IB/ehca: Fall back to vmalloc() for big allocations

[karo-tx-linux.git] / drivers / infiniband / hw / ehca / ipz_pt_fn.c

diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/infiniband/hw/ehca/ipz_pt_fn.c
index a2605593ae797c1a87e8f1aea87ab2d8be248a50..1227c593627a62b5a1e27a237a63175c4038dfe0 100644 (file)
--- a/drivers/infiniband/hw/ehca/ipz_pt_fn.c
+++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.c
@@ -222,8 +222,11 @@ int ipz_queue_ctor(struct ehca_pd *pd, struct ipz_queue *queue,
        /* allocate queue page pointers */
        queue->queue_pages = kmalloc(nr_of_pages * sizeof(void *), GFP_KERNEL);
        if (!queue->queue_pages) {
-               ehca_gen_err("Couldn't allocate queue page list");
-               return 0;
+               queue->queue_pages = vmalloc(nr_of_pages * sizeof(void *));
+               if (!queue->queue_pages) {
+                       ehca_gen_err("Couldn't allocate queue page list");
+                       return 0;
+               }
        }
        memset(queue->queue_pages, 0, nr_of_pages * sizeof(void *));
 
@@ -240,7 +243,10 @@ int ipz_queue_ctor(struct ehca_pd *pd, struct ipz_queue *queue,
 ipz_queue_ctor_exit0:
        ehca_gen_err("Couldn't alloc pages queue=%p "
                 "nr_of_pages=%x",  queue, nr_of_pages);
-       kfree(queue->queue_pages);
+       if (is_vmalloc_addr(queue->queue_pages))
+               vfree(queue->queue_pages);
+       else
+               kfree(queue->queue_pages);
 
        return 0;
 }
@@ -262,7 +268,10 @@ int ipz_queue_dtor(struct ehca_pd *pd, struct ipz_queue *queue)
                        free_page((unsigned long)queue->queue_pages[i]);
        }
 
-       kfree(queue->queue_pages);
+       if (is_vmalloc_addr(queue->queue_pages))
+               vfree(queue->queue_pages);
+       else
+               kfree(queue->queue_pages);
 
        return 1;
 }