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IB/ehca: Change idr spinlocks into rwlocks

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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>
This commit is contained in:
Joachim Fenkes
2007-07-09 15:31:10 +02:00
committed by Roland Dreier
parent 28db6beb42
commit 26ed687fdd
6 changed files with 28 additions and 32 deletions
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4
drivers/infiniband/hw/ehca/ehca_main.c
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@@ -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);