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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
commit920f50b2a44bbc5e332a3f84f7ad4040ee62fcc6 (patch)
treea4625e03301a470f1c9222c0bf7d2f15204023b2 /security/selinux
parent5c86d7e0433acb6f5d5f3cc2adf8ea3f6bc6bbda (diff)
vfs: Convert selinuxfs to use the new mount API
Convert the selinuxfs 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: Paul Moore <paul@paul-moore.com> cc: Stephen Smalley <sds@tycho.nsa.gov> cc: Eric Paris <eparis@parisplace.org> cc: selinux@vger.kernel.org cc: linux-security-module@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'security/selinux')
-rw-r--r--security/selinux/selinuxfs.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 145ee62f205a..0b3155d827a1 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -19,6 +19,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
+#include <linux/fs_context.h>
#include <linux/mount.h>
#include <linux/mutex.h>
#include <linux/init.h>
@@ -1893,7 +1894,7 @@ static struct dentry *sel_make_dir(struct dentry *dir, const char *name,
#define NULL_FILE_NAME "null"
-static int sel_fill_super(struct super_block *sb, void *data, int silent)
+static int sel_fill_super(struct super_block *sb, struct fs_context *fc)
{
struct selinux_fs_info *fsi;
int ret;
@@ -2009,10 +2010,19 @@ err:
return ret;
}
-static struct dentry *sel_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int sel_get_tree(struct fs_context *fc)
{
- return mount_single(fs_type, flags, data, sel_fill_super);
+ return get_tree_single(fc, sel_fill_super);
+}
+
+static const struct fs_context_operations sel_context_ops = {
+ .get_tree = sel_get_tree,
+};
+
+static int sel_init_fs_context(struct fs_context *fc)
+{
+ fc->ops = &sel_context_ops;
+ return 0;
}
static void sel_kill_sb(struct super_block *sb)
@@ -2023,7 +2033,7 @@ static void sel_kill_sb(struct super_block *sb)
static struct file_system_type sel_fs_type = {
.name = "selinuxfs",
- .mount = sel_mount,
+ .init_fs_context = sel_init_fs_context,
.kill_sb = sel_kill_sb,
};