On Tue, Feb 12, 2019 at 09:54:47AM -0500, demioben...@gmail.com wrote: > From: "Demi M. Obenour" <demioben...@gmail.com> > > While testing the O_PATHSTATIC patch, I discovered that Linux does not > return any error if an invalid flag is passed to open(2). This prevents > adding new flags without a (minor) risk of breaking userspace. > Therefore, add a check for invalid flags, and return -EINVAL if any are > found.
... which would qualtify as userland ABI breakage all by itself.
