diff options
Diffstat (limited to 'drivers/infiniband/core/restrack.c')
| -rw-r--r-- | drivers/infiniband/core/restrack.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c index 3b7fa0ccaa08..06d8657ce583 100644 --- a/drivers/infiniband/core/restrack.c +++ b/drivers/infiniband/core/restrack.c @@ -50,8 +50,7 @@ void rdma_restrack_clean(struct rdma_restrack_root *res) dev = container_of(res, struct ib_device, res); pr_err("restrack: %s", CUT_HERE); - pr_err("restrack: BUG: RESTRACK detected leak of resources on %s\n", - dev->name); + dev_err(&dev->dev, "BUG: RESTRACK detected leak of resources\n"); hash_for_each(res->hash, bkt, e, node) { if (rdma_is_kernel_res(e)) { owner = e->kern_name; @@ -156,6 +155,21 @@ static bool res_is_user(struct rdma_restrack_entry *res) } } +void rdma_restrack_set_task(struct rdma_restrack_entry *res, + const char *caller) +{ + if (caller) { + res->kern_name = caller; + return; + } + + if (res->task) + put_task_struct(res->task); + get_task_struct(current); + res->task = current; +} +EXPORT_SYMBOL(rdma_restrack_set_task); + void rdma_restrack_add(struct rdma_restrack_entry *res) { struct ib_device *dev = res_to_dev(res); @@ -168,7 +182,7 @@ void rdma_restrack_add(struct rdma_restrack_entry *res) if (res_is_user(res)) { if (!res->task) - rdma_restrack_set_task(res, current); + rdma_restrack_set_task(res, NULL); res->kern_name = NULL; } else { set_kern_name(res); @@ -209,7 +223,7 @@ void rdma_restrack_del(struct rdma_restrack_entry *res) struct ib_device *dev; if (!res->valid) - return; + goto out; dev = res_to_dev(res); if (!dev) @@ -222,8 +236,12 @@ void rdma_restrack_del(struct rdma_restrack_entry *res) down_write(&dev->res.rwsem); hash_del(&res->node); res->valid = false; - if (res->task) - put_task_struct(res->task); up_write(&dev->res.rwsem); + +out: + if (res->task) { + put_task_struct(res->task); + res->task = NULL; + } } EXPORT_SYMBOL(rdma_restrack_del); |