diff options
| -rw-r--r-- | net/rds/ib_recv.c | 7 | ||||
| -rw-r--r-- | net/rds/iw_recv.c | 7 |
2 files changed, 8 insertions, 6 deletions
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c index cd7a6cfcab03..2f009d391c29 100644 --- a/net/rds/ib_recv.c +++ b/net/rds/ib_recv.c @@ -143,15 +143,16 @@ static int rds_ib_recv_refill_one(struct rds_connection *conn, int ret = -ENOMEM; if (recv->r_ibinc == NULL) { - if (atomic_read(&rds_ib_allocation) >= rds_ib_sysctl_max_recv_allocation) { + if (!atomic_add_unless(&rds_ib_allocation, 1, rds_ib_sysctl_max_recv_allocation)) { rds_ib_stats_inc(s_ib_rx_alloc_limit); goto out; } recv->r_ibinc = kmem_cache_alloc(rds_ib_incoming_slab, kptr_gfp); - if (recv->r_ibinc == NULL) + if (recv->r_ibinc == NULL) { + atomic_dec(&rds_ib_allocation); goto out; - atomic_inc(&rds_ib_allocation); + } INIT_LIST_HEAD(&recv->r_ibinc->ii_frags); rds_inc_init(&recv->r_ibinc->ii_inc, conn, conn->c_faddr); } diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c index 8683f5f66c4b..9f98150af19f 100644 --- a/net/rds/iw_recv.c +++ b/net/rds/iw_recv.c @@ -143,15 +143,16 @@ static int rds_iw_recv_refill_one(struct rds_connection *conn, int ret = -ENOMEM; if (recv->r_iwinc == NULL) { - if (atomic_read(&rds_iw_allocation) >= rds_iw_sysctl_max_recv_allocation) { + if (!atomic_add_unless(&rds_iw_allocation, 1, rds_iw_sysctl_max_recv_allocation)) { rds_iw_stats_inc(s_iw_rx_alloc_limit); goto out; } recv->r_iwinc = kmem_cache_alloc(rds_iw_incoming_slab, kptr_gfp); - if (recv->r_iwinc == NULL) + if (recv->r_iwinc == NULL) { + atomic_dec(&rds_iw_allocation); goto out; - atomic_inc(&rds_iw_allocation); + } INIT_LIST_HEAD(&recv->r_iwinc->ii_frags); rds_inc_init(&recv->r_iwinc->ii_inc, conn, conn->c_faddr); } |