On Fri, May 15, 2020 at 5:43 AM Liu Bo <bo....@linux.alibaba.com> wrote: > > On Thu, May 14, 2020 at 04:07:36PM +0200, Miklos Szeredi wrote: > > Path lookup in the kernel has special rules for looking up magic symlinks > > under /proc. If a filesystem operation is instructed to follow symlinks > > (e.g. via AT_SYMLINK_FOLLOW or lack of AT_SYMLINK_NOFOLLOW), and the final > > component is such a proc symlink, then the target of the magic symlink is > > used for the operation, even if the target itself is a symlink. I.e. path > > lookup is always terminated after following a final magic symlink. > > > > Hi Miklos, > > Are these mentioned special rules supported by a recent kernel version > or are they there from day one linux?
Hi Liubo, AFAICS, these rules have been there from day one. Thanks, Miklos
