xen: use generic functions instead of xen_{alloc, free}_vm_area()

Replace calls to the Xen-specific xen_alloc_vm_area() and
xen_free_vm_area() functions with the generic equivalent
(alloc_vm_area() and free_vm_area()).

On x86, these were identical already.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/arch/ia64/include/asm/xen/grant_table.h b/arch/ia64/include/asm/xen/grant_table.h
deleted file mode 100644 (file)
index 2b1fae0..0000000
--- a/arch/ia64/include/asm/xen/grant_table.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/******************************************************************************
- * arch/ia64/include/asm/xen/grant_table.h
- *
- * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
- *                    VA Linux Systems Japan K.K.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-#ifndef _ASM_IA64_XEN_GRANT_TABLE_H
-#define _ASM_IA64_XEN_GRANT_TABLE_H
-
-struct vm_struct *xen_alloc_vm_area(unsigned long size);
-void xen_free_vm_area(struct vm_struct *area);
-
-#endif /* _ASM_IA64_XEN_GRANT_TABLE_H */

diff --git a/arch/ia64/xen/grant-table.c b/arch/ia64/xen/grant-table.c
index 48cca37..c182813 100644 (file)
--- a/arch/ia64/xen/grant-table.c
+++ b/arch/ia64/xen/grant-table.c
@@ -31,68 +31,6 @@
 
 #include <asm/xen/hypervisor.h>
 
-struct vm_struct *xen_alloc_vm_area(unsigned long size)
-{
-       int order;
-       unsigned long virt;
-       unsigned long nr_pages;
-       struct vm_struct *area;
-
-       order = get_order(size);
-       virt = __get_free_pages(GFP_KERNEL, order);
-       if (virt == 0)
-               goto err0;
-       nr_pages = 1 << order;
-       scrub_pages(virt, nr_pages);
-
-       area = kmalloc(sizeof(*area), GFP_KERNEL);
-       if (area == NULL)
-               goto err1;
-
-       area->flags = VM_IOREMAP;
-       area->addr = (void *)virt;
-       area->size = size;
-       area->pages = NULL;
-       area->nr_pages = nr_pages;
-       area->phys_addr = 0;    /* xenbus_map_ring_valloc uses this field!  */
-
-       return area;
-
-err1:
-       free_pages(virt, order);
-err0:
-       return NULL;
-}
-EXPORT_SYMBOL_GPL(xen_alloc_vm_area);
-
-void xen_free_vm_area(struct vm_struct *area)
-{
-       unsigned int order = get_order(area->size);
-       unsigned long i;
-       unsigned long phys_addr = __pa(area->addr);
-
-       /* This area is used for foreign page mappping.
-        * So underlying machine page may not be assigned. */
-       for (i = 0; i < (1 << order); i++) {
-               unsigned long ret;
-               unsigned long gpfn = (phys_addr >> PAGE_SHIFT) + i;
-               struct xen_memory_reservation reservation = {
-                       .nr_extents   = 1,
-                       .address_bits = 0,
-                       .extent_order = 0,
-                       .domid        = DOMID_SELF
-               };
-               set_xen_guest_handle(reservation.extent_start, &gpfn);
-               ret = HYPERVISOR_memory_op(XENMEM_populate_physmap,
-                                          &reservation);
-               BUG_ON(ret != 1);
-       }
-       free_pages((unsigned long)area->addr, order);
-       kfree(area);
-}
-EXPORT_SYMBOL_GPL(xen_free_vm_area);
-
-
 /****************************************************************************
  * grant table hack
  * cmd: GNTTABOP_xxx

diff --git a/arch/x86/include/asm/xen/grant_table.h b/arch/x86/include/asm/xen/grant_table.h
deleted file mode 100644 (file)
index fdbbb45..0000000
--- a/arch/x86/include/asm/xen/grant_table.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _ASM_X86_XEN_GRANT_TABLE_H
-#define _ASM_X86_XEN_GRANT_TABLE_H
-
-#define xen_alloc_vm_area(size)        alloc_vm_area(size)
-#define xen_free_vm_area(area) free_vm_area(area)
-
-#endif /* _ASM_X86_XEN_GRANT_TABLE_H */

diff --git a/arch/x86/xen/grant-table.c b/arch/x86/xen/grant-table.c
index 49ba9b5..6bbfd7a 100644 (file)
--- a/arch/x86/xen/grant-table.c
+++ b/arch/x86/xen/grant-table.c
@@ -71,7 +71,7 @@ int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
 
        if (shared == NULL) {
                struct vm_struct *area =
-                       xen_alloc_vm_area(PAGE_SIZE * max_nr_gframes);
+                       alloc_vm_area(PAGE_SIZE * max_nr_gframes);
                BUG_ON(area == NULL);
                shared = area->addr;
                *__shared = shared;

diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index cdacf92..229d3ad 100644 (file)
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -443,7 +443,7 @@ int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr)
 
        *vaddr = NULL;
 
-       area = xen_alloc_vm_area(PAGE_SIZE);
+       area = alloc_vm_area(PAGE_SIZE);
        if (!area)
                return -ENOMEM;
 
@@ -453,7 +453,7 @@ int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr)
                BUG();
 
        if (op.status != GNTST_okay) {
-               xen_free_vm_area(area);
+               free_vm_area(area);
                xenbus_dev_fatal(dev, op.status,
                                 "mapping in shared page %d from domain %d",
                                 gnt_ref, dev->otherend_id);
@@ -552,7 +552,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
                BUG();
 
        if (op.status == GNTST_okay)
-               xen_free_vm_area(area);
+               free_vm_area(area);
        else
                xenbus_dev_error(dev, op.status,
                                 "unmapping page at handle %d error %d",

diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index b1fab6b..8a8bb76 100644 (file)
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -43,7 +43,6 @@
 #include <xen/interface/grant_table.h>
 
 #include <asm/xen/hypervisor.h>
-#include <asm/xen/grant_table.h>
 
 #include <xen/features.h>