void)
 {
 	int rc;
-	struct lprocfs_vars list[] = {
-		{ "dump_namespaces", &ldlm_dump_ns_fops, NULL, 0222 },
-		{ "dump_granted_max", &ldlm_rw_uint_fops,
-		  &ldlm_dump_granted_max },
-		{ NULL } };
-	LASSERT(ldlm_ns_proc_dir == NULL);
-
-	ldlm_type_proc_dir = lprocfs_register(OBD_LDLM_DEVICENAME,
-					      proc_lustre_root,
-					      NULL, NULL);
-	if (IS_ERR(ldlm_type_proc_dir)) {
+
+	ldlm_debugfs_dir = ldebugfs_register(OBD_LDLM_DEVICENAME,
+					     debugfs_lustre_root,
+					     NULL, NULL);
+	if (IS_ERR_OR_NULL(ldlm_debugfs_dir)) {
 		CERROR("LProcFS failed in ldlm-init\n");
-		rc = PTR_ERR(ldlm_type_proc_dir);
+		rc = ldlm_debugfs_dir ? PTR_ERR(ldlm_debugfs_dir) : -ENOMEM;
 		goto err;
 	}
 
-	ldlm_ns_proc_dir = lprocfs_register("namespaces",
-					    ldlm_type_proc_dir,
-					    NULL, NULL);
-	if (IS_ERR(ldlm_ns_proc_dir)) {
+	ldlm_ns_debugfs_dir = ldebugfs_register("namespaces",
+						ldlm_debugfs_dir,
+						NULL, NULL);
+	if (IS_ERR_OR_NULL(ldlm_ns_debugfs_dir)) {
 		CERROR("LProcFS failed in ldlm-init\n");
-		rc = PTR_ERR(ldlm_ns_proc_dir);
+		rc = ldlm_ns_debugfs_dir ? PTR_ERR(ldlm_ns_debugfs_dir)
+					 : -ENOMEM;
 		goto err_type;
 	}
 
-	ldlm_svc_proc_dir = lprocfs_register("services",
-					    ldlm_type_proc_dir,
-					    NULL, NULL);
-	if (IS_ERR(ldlm_svc_proc_dir)) {
+	ldlm_svc_debugfs_dir = ldebugfs_register("services",
+						 ldlm_debugfs_dir,
+						 NULL, NULL);
+	if (IS_ERR_OR_NULL(ldlm_svc_debugfs_dir)) {
 		CERROR("LProcFS failed in ldlm-init\n");
-		rc = PTR_ERR(ldlm_svc_proc_dir);
+		rc = ldlm_svc_debugfs_dir ? PTR_ERR(ldlm_svc_debugfs_dir)
+					  : -ENOMEM;
 		goto err_ns;
 	}
 
-	rc = lprocfs_add_vars(ldlm_type_proc_dir, list, NULL);
+	rc = ldebugfs_add_vars(ldlm_debugfs_dir, ldlm_debugfs_list, NULL);
 
 	return 0;
 
 err_ns:
-	lprocfs_remove(&ldlm_ns_proc_dir);
+	ldebugfs_remove(&ldlm_ns_debugfs_dir);
 err_type:
-	lprocfs_remove(&ldlm_type_proc_dir);
+	ldebugfs_remove(&ldlm_debugfs_dir);
 err:
-	ldlm_svc_proc_dir = NULL;
-	ldlm_type_proc_dir = NULL;
-	ldlm_ns_proc_dir = NULL;
+	ldlm_svc_debugfs_dir = NULL;
+	ldlm_ns_debugfs_dir = NULL;
+	ldlm_debugfs_dir = NULL;
 	return rc;
 }
 
-void ldlm_proc_cleanup(void)
+void ldlm_debugfs_cleanup(void)
 {
-	if (ldlm_svc_proc_dir)
-		lprocfs_remove(&ldlm_svc_proc_dir);
+	if (!IS_ERR_OR_NULL(ldlm_svc_debugfs_dir))
+		ldebugfs_remove(&ldlm_svc_debugfs_dir);
 
-	if (ldlm_ns_proc_dir)
-		lprocfs_remove(&ldlm_ns_proc_dir);
+	if (!IS_ERR_OR_NULL(ldlm_ns_debugfs_dir))
+		ldebugfs_remove(&ldlm_ns_debugfs_dir);
 
-	if (ldlm_type_proc_dir)
-		lprocfs_remove(&ldlm_type_proc_dir);
+	if (!IS_ERR_OR_NULL(ldlm_debugfs_dir))
+		ldebugfs_remove(&ldlm_debugfs_dir);
 
