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authorDavid Howells <dhowells@redhat.com>2019-03-25 16:38:30 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2019-07-04 22:01:59 -0400
commit5c86d7e0433acb6f5d5f3cc2adf8ea3f6bc6bbda (patch)
treec19b6aa5236fbc10d55e6993dfbb4c7d97f4dc48
parentb0ecc9da5ff64b59c810d1e9c82d06488805da77 (diff)
vfs: Convert securityfs to use the new mount API
Convert the securityfs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-security-module@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--security/inode.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/security/inode.c b/security/inode.c
index aacc4dabba7d..70f00064016d 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -16,6 +16,7 @@
#include <linux/sysfs.h>
#include <linux/kobject.h>
#include <linux/fs.h>
+#include <linux/fs_context.h>
#include <linux/mount.h>
#include <linux/pagemap.h>
#include <linux/init.h>
@@ -39,7 +40,7 @@ static const struct super_operations securityfs_super_operations = {
.free_inode = securityfs_free_inode,
};
-static int fill_super(struct super_block *sb, void *data, int silent)
+static int securityfs_fill_super(struct super_block *sb, struct fs_context *fc)
{
static const struct tree_descr files[] = {{""}};
int error;
@@ -53,17 +54,25 @@ static int fill_super(struct super_block *sb, void *data, int silent)
return 0;
}
-static struct dentry *get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name,
- void *data)
+static int securityfs_get_tree(struct fs_context *fc)
{
- return mount_single(fs_type, flags, data, fill_super);
+ return get_tree_single(fc, securityfs_fill_super);
+}
+
+static const struct fs_context_operations securityfs_context_ops = {
+ .get_tree = securityfs_get_tree,
+};
+
+static int securityfs_init_fs_context(struct fs_context *fc)
+{
+ fc->ops = &securityfs_context_ops;
+ return 0;
}
static struct file_system_type fs_type = {
.owner = THIS_MODULE,
.name = "securityfs",
- .mount = get_sb,
+ .init_fs_context = securityfs_init_fs_context,
.kill_sb = kill_litter_super,
};