On Thu, Dec 13, 2018 at 1:10 PM Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > > On Thu, Dec 13, 2018 at 05:57:17AM -0600, Goldwyn Rodrigues wrote: > > A user can open(O_WRONLY | O_RDWR) and the options are valid. > > However, OPEN_FMODE() evaluates both FMODE_READ and FMODE_WRITE, > > as negative. We also need to protect the lower layers from this > > anomaly. > > > > Solve it by dropping O_WRONLY, so O_RDWR takes precedence. > > Congratulations, you've broken fdutils... Passing 3 in lower bits > of open() flags is *not* the same as O_RDWR; behaiviour is > different and deliberately chosen by existing userland code. > > IOW, NAK. I am eager to hear what it means then.
