tree 7f7ac68d5f151c0530c202bdbee7d4594b7d6243
parent 003f76f0263cca5aeb27939f9d79525c86fad0c5
author Eric W. Biederman <ebiederm@xmission.com> 1358433933 +0000
committer Stephen Hemminger <stephen@networkplumber.org> 1359995630 -0800

iproute2: Don't propogate mounts out of ip

Some systems are now following the advice in
linux/Documentation/sharedsubtrees.txt and running with all mount
points shared between all mount namespaces by default.

After creating the mount namespace call mount on / with
MS_SLAVE|MS_REC to modify all mounts in the new mount namespace to
slave mounts if they are shared or private mounts otherwise.
Guarnateeing that changes to the mount namespace created with
"ip netns exec" don't propgate to other namespaces.

Reported-by: Petr Šabata <contyk@redhat.com>
Tested-by: Petr Šabata <contyk@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>