diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2024-02-26 02:06:37 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2025-11-16 01:35:05 -0500 |
| commit | cd08d17f39b7b7c54bfa35437fa4cd4e144d8179 (patch) | |
| tree | 3ff305dcee1528576b7b6537dbbf4526db2a6ecd /security | |
| parent | d1e4a99358ea86854882ee325d4ceedd97f46e97 (diff) | |
convert selinuxfs
Tree has invariant part + two subtrees that get replaced upon each
policy load. Invariant parts stay for the lifetime of filesystem,
these two subdirs - from policy load to policy load (serialized
on lock_rename(root, ...)).
All object creations are via d_alloc_name()+d_add() inside selinuxfs,
all removals are via simple_recursive_removal().
Turn those d_add() into d_make_persistent()+dput() and that's mostly it.
Acked-by: Paul Moore <paul@paul-moore.com>
Reviewed-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Tested-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'security')
| -rw-r--r-- | security/selinux/selinuxfs.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index f088776dbbd3..eae565358db4 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -1205,7 +1205,8 @@ static struct dentry *sel_attach(struct dentry *parent, const char *name, iput(inode); return ERR_PTR(-ENOMEM); } - d_add(dentry, inode); + d_make_persistent(dentry, inode); + dput(dentry); return dentry; } @@ -1934,10 +1935,11 @@ static struct dentry *sel_make_swapover_dir(struct super_block *sb, /* directory inodes start off with i_nlink == 2 (for "." entry) */ inc_nlink(inode); inode_lock(sb->s_root->d_inode); - d_add(dentry, inode); + d_make_persistent(dentry, inode); inc_nlink(sb->s_root->d_inode); inode_unlock(sb->s_root->d_inode); - return dentry; + dput(dentry); + return dentry; // borrowed } #define NULL_FILE_NAME "null" @@ -2080,7 +2082,7 @@ static int sel_init_fs_context(struct fs_context *fc) static void sel_kill_sb(struct super_block *sb) { selinux_fs_info_free(sb); - kill_litter_super(sb); + kill_anon_super(sb); } static struct file_system_type sel_fs_type = { |