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path: root/drivers/infiniband/hw/ipath/ipath_srq.c
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Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_srq.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_srq.c55
1 files changed, 26 insertions, 29 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_srq.c b/drivers/infiniband/hw/ipath/ipath_srq.c
index 94033503400..03acae66ba8 100644
--- a/drivers/infiniband/hw/ipath/ipath_srq.c
+++ b/drivers/infiniband/hw/ipath/ipath_srq.c
@@ -139,33 +139,24 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
* See ipath_mmap() for details.
*/
if (udata && udata->outlen >= sizeof(__u64)) {
- struct ipath_mmap_info *ip;
- __u64 offset = (__u64) srq->rq.wq;
int err;
+ u32 s = sizeof(struct ipath_rwq) + srq->rq.size * sz;
- err = ib_copy_to_udata(udata, &offset, sizeof(offset));
- if (err) {
- ret = ERR_PTR(err);
+ srq->ip =
+ ipath_create_mmap_info(dev, s,
+ ibpd->uobject->context,
+ srq->rq.wq);
+ if (!srq->ip) {
+ ret = ERR_PTR(-ENOMEM);
goto bail_wq;
}
- /* Allocate info for ipath_mmap(). */
- ip = kmalloc(sizeof(*ip), GFP_KERNEL);
- if (!ip) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_wq;
+ err = ib_copy_to_udata(udata, &srq->ip->offset,
+ sizeof(srq->ip->offset));
+ if (err) {
+ ret = ERR_PTR(err);
+ goto bail_ip;
}
- srq->ip = ip;
- ip->context = ibpd->uobject->context;
- ip->obj = srq->rq.wq;
- kref_init(&ip->ref);
- ip->mmap_cnt = 0;
- ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) +
- srq->rq.size * sz);
- spin_lock_irq(&dev->pending_lock);
- ip->next = dev->pending_mmaps;
- dev->pending_mmaps = ip;
- spin_unlock_irq(&dev->pending_lock);
} else
srq->ip = NULL;
@@ -181,21 +172,27 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
if (dev->n_srqs_allocated == ib_ipath_max_srqs) {
spin_unlock(&dev->n_srqs_lock);
ret = ERR_PTR(-ENOMEM);
- goto bail_wq;
+ goto bail_ip;
}
dev->n_srqs_allocated++;
spin_unlock(&dev->n_srqs_lock);
+ if (srq->ip) {
+ spin_lock_irq(&dev->pending_lock);
+ list_add(&srq->ip->pending_mmaps, &dev->pending_mmaps);
+ spin_unlock_irq(&dev->pending_lock);
+ }
+
ret = &srq->ibsrq;
goto done;
+bail_ip:
+ kfree(srq->ip);
bail_wq:
vfree(srq->rq.wq);
-
bail_srq:
kfree(srq);
-
done:
return ret;
}
@@ -312,13 +309,13 @@ int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
if (srq->ip) {
struct ipath_mmap_info *ip = srq->ip;
struct ipath_ibdev *dev = to_idev(srq->ibsrq.device);
+ u32 s = sizeof(struct ipath_rwq) + size * sz;
- ip->obj = wq;
- ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) +
- size * sz);
+ ipath_update_mmap_info(dev, ip, s, wq);
spin_lock_irq(&dev->pending_lock);
- ip->next = dev->pending_mmaps;
- dev->pending_mmaps = ip;
+ if (list_empty(&ip->pending_mmaps))
+ list_add(&ip->pending_mmaps,
+ &dev->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
}
} else if (attr_mask & IB_SRQ_LIMIT) {