diff options
Diffstat (limited to 'net/rds/ib_rdma.c')
| -rw-r--r-- | net/rds/ib_rdma.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c index 4ba01b9ffd4..64b5ede037c 100644 --- a/net/rds/ib_rdma.c +++ b/net/rds/ib_rdma.c @@ -87,6 +87,7 @@ static struct rds_ib_device *rds_ib_get_device(__be32 ipaddr) rcu_read_lock(); list_for_each_entry_rcu(i_ipaddr, &rds_ibdev->ipaddr_list, list) { if (i_ipaddr->ipaddr == ipaddr) { + atomic_inc(&rds_ibdev->refcount); rcu_read_unlock(); return rds_ibdev; } @@ -141,8 +142,10 @@ int rds_ib_update_ipaddr(struct rds_ib_device *rds_ibdev, __be32 ipaddr) struct rds_ib_device *rds_ibdev_old; rds_ibdev_old = rds_ib_get_device(ipaddr); - if (rds_ibdev_old) + if (rds_ibdev_old) { rds_ib_remove_ipaddr(rds_ibdev_old, ipaddr); + rds_ib_dev_put(rds_ibdev_old); + } return rds_ib_add_ipaddr(rds_ibdev, ipaddr); } @@ -163,6 +166,7 @@ void rds_ib_add_conn(struct rds_ib_device *rds_ibdev, struct rds_connection *con spin_unlock_irq(&ib_nodev_conns_lock); ic->rds_ibdev = rds_ibdev; + atomic_inc(&rds_ibdev->refcount); } void rds_ib_remove_conn(struct rds_ib_device *rds_ibdev, struct rds_connection *conn) @@ -182,6 +186,7 @@ void rds_ib_remove_conn(struct rds_ib_device *rds_ibdev, struct rds_connection * spin_unlock(&ib_nodev_conns_lock); ic->rds_ibdev = NULL; + rds_ib_dev_put(rds_ibdev); } void __rds_ib_destroy_conns(struct list_head *list, spinlock_t *list_lock) @@ -240,7 +245,7 @@ void rds_ib_get_mr_info(struct rds_ib_device *rds_ibdev, struct rds_info_rdma_co void rds_ib_destroy_mr_pool(struct rds_ib_mr_pool *pool) { - flush_workqueue(rds_wq); + cancel_work_sync(&pool->flush_worker); rds_ib_flush_mr_pool(pool, 1); WARN_ON(atomic_read(&pool->item_count)); WARN_ON(atomic_read(&pool->free_pinned)); @@ -597,6 +602,8 @@ void rds_ib_free_mr(void *trans_private, int invalidate) queue_work(rds_wq, &pool->flush_worker); } } + + rds_ib_dev_put(rds_ibdev); } void rds_ib_flush_mrs(void) @@ -640,6 +647,7 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents, printk(KERN_WARNING "RDS/IB: map_fmr failed (errno=%d)\n", ret); ibmr->device = rds_ibdev; + rds_ibdev = NULL; out: if (ret) { @@ -647,5 +655,7 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents, rds_ib_free_mr(ibmr, 0); ibmr = ERR_PTR(ret); } + if (rds_ibdev) + rds_ib_dev_put(rds_ibdev); return ibmr; } |