diff options
Diffstat (limited to 'drivers/infiniband/hw/amso1100/c2_qp.c')
| -rw-r--r-- | drivers/infiniband/hw/amso1100/c2_qp.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/amso1100/c2_qp.c b/drivers/infiniband/hw/amso1100/c2_qp.c index 0d7b6f23caf..86708dee58b 100644 --- a/drivers/infiniband/hw/amso1100/c2_qp.c +++ b/drivers/infiniband/hw/amso1100/c2_qp.c @@ -382,14 +382,16 @@ static int c2_alloc_qpn(struct c2_dev *c2dev, struct c2_qp *qp) { int ret; - do { - spin_lock_irq(&c2dev->qp_table.lock); - ret = idr_get_new_above(&c2dev->qp_table.idr, qp, - c2dev->qp_table.last++, &qp->qpn); - spin_unlock_irq(&c2dev->qp_table.lock); - } while ((ret == -EAGAIN) && - idr_pre_get(&c2dev->qp_table.idr, GFP_KERNEL)); - return ret; + idr_preload(GFP_KERNEL); + spin_lock_irq(&c2dev->qp_table.lock); + + ret = idr_alloc_cyclic(&c2dev->qp_table.idr, qp, 0, 0, GFP_NOWAIT); + if (ret >= 0) + qp->qpn = ret; + + spin_unlock_irq(&c2dev->qp_table.lock); + idr_preload_end(); + return ret < 0 ? ret : 0; } static void c2_free_qpn(struct c2_dev *c2dev, int qpn) @@ -1010,13 +1012,13 @@ out: return err; } -void __devinit c2_init_qp_table(struct c2_dev *c2dev) +void c2_init_qp_table(struct c2_dev *c2dev) { spin_lock_init(&c2dev->qp_table.lock); idr_init(&c2dev->qp_table.idr); } -void __devexit c2_cleanup_qp_table(struct c2_dev *c2dev) +void c2_cleanup_qp_table(struct c2_dev *c2dev) { idr_destroy(&c2dev->qp_table.idr); } |