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Message-Id: <e633fb92d3c20ba446e60c2c161cf07074aef374.1708709155.git.john@groves.net>
Date: Fri, 23 Feb 2024 11:42:01 -0600
From: John Groves <John@...ves.net>
To: John Groves <jgroves@...ron.com>,
Jonathan Corbet <corbet@....net>,
Dan Williams <dan.j.williams@...el.com>,
Vishal Verma <vishal.l.verma@...el.com>,
Dave Jiang <dave.jiang@...el.com>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>,
Jan Kara <jack@...e.cz>,
Matthew Wilcox <willy@...radead.org>,
linux-cxl@...r.kernel.org,
linux-fsdevel@...r.kernel.org,
linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org,
nvdimm@...ts.linux.dev
Cc: John@...ves.net,
john@...alactic.com,
Dave Chinner <david@...morbit.com>,
Christoph Hellwig <hch@...radead.org>,
dave.hansen@...ux.intel.com,
gregory.price@...verge.com,
John Groves <john@...ves.net>
Subject: [RFC PATCH 17/20] famfs: Add module stuff
This commit introduces the module init and exit machinery for famfs.
Signed-off-by: John Groves <john@...ves.net>
---
fs/famfs/famfs_inode.c | 44 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/fs/famfs/famfs_inode.c b/fs/famfs/famfs_inode.c
index ab46ec50b70d..0d659820e8ff 100644
--- a/fs/famfs/famfs_inode.c
+++ b/fs/famfs/famfs_inode.c
@@ -462,4 +462,48 @@ static struct file_system_type famfs_fs_type = {
.fs_flags = FS_USERNS_MOUNT,
};
+/*****************************************************************************************
+ * Module stuff
+ */
+static struct kobject *famfs_kobj;
+
+static int __init init_famfs_fs(void)
+{
+ int rc;
+
+#if defined(CONFIG_DEV_DAX_IOMAP)
+ pr_notice("%s: Your kernel supports famfs on /dev/dax\n", __func__);
+#else
+ pr_notice("%s: Your kernel does not support famfs on /dev/dax\n", __func__);
+#endif
+ famfs_kobj = kobject_create_and_add(MODULE_NAME, fs_kobj);
+ if (!famfs_kobj) {
+ pr_warn("Failed to create kobject\n");
+ return -ENOMEM;
+ }
+
+ rc = sysfs_create_group(famfs_kobj, &famfs_attr_group);
+ if (rc) {
+ kobject_put(famfs_kobj);
+ pr_warn("%s: Failed to create sysfs group\n", __func__);
+ return rc;
+ }
+
+ return register_filesystem(&famfs_fs_type);
+}
+
+static void
+__exit famfs_exit(void)
+{
+ sysfs_remove_group(famfs_kobj, &famfs_attr_group);
+ kobject_put(famfs_kobj);
+ unregister_filesystem(&famfs_fs_type);
+ pr_info("%s: unregistered\n", __func__);
+}
+
+
+fs_initcall(init_famfs_fs);
+module_exit(famfs_exit);
+
+MODULE_AUTHOR("John Groves, Micron Technology");
MODULE_LICENSE("GPL");
--
2.43.0
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