On Wed, 19 Dec 2007, Al Viro wrote: > On Wed, Dec 19, 2007 at 02:43:26PM +0100, Bodo Eggert wrote:
> > Since nobody knows about this "security boundary" and everybody knows about > > the annoying "can't link across bind-mountpoints bug", > > ... how about teaching people to RTFM? Starting, perhaps, with man 2 link? What about reading POSIX which says 1264 [EXDEV] 1265 Improper link. A link to a file on another file system was attempted. So if the link creates a file on NOT another filesystem (which is the point of bind mounts), it should NOT return EXDEV. Having an artificial boundary between different views to a fs may happen to be a security feature if used with care, but most users do expect the opposite and wonder why mv is needlessly slow. I'm not even sure if defaulting to having a barrier is sane at all, but if people confuse filesystems and mountpoints^W^W^W^Wuse this feature, they will depend on this feature not changing:-) -- "It is generally inadvisable to eject directly over the area you just bombed." -U.S. Air Force Manual -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
