On Thu, Nov 28, 2019 at 04:59:39PM +0100, Miklos Szeredi wrote: > Unlike the others, this is _not_ a standard option accepted by mount(8). > > In fact SB_POSIXACL is an internal flag, and accepting MS_POSIXACL on the > mount(2) interface is possibly a bug. > > The only filesystem that apparently wants to handle the "posixacl" option > is 9p, but it has special handling of that option besides setting > SB_POSIXACL. Huh? For e.g. ceph having -o posixacl and -o acl are currently equivalent; your patch would seem to break that, wouldn't it?
