diff options
| author | Dave Airlie <airlied@redhat.com> | 2016-12-05 17:11:48 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-12-05 17:11:48 +1000 |
| commit | f03ee46be9401e3434f52bb15e92d1e640f76438 (patch) | |
| tree | f0a1819bd3e44902578b80e1a03d1dde1c6099b8 /drivers/infiniband/hw/mlx5/mr.c | |
| parent | 0d5320fc194128a1a584a7e91a606cb3af2ded80 (diff) | |
| parent | 3e5de27e940d00d8d504dfb96625fb654f641509 (diff) | |
| download | linux-f03ee46be9401e3434f52bb15e92d1e640f76438.tar.bz2 | |
Backmerge tag 'v4.9-rc8' into drm-next
Linux 4.9-rc8
Daniel requested this so we could apply some follow on fixes cleanly to -next.
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mr.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mr.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index d4ad672b905b..4e9012463c37 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -610,6 +610,7 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev) int err; int i; + mutex_init(&dev->slow_path_mutex); cache->wq = alloc_ordered_workqueue("mkey_cache", WQ_MEM_RECLAIM); if (!cache->wq) { mlx5_ib_warn(dev, "failed to create work queue\n"); @@ -1182,9 +1183,12 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, goto error; } - if (!mr) + if (!mr) { + mutex_lock(&dev->slow_path_mutex); mr = reg_create(NULL, pd, virt_addr, length, umem, ncont, page_shift, access_flags); + mutex_unlock(&dev->slow_path_mutex); + } if (IS_ERR(mr)) { err = PTR_ERR(mr); |