]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
RDMA/restrack: Rewrite PID namespace check to be reliable
authorLeon Romanovsky <leonro@mellanox.com>
Thu, 15 Aug 2019 08:38:29 +0000 (11:38 +0300)
committerDoug Ledford <dledford@redhat.com>
Tue, 20 Aug 2019 17:44:44 +0000 (13:44 -0400)
commit60c78668ae50d6b815ead4a62216822a92097125
tree654c4222c4f37b1e17beb4d1249bb5bf36358112
parentc8b32408b4074232d93e64b6c23b2aa96dde448e
RDMA/restrack: Rewrite PID namespace check to be reliable

task_active_pid_ns() is wrong API to check PID namespace because it
posses some restrictions and return PID namespace where the process
was allocated. It created mismatches with current namespace, which
can be different.

Rewrite whole rdma_is_visible_in_pid_ns() logic to provide reliable
results without any relation to allocated PID namespace.

Fixes: 8be565e65fa9 ("RDMA/nldev: Factor out the PID namespace check")
Fixes: 6a6c306a09b5 ("RDMA/restrack: Make is_visible_in_pid_ns() as an API")
Reviewed-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190815083834.9245-4-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
drivers/infiniband/core/nldev.c
drivers/infiniband/core/restrack.c
include/rdma/restrack.h