On Fri, Mar 01, 2019 at 11:06:22PM +0900, Wang Shilong wrote: > From: Wang Shilong <wshilong@xxxxxxx> > > From: Wang Shilong <wshilong@xxxxxxx> > > Cc: linux-man@xxxxxxxxxxxxxxx > Signed-off-by: Wang Shilong <wshilong@xxxxxxx> > --- > man2/chown.2 | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/man2/chown.2 b/man2/chown.2 > index 50db789ac..fad74df20 100644 > --- a/man2/chown.2 > +++ b/man2/chown.2 > @@ -217,6 +217,11 @@ instead operate on the link itself, like > .BR fchownat () > dereferences symbolic links, like > .BR chown ().) > +.TP > +.B AT_FCHOWN_PROJID > +Use > +.I group > +to change file's project ID instead of its group ID. Needs to document init_user_ns constraint. > .PP > See > .BR openat (2) Also missing new ENOSPC error that attempting to change a project ID can result in. Also should document the EPERM error condition when changing project ID in wrong userns, and EINVAL if an invalid project ID is supplied. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx
