On Wed, 2023-08-30 at 01:19 +0100, Al Viro wrote: > On Wed, Jul 05, 2023 at 02:58:11PM -0400, Jeff Layton wrote: > > > + * POSIX mandates that the old and new parent directories have their ctime and > > + * mtime updated, and that inodes of @old_dentry and @new_dentry (if any), have > > + * their ctime updated. > > APPLICATION USAGE > Some implementations mark for update the last file status change timestamp > of renamed files and some do not. Applications which make use of the > last file status change timestamp may behave differently with respect > to renamed files unless they are designed to allow for either behavior. > > So for children POSIX permits rather than mandates. Doesn't really matter; > Linux behaviour had been to touch ctime on children since way back, if > not since the very beginning. Mea culpa. You're quite correct. I'll plan to roll a small patch to update the comment over this function. Thanks! -- Jeff Layton <jlayton@xxxxxxxxxx>
