summaryrefslogtreecommitdiff
path: root/net/rds/iw_recv.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/rds/iw_recv.c')
-rw-r--r--net/rds/iw_recv.c7
1 files changed, 4 insertions, 3 deletions
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);
}