1 files changed, 23 insertions, 23 deletions

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index ee6dfa577c93..541cf3717fc2 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -19,7 +19,7 @@
 #include "overlayfs.h"
 
 
-int ovl_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
+int ovl_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 		struct iattr *attr)
 {
 	int err;
@@ -28,7 +28,7 @@ int ovl_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
 	struct dentry *upperdentry;
 	const struct cred *old_cred;
 
-	err = setattr_prepare(&init_user_ns, dentry, attr);
+	err = setattr_prepare(&nop_mnt_idmap, dentry, attr);
 	if (err)
 		return err;
 
@@ -153,7 +153,7 @@ static void ovl_map_dev_ino(struct dentry *dentry, struct kstat *stat, int fsid)
 	}
 }
 
-int ovl_getattr(struct user_namespace *mnt_userns, const struct path *path,
+int ovl_getattr(struct mnt_idmap *idmap, const struct path *path,
 		struct kstat *stat, u32 request_mask, unsigned int flags)
 {
 	struct dentry *dentry = path->dentry;
@@ -278,7 +278,7 @@ out:
 	return err;
 }
 
-int ovl_permission(struct user_namespace *mnt_userns,
+int ovl_permission(struct mnt_idmap *idmap,
 		   struct inode *inode, int mask)
 {
 	struct inode *upperinode = ovl_inode_upper(inode);
@@ -298,7 +298,7 @@ int ovl_permission(struct user_namespace *mnt_userns,
 	 * Check overlay inode with the creds of task and underlying inode
 	 * with creds of mounter
 	 */
-	err = generic_permission(&init_user_ns, inode, mask);
+	err = generic_permission(&nop_mnt_idmap, inode, mask);
 	if (err)
 		return err;
 
@@ -310,7 +310,7 @@ int ovl_permission(struct user_namespace *mnt_userns,
 		/* Make sure mounter can read file for copy up later */
 		mask |= MAY_READ;
 	}
-	err = inode_permission(mnt_user_ns(realpath.mnt), realinode, mask);
+	err = inode_permission(mnt_idmap(realpath.mnt), realinode, mask);
 	revert_creds(old_cred);
 
 	return err;
@@ -361,7 +361,7 @@ int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char *name,
 	if (!value && !upperdentry) {
 		ovl_path_lower(dentry, &realpath);
 		old_cred = ovl_override_creds(dentry->d_sb);
-		err = vfs_getxattr(mnt_user_ns(realpath.mnt), realdentry, name, NULL, 0);
+		err = vfs_getxattr(mnt_idmap(realpath.mnt), realdentry, name, NULL, 0);
 		revert_creds(old_cred);
 		if (err < 0)
 			goto out_drop_write;
@@ -403,7 +403,7 @@ int ovl_xattr_get(struct dentry *dentry, struct inode *inode, const char *name,
 
 	ovl_i_path_real(inode, &realpath);
 	old_cred = ovl_override_creds(dentry->d_sb);
-	res = vfs_getxattr(mnt_user_ns(realpath.mnt), realpath.dentry, name, value, size);
+	res = vfs_getxattr(mnt_idmap(realpath.mnt), realpath.dentry, name, value, size);
 	revert_creds(old_cred);
 	return res;
 }
@@ -463,7 +463,7 @@ ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size)
  * alter the POSIX ACLs for the underlying filesystem.
  */
 static void ovl_idmap_posix_acl(const struct inode *realinode,
-				struct user_namespace *mnt_userns,
+				struct mnt_idmap *idmap,
 				struct posix_acl *acl)
 {
 	struct user_namespace *fs_userns = i_user_ns(realinode);
@@ -475,11 +475,11 @@ static void ovl_idmap_posix_acl(const struct inode *realinode,
 		struct posix_acl_entry *e = &acl->a_entries[i];
 		switch (e->e_tag) {
 		case ACL_USER:
-			vfsuid = make_vfsuid(mnt_userns, fs_userns, e->e_uid);
+			vfsuid = make_vfsuid(idmap, fs_userns, e->e_uid);
 			e->e_uid = vfsuid_into_kuid(vfsuid);
 			break;
 		case ACL_GROUP:
-			vfsgid = make_vfsgid(mnt_userns, fs_userns, e->e_gid);
+			vfsgid = make_vfsgid(idmap, fs_userns, e->e_gid);
 			e->e_gid = vfsgid_into_kgid(vfsgid);
 			break;
 		}
@@ -514,15 +514,15 @@ struct posix_acl *ovl_get_acl_path(const struct path *path,
 				   const char *acl_name, bool noperm)
 {
 	struct posix_acl *real_acl, *clone;
-	struct user_namespace *mnt_userns;
+	struct mnt_idmap *idmap;
 	struct inode *realinode = d_inode(path->dentry);
 
