diff options
| author | Tejun Heo <tj@kernel.org> | 2013-02-07 12:31:40 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-13 19:03:31 +1100 |
| commit | 4d21f8013659b338558bb20e89ddcfa1b6410686 (patch) | |
| tree | 8f49be5f3ba92abd2404371ad8f78edad54ee247 /drivers | |
| parent | 9f904209aea333c6b1b56b7fdf21594794f9ac90 (diff) | |
IB/cxgb4: convert to idr_alloc()
Convert to the much saner new idr interface.
Only compile tested.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 9c1644fb0259..7f862da54e8e 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, |