IB/ehca: Change idr spinlocks into rwlocks

[linux-2.6-omap-h63xx.git] / drivers / infiniband / hw / ehca / ehca_uverbs.c

diff --git a/drivers/infiniband/hw/ehca/ehca_uverbs.c b/drivers/infiniband/hw/ehca/ehca_uverbs.c
index d8fe37d56f1a5e86d9252507d73b533ef35608a7..3031b3bb56f9bc6b7ad3eb24d58d2b6d21f138ac 100644 (file)
--- a/drivers/infiniband/hw/ehca/ehca_uverbs.c
+++ b/drivers/infiniband/hw/ehca/ehca_uverbs.c
@@ -253,7 +253,6 @@ int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
        u32 rsrc_type = (fileoffset >> 24) & 0xF; /* sq,rq,cmnd_window */
        u32 cur_pid = current->tgid;
        u32 ret;
-       unsigned long flags;
        struct ehca_cq *cq;
        struct ehca_qp *qp;
        struct ehca_pd *pd;
@@ -261,9 +260,9 @@ int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 
        switch (q_type) {
        case  1: /* CQ */
-               spin_lock_irqsave(&ehca_cq_idr_lock, flags);
+               read_lock(&ehca_cq_idr_lock);
                cq = idr_find(&ehca_cq_idr, idr_handle);
-               spin_unlock_irqrestore(&ehca_cq_idr_lock, flags);
+               read_unlock(&ehca_cq_idr_lock);
 
                /* make sure this mmap really belongs to the authorized user */
                if (!cq)
@@ -289,9 +288,9 @@ int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
                break;
 
        case 2: /* QP */
-               spin_lock_irqsave(&ehca_qp_idr_lock, flags);
+               read_lock(&ehca_qp_idr_lock);
                qp = idr_find(&ehca_qp_idr, idr_handle);
-               spin_unlock_irqrestore(&ehca_qp_idr_lock, flags);
+               read_unlock(&ehca_qp_idr_lock);
 
                /* make sure this mmap really belongs to the authorized user */
                if (!qp)