diff options
| author | Joachim Fenkes <fenkes@de.ibm.com> | 2007-07-09 15:31:10 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-07-09 20:12:27 -0700 |
| commit | 26ed687fdd541c2542b79dcd75fb2c82eb36f189 (patch) | |
| tree | 45d5ad42b6b9259f273cc274d0fbf18a6d169e91 /drivers/infiniband/hw/ehca/ehca_main.c | |
| parent | 28db6beb420c756c61dd44d9f2786a0677159e74 (diff) | |
| download | lwn-26ed687fdd541c2542b79dcd75fb2c82eb36f189.tar.gz lwn-26ed687fdd541c2542b79dcd75fb2c82eb36f189.zip | |
IB/ehca: Change idr spinlocks into rwlocks
This eliminates lock contention among IRQs as well as the need to
disable IRQs around idr_find, because there are no IRQ writers.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ehca/ehca_main.c')
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c index 32396b203f14..28ba2dd24216 100644 --- a/drivers/infiniband/hw/ehca/ehca_main.c +++ b/drivers/infiniband/hw/ehca/ehca_main.c @@ -96,8 +96,8 @@ MODULE_PARM_DESC(static_rate, MODULE_PARM_DESC(scaling_code, "set scaling code (0: disabled/default, 1: enabled)"); -DEFINE_SPINLOCK(ehca_qp_idr_lock); -DEFINE_SPINLOCK(ehca_cq_idr_lock); +DEFINE_RWLOCK(ehca_qp_idr_lock); +DEFINE_RWLOCK(ehca_cq_idr_lock); DEFINE_IDR(ehca_qp_idr); DEFINE_IDR(ehca_cq_idr); |