-	mnt_userns = mnt_user_ns(path->mnt);
+	idmap = mnt_idmap(path->mnt);
 
 	if (noperm)
 		real_acl = get_inode_acl(realinode, posix_acl_type(acl_name));
 	else
-		real_acl = vfs_get_acl(mnt_userns, path->dentry, acl_name);
+		real_acl = vfs_get_acl(idmap, path->dentry, acl_name);
 	if (IS_ERR_OR_NULL(real_acl))
 		return real_acl;
 
@@ -540,7 +540,7 @@ struct posix_acl *ovl_get_acl_path(const struct path *path,
 	if (!clone)
 		return ERR_PTR(-ENOMEM);
 
-	ovl_idmap_posix_acl(realinode, mnt_userns, clone);
+	ovl_idmap_posix_acl(realinode, idmap, clone);
 	return clone;
 }
 
@@ -555,7 +555,7 @@ struct posix_acl *ovl_get_acl_path(const struct path *path,
  *
  * This is obviously only relevant when idmapped layers are used.
  */
-struct posix_acl *do_ovl_get_acl(struct user_namespace *mnt_userns,
+struct posix_acl *do_ovl_get_acl(struct mnt_idmap *idmap,
 				 struct inode *inode, int type,
 				 bool rcu, bool noperm)
 {
@@ -618,7 +618,7 @@ static int ovl_set_or_remove_acl(struct dentry *dentry, struct inode *inode,
 
 		ovl_path_lower(dentry, &realpath);
 		old_cred = ovl_override_creds(dentry->d_sb);
-		real_acl = vfs_get_acl(mnt_user_ns(realpath.mnt), realdentry,
+		real_acl = vfs_get_acl(mnt_idmap(realpath.mnt), realdentry,
 				       acl_name);
 		revert_creds(old_cred);
 		if (IS_ERR(real_acl)) {
@@ -651,7 +651,7 @@ out_drop_write:
 	return err;
 }
 
-int ovl_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
+int ovl_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
 		struct posix_acl *acl, int type)
 {
 	int err;
@@ -665,7 +665,7 @@ int ovl_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
 		return -EOPNOTSUPP;
 	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
 		return acl ? -EACCES : 0;
-	if (!inode_owner_or_capable(&init_user_ns, inode))
+	if (!inode_owner_or_capable(&nop_mnt_idmap, inode))
 		return -EPERM;
 
 	/*
@@ -674,10 +674,10 @@ int ovl_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
 	 */
 	if (unlikely(inode->i_mode & S_ISGID) && type == ACL_TYPE_ACCESS &&
 	    !in_group_p(inode->i_gid) &&
-	    !capable_wrt_inode_uidgid(&init_user_ns, inode, CAP_FSETID)) {
+	    !capable_wrt_inode_uidgid(&nop_mnt_idmap, inode, CAP_FSETID)) {
 		struct iattr iattr = { .ia_valid = ATTR_KILL_SGID };
 
-		err = ovl_setattr(&init_user_ns, dentry, &iattr);
+		err = ovl_setattr(&nop_mnt_idmap, dentry, &iattr);
 		if (err)
 			return err;
 	}
@@ -755,10 +755,10 @@ int ovl_real_fileattr_set(const struct path *realpath, struct fileattr *fa)
 	if (err)
 		return err;
 
-	return vfs_fileattr_set(mnt_user_ns(realpath->mnt), realpath->dentry, fa);
+	return vfs_fileattr_set(mnt_idmap(realpath->mnt), realpath->dentry, fa);
 }
 
-int ovl_fileattr_set(struct user_namespace *mnt_userns,
+int ovl_fileattr_set(struct mnt_idmap *idmap,
 		     struct dentry *dentry, struct fileattr *fa)
 {
 	struct inode *inode = d_inode(dentry);