33 static bool chown_ok(struct user_namespace *mnt_userns,  in chown_ok()  argument
37 	kuid_t kuid = i_uid_into_mnt(mnt_userns, inode);  in chown_ok()
40 	if (capable_wrt_inode_uidgid(mnt_userns, inode, CAP_CHOWN))  in chown_ok()
60 static bool chgrp_ok(struct user_namespace *mnt_userns,  in chgrp_ok()  argument
63 	kgid_t kgid = i_gid_into_mnt(mnt_userns, inode);  in chgrp_ok()
64 	if (uid_eq(current_fsuid(), i_uid_into_mnt(mnt_userns, inode)) &&  in chgrp_ok()
67 	if (capable_wrt_inode_uidgid(mnt_userns, inode, CAP_CHOWN))  in chgrp_ok()
96 int setattr_prepare(struct user_namespace *mnt_userns, struct dentry *dentry,  in setattr_prepare()  argument
117 	if ((ia_valid & ATTR_UID) && !chown_ok(mnt_userns, inode, attr->ia_uid))  in setattr_prepare()
121 	if ((ia_valid & ATTR_GID) && !chgrp_ok(mnt_userns, inode, attr->ia_gid))  in setattr_prepare()
126 		if (!inode_owner_or_capable(mnt_userns, inode))  in setattr_prepare()
130                                 i_gid_into_mnt(mnt_userns, inode)) &&  in setattr_prepare()
131                     !capable_wrt_inode_uidgid(mnt_userns, inode, CAP_FSETID))  in setattr_prepare()
137 		if (!inode_owner_or_capable(mnt_userns, inode))  in setattr_prepare()
146 		error = security_inode_killpriv(mnt_userns, dentry);  in setattr_prepare()
226 void setattr_copy(struct user_namespace *mnt_userns, struct inode *inode,  in setattr_copy()  argument
243 		kgid_t kgid = i_gid_into_mnt(mnt_userns, inode);  in setattr_copy()
245 		    !capable_wrt_inode_uidgid(mnt_userns, inode, CAP_FSETID))  in setattr_copy()
252 int may_setattr(struct user_namespace *mnt_userns, struct inode *inode,  in may_setattr()  argument
270 		if (!inode_owner_or_capable(mnt_userns, inode)) {  in may_setattr()
271 			error = inode_permission(mnt_userns, inode, MAY_WRITE);  in may_setattr()
310 int notify_change(struct user_namespace *mnt_userns, struct dentry *dentry,  in notify_change()  argument
321 	error = may_setattr(mnt_userns, inode, ia_valid);  in notify_change()
396 	    !uid_valid(i_uid_into_mnt(mnt_userns, inode)))  in notify_change()
399 	    !gid_valid(i_gid_into_mnt(mnt_userns, inode)))  in notify_change()
410 		error = inode->i_op->setattr(mnt_userns, dentry, attr);  in notify_change()
412 		error = simple_setattr(mnt_userns, dentry, attr);  in notify_change()
416 		ima_inode_post_setattr(mnt_userns, dentry);  in notify_change()