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authorJeff Layton <jlayton@redhat.com>2013-04-29 16:21:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 18:28:41 -0700
commitf2d9db877fdfe37b54428880429cf01f68718aad (patch)
treeb6c13a80f0de49fb29b0c7eb5f5f83ff1ea47d61
parentc027e44677e139d68197f25688f0c58291b26c90 (diff)
downloadlinux-f2d9db877fdfe37b54428880429cf01f68718aad.tar.gz
drivers/infiniband/hw/mlx4: convert to using idr_alloc_cyclic()
Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: Tejun Heo <tj@kernel.org> Cc: Jack Morgenstein <jackm@dev.mellanox.co.il> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Roland Dreier <roland@purestorage.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/infiniband/hw/mlx4/cm.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c
index add98d01476..d1f5f1dd77b 100644
--- a/drivers/infiniband/hw/mlx4/cm.c
+++ b/drivers/infiniband/hw/mlx4/cm.c
@@ -204,7 +204,6 @@ static struct id_map_entry *
id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id)
{
int ret;
- static int next_id;
struct id_map_entry *ent;
struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
@@ -223,9 +222,8 @@ id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id)
idr_preload(GFP_KERNEL);
spin_lock(&to_mdev(ibdev)->sriov.id_map_lock);
- ret = idr_alloc(&sriov->pv_id_table, ent, next_id, 0, GFP_NOWAIT);
+ ret = idr_alloc_cyclic(&sriov->pv_id_table, ent, 0, 0, GFP_NOWAIT);
if (ret >= 0) {
- next_id = max(ret + 1, 0);
ent->pv_cm_id = (u32)ret;
sl_id_map_add(ibdev, ent);
list_add_tail(&ent->list, &sriov->cm_list);