| commit | 476ad154f3b41dd7d9a08a2f641e28388abc2fd1 | |
| author | John Fastabend <john.r.fastabend@intel.com> | |
| Tue, 14 Aug 2012 12:34:35 +0000 (14 12:34 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Thu, 16 Aug 2012 21:56:11 +0000 (16 14:56 -0700) | ||
| tree | df3621b3720766e4bf3a330d1114e8a1c5beace1 | treesnapshot (tar.gz zip) |
| parent | 48a87cc26c13b68f6cce4e9d769fcb17a6b3e4b8 | commitdiff |
net: netprio: fix cgrp create and write priomap race
A race exists where creating cgroups and also updating the priomap
may result in losing a priomap update. This is because priomap
writers are not protected by rtnl_lock.
Move priority writer into rtnl_lock()/rtnl_unlock().
CC: Neil Horman <nhorman@tuxdriver.com>
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A race exists where creating cgroups and also updating the priomap
may result in losing a priomap update. This is because priomap
writers are not protected by rtnl_lock.
Move priority writer into rtnl_lock()/rtnl_unlock().
CC: Neil Horman <nhorman@tuxdriver.com>
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/core/netprio_cgroup.c | diffblobblamehistory |