These changes are a raw update to a vanilla kernel 4.1.10, with the

[kvmfornfv.git] / kernel / drivers / infiniband / hw / qib / qib_verbs.c

diff --git a/kernel/drivers/infiniband/hw/qib/qib_verbs.c b/kernel/drivers/infiniband/hw/qib/qib_verbs.c
index 4a35998..9dd5d9a 100644 (file)
--- a/kernel/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/kernel/drivers/infiniband/hw/qib/qib_verbs.c
@@ -40,6 +40,7 @@
 #include <linux/rculist.h>
 #include <linux/mm.h>
 #include <linux/random.h>
+#include <linux/vmalloc.h>
 
 #include "qib.h"
 #include "qib_common.h"
@@ -2089,10 +2090,16 @@ int qib_register_ib_device(struct qib_devdata *dd)
         * the LKEY).  The remaining bits act as a generation number or tag.
         */
        spin_lock_init(&dev->lk_table.lock);
+       /* insure generation is at least 4 bits see keys.c */
+       if (ib_qib_lkey_table_size > MAX_LKEY_TABLE_BITS) {
+               qib_dev_warn(dd, "lkey bits %u too large, reduced to %u\n",
+                       ib_qib_lkey_table_size, MAX_LKEY_TABLE_BITS);
+               ib_qib_lkey_table_size = MAX_LKEY_TABLE_BITS;
+       }
        dev->lk_table.max = 1 << ib_qib_lkey_table_size;
        lk_tab_size = dev->lk_table.max * sizeof(*dev->lk_table.table);
        dev->lk_table.table = (struct qib_mregion __rcu **)
-               __get_free_pages(GFP_KERNEL, get_order(lk_tab_size));
+               vmalloc(lk_tab_size);
        if (dev->lk_table.table == NULL) {
                ret = -ENOMEM;
                goto err_lk;
@@ -2265,7 +2272,7 @@ err_tx:
                                        sizeof(struct qib_pio_header),
                                  dev->pio_hdrs, dev->pio_hdrs_phys);
 err_hdrs:
-       free_pages((unsigned long) dev->lk_table.table, get_order(lk_tab_size));
+       vfree(dev->lk_table.table);
 err_lk:
        kfree(dev->qp_table);
 err_qpt:
@@ -2319,8 +2326,7 @@ void qib_unregister_ib_device(struct qib_devdata *dd)
                                        sizeof(struct qib_pio_header),
                                  dev->pio_hdrs, dev->pio_hdrs_phys);
        lk_tab_size = dev->lk_table.max * sizeof(*dev->lk_table.table);
-       free_pages((unsigned long) dev->lk_table.table,
-                  get_order(lk_tab_size));
+       vfree(dev->lk_table.table);
        kfree(dev->qp_table);
 }