From 5f78ba46c93920b6b9cb2ab6f8462f078370c66f Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 20 Feb 2013 13:16:17 +1100 Subject: [PATCH] IB/cxgb4: convert to idr_alloc() Convert to the much saner new idr interface. Only compile tested. Signed-off-by: Tejun Heo Reviewed-by: Steve Wise Signed-off-by: Andrew Morton --- drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 27 +++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 94a3b3c47a8a..3c9dee2b97cc 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -260,20 +260,21 @@ static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr, void *handle, u32 id, int lock) { int ret; - int newid; - do { - if (!idr_pre_get(idr, lock ? GFP_KERNEL : GFP_ATOMIC)) - return -ENOMEM; - if (lock) - spin_lock_irq(&rhp->lock); - ret = idr_get_new_above(idr, handle, id, &newid); - BUG_ON(!ret && newid != id); - if (lock) - spin_unlock_irq(&rhp->lock); - } while (ret == -EAGAIN); - - return ret; + if (lock) { + idr_preload(GFP_KERNEL); + spin_lock_irq(&rhp->lock); + } + + ret = idr_alloc(idr, handle, id, id + 1, GFP_ATOMIC); + + if (lock) { + spin_unlock_irq(&rhp->lock); + idr_preload_end(); + } + + BUG_ON(ret == -ENOSPC); + return ret < 0 ? ret : 0; } static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr, -- 2.39.5