summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/block/drbd/drbd_debugfs.c64
-rw-r--r--drivers/block/drbd/drbd_debugfs.h4
-rw-r--r--drivers/block/drbd/drbd_main.c3
3 files changed, 5 insertions, 66 deletions
diff --git a/drivers/block/drbd/drbd_debugfs.c b/drivers/block/drbd/drbd_debugfs.c
index f13b48ff5f43..b3b9cd5628fd 100644
--- a/drivers/block/drbd/drbd_debugfs.c
+++ b/drivers/block/drbd/drbd_debugfs.c
@@ -465,35 +465,20 @@ static const struct file_operations in_flight_summary_fops = {
void drbd_debugfs_resource_add(struct drbd_resource *resource)
{
struct dentry *dentry;
- if (!drbd_debugfs_resources)
- return;
dentry = debugfs_create_dir(resource->name, drbd_debugfs_resources);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
resource->debugfs_res = dentry;
dentry = debugfs_create_dir("volumes", resource->debugfs_res);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
resource->debugfs_res_volumes = dentry;
dentry = debugfs_create_dir("connections", resource->debugfs_res);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
resource->debugfs_res_connections = dentry;
dentry = debugfs_create_file("in_flight_summary", 0440,
resource->debugfs_res, resource,
&in_flight_summary_fops);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
resource->debugfs_res_in_flight_summary = dentry;
- return;
-
-fail:
- drbd_debugfs_resource_cleanup(resource);
- drbd_err(resource, "failed to create debugfs dentry\n");
}
static void drbd_debugfs_remove(struct dentry **dp)
@@ -636,35 +621,22 @@ void drbd_debugfs_connection_add(struct drbd_connection *connection)
{
struct dentry *conns_dir = connection->resource->debugfs_res_connections;
struct dentry *dentry;
- if (!conns_dir)
- return;
/* Once we enable mutliple peers,
* these connections will have descriptive names.
* For now, it is just the one connection to the (only) "peer". */
dentry = debugfs_create_dir("peer", conns_dir);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
connection->debugfs_conn = dentry;
dentry = debugfs_create_file("callback_history", 0440,
connection->debugfs_conn, connection,
&connection_callback_history_fops);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
connection->debugfs_conn_callback_history = dentry;
dentry = debugfs_create_file("oldest_requests", 0440,
connection->debugfs_conn, connection,
&connection_oldest_requests_fops);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
connection->debugfs_conn_oldest_requests = dentry;
- return;
-
-fail:
- drbd_debugfs_connection_cleanup(connection);
- drbd_err(connection, "failed to create debugfs dentry\n");
}
void drbd_debugfs_connection_cleanup(struct drbd_connection *connection)
@@ -809,8 +781,6 @@ void drbd_debugfs_device_add(struct drbd_device *device)
snprintf(vnr_buf, sizeof(vnr_buf), "%u", device->vnr);
dentry = debugfs_create_dir(vnr_buf, vols_dir);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
device->debugfs_vol = dentry;
snprintf(minor_buf, sizeof(minor_buf), "%u", device->minor);
@@ -819,18 +789,14 @@ void drbd_debugfs_device_add(struct drbd_device *device)
if (!slink_name)
goto fail;
dentry = debugfs_create_symlink(minor_buf, drbd_debugfs_minors, slink_name);
+ device->debugfs_minor = dentry;
kfree(slink_name);
slink_name = NULL;
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
- device->debugfs_minor = dentry;
#define DCF(name) do { \
dentry = debugfs_create_file(#name, 0440, \
device->debugfs_vol, device, \
&device_ ## name ## _fops); \
- if (IS_ERR_OR_NULL(dentry)) \
- goto fail; \
device->debugfs_vol_ ## name = dentry; \
} while (0)
@@ -864,19 +830,9 @@ void drbd_debugfs_peer_device_add(struct drbd_peer_device *peer_device)
struct dentry *dentry;
char vnr_buf[8];
- if (!conn_dir)
- return;
-
snprintf(vnr_buf, sizeof(vnr_buf), "%u", peer_device->device->vnr);
dentry = debugfs_create_dir(vnr_buf, conn_dir);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
peer_device->debugfs_peer_dev = dentry;
- return;
-
-fail:
- drbd_debugfs_peer_device_cleanup(peer_device);
- drbd_err(peer_device, "failed to create debugfs entries\n");
}
void drbd_debugfs_peer_device_cleanup(struct drbd_peer_device *peer_device)
@@ -917,35 +873,19 @@ void drbd_debugfs_cleanup(void)
drbd_debugfs_remove(&drbd_debugfs_root);
}
-int __init drbd_debugfs_init(void)
+void __init drbd_debugfs_init(void)
{
struct dentry *dentry;
dentry = debugfs_create_dir("drbd", NULL);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
drbd_debugfs_root = dentry;
dentry = debugfs_create_file("version", 0444, drbd_debugfs_root, NULL, &drbd_version_fops);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
drbd_debugfs_version = dentry;
dentry = debugfs_create_dir("resources", drbd_debugfs_root);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
drbd_debugfs_resources = dentry;
dentry = debugfs_create_dir("minors", drbd_debugfs_root);
- if (IS_ERR_OR_NULL(dentry))
- goto fail;
drbd_debugfs_minors = dentry;
- return 0;
-
-fail:
- drbd_debugfs_cleanup();
- if (dentry)
- return PTR_ERR(dentry);
- else
- return -EINVAL;
}
diff --git a/drivers/block/drbd/drbd_debugfs.h b/drivers/block/drbd/drbd_debugfs.h
index 4ecfbb3358d7..58e31cef0844 100644
--- a/drivers/block/drbd/drbd_debugfs.h
+++ b/drivers/block/drbd/drbd_debugfs.h
@@ -6,7 +6,7 @@
#include "drbd_int.h"
#ifdef CONFIG_DEBUG_FS
-int __init drbd_debugfs_init(void);
+void __init drbd_debugfs_init(void);
void drbd_debugfs_cleanup(void);
void drbd_debugfs_resource_add(struct drbd_resource *resource);
@@ -22,7 +22,7 @@ void drbd_debugfs_peer_device_add(struct drbd_peer_device *peer_device);
void drbd_debugfs_peer_device_cleanup(struct drbd_peer_device *peer_device);
#else
-static inline int __init drbd_debugfs_init(void) { return -ENODEV; }
+static inline void __init drbd_debugfs_init(void) { }
static inline void drbd_debugfs_cleanup(void) { }
static inline void drbd_debugfs_resource_add(struct drbd_resource *resource) { }
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 541b31fa42b3..40edaf87241c 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -3009,8 +3009,7 @@ static int __init drbd_init(void)
spin_lock_init(&retry.lock);
INIT_LIST_HEAD(&retry.writes);
- if (drbd_debugfs_init())
- pr_notice("failed to initialize debugfs -- will not be available\n");
+ drbd_debugfs_init();
pr_info("initialized. "
"Version: " REL_VERSION " (api:%d/proto:%d-%d)\n",
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 21:22:34 +0000