-	ldlm_svc_proc_dir = NULL;
-	ldlm_type_proc_dir = NULL;
-	ldlm_ns_proc_dir = NULL;
+	ldlm_svc_debugfs_dir = NULL;
+	ldlm_ns_debugfs_dir = NULL;
+	ldlm_debugfs_dir = NULL;
 }
 
 static ssize_t resource_count_show(struct kobject *kobj, struct attribute *attr,
@@ -369,13 +371,13 @@ static struct kobj_type ldlm_ns_ktype = {
 	.release        = ldlm_ns_release,
 };
 
-void ldlm_namespace_proc_unregister(struct ldlm_namespace *ns)
+static void ldlm_namespace_debugfs_unregister(struct ldlm_namespace *ns)
 {
-	if (ns->ns_proc_dir_entry == NULL)
+	if (IS_ERR_OR_NULL(ns->ns_debugfs_entry))
 		CERROR("dlm namespace %s has no procfs dir?\n",
 		       ldlm_ns_name(ns));
 	else
-		lprocfs_remove(&ns->ns_proc_dir_entry);
+		ldebugfs_remove(&ns->ns_debugfs_entry);
 
 	if (ns->ns_stats != NULL)
 		lprocfs_free_stats(&ns->ns_stats);
@@ -408,31 +410,23 @@ int ldlm_namespace_sysfs_register(struct ldlm_namespace *ns)
 	return err;
 }
 
-int ldlm_namespace_proc_register(struct ldlm_namespace *ns)
+static int ldlm_namespace_debugfs_register(struct ldlm_namespace *ns)
 {
-	struct proc_dir_entry *ns_pde;
-
-	LASSERT(ns != NULL);
-	LASSERT(ns->ns_rs_hash != NULL);
+	struct dentry *ns_entry;
 
-	if (ns->ns_proc_dir_entry != NULL) {
-		ns_pde = ns->ns_proc_dir_entry;
+	if (!IS_ERR_OR_NULL(ns->ns_debugfs_entry)) {
+		ns_entry = ns->ns_debugfs_entry;
 	} else {
-		ns_pde = proc_mkdir(ldlm_ns_name(ns), ldlm_ns_proc_dir);
-		if (ns_pde == NULL)
+		ns_entry = debugfs_create_dir(ldlm_ns_name(ns),
+					      ldlm_ns_debugfs_dir);
+		if (ns_entry == NULL)
 			return -ENOMEM;
-		ns->ns_proc_dir_entry = ns_pde;
+		ns->ns_debugfs_entry = ns_entry;
 	}
 
 	return 0;
 }
 #undef MAX_STRING_SIZE
-#else /* CONFIG_PROC_FS */
-
-#define ldlm_namespace_proc_unregister(ns)      ({; })
-#define ldlm_namespace_proc_register(ns)	({0; })
-
-#endif /* CONFIG_PROC_FS */
 
 static unsigned ldlm_res_hop_hash(struct cfs_hash *hs,
 				  const void *key, unsigned mask)
@@ -680,7 +674,7 @@ struct ldlm_namespace *ldlm_namespace_new(struct obd_device *obd, char *name,
 		goto out_hash;
 	}
 
-	rc = ldlm_namespace_proc_register(ns);
+	rc = ldlm_namespace_debugfs_register(ns);
 	if (rc != 0) {
 		CERROR("Can't initialize ns proc, rc %d\n", rc);
 		goto out_sysfs;
@@ -696,7 +690,7 @@ struct ldlm_namespace *ldlm_namespace_new(struct obd_device *obd, char *name,
 	ldlm_namespace_register(ns, client);
 	return ns;
 out_proc:
-	ldlm_namespace_proc_unregister(ns);
+	ldlm_namespace_debugfs_unregister(ns);
 out_sysfs:
 	ldlm_namespace_sysfs_unregister(ns);
 	ldlm_namespace_cleanup(ns, 0);
@@ -944,7 +938,7 @@ void ldlm_namespace_free_post(struct ldlm_namespace *ns)
 	 * Removing it after @dir may cause oops. */
 	ldlm_pool_fini(&ns->ns_pool);
 
-	ldlm_namespace_proc_unregister(ns);
+	ldlm_namespace_debugfs_unregister(ns);
 	cfs_hash_putref(ns->ns_rs_hash);
 	/* Namespace \a ns should be not on list at this time, otherwise
 	 * this will cause issues related to using freed \a ns in poold