diff options
| author | Jason Gunthorpe <jgg@mellanox.com> | 2018-09-16 20:48:08 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-09-21 11:58:36 -0400 |
| commit | f27a0d50a4bc2861b472c2e3740d63a29d1ac460 (patch) | |
| tree | 6119d5f05050d54525288a17e26f13f6475fe175 /drivers/infiniband/hw/mlx5/odp.c | |
| parent | c9990ab39b6e911003bab10a6da96e98ab1503a3 (diff) | |
RDMA/umem: Use umem->owning_mm inside ODP
Since ODP had a single struct mmu_notifier located in the ucontext it
could only handle a single MM at a time, and this prevented it from using
the new owning_mm system.
With the prior rework it is now simple to let ODP track multiple MMs per
ucontext, finish the job so that the per_mm is allocated on a mm by mm
basis, and freed when the last umem is dropped from the ucontext.
As a side effect the new saner locking removes the lockdep splat about
nesting the umem_rwsem between mmu_notifier_unregister and
ib_umem_odp_release.
It also makes ODP work with multiple processes, across, fork, etc.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/odp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/odp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c index 9982b5f4e598..b04eb6775326 100644 --- a/drivers/infiniband/hw/mlx5/odp.c +++ b/drivers/infiniband/hw/mlx5/odp.c @@ -393,7 +393,7 @@ next_mr: if (nentries) nentries++; } else { - odp = ib_alloc_odp_umem(odp_mr->umem.context, addr, + odp = ib_alloc_odp_umem(odp_mr->per_mm, addr, MLX5_IMR_MTT_SIZE); if (IS_ERR(odp)) { mutex_unlock(&odp_mr->umem_mutex); |