# HG changeset patch
# User Olaf Hering <olaf@xxxxxxxxx>
# Date 1307437218 -7200
# Node ID 48244bc8156ff8eca82ce9ab811516aae3d3fe32
# Parent f5203dded3b13a33716ae50ef12d766c394f81f5
xenpaging: pass integer to xenpaging_populate_page
Pass gfn as integer to xenpaging_populate_page(). xc_map_foreign_pages()
takes a pointer to a list of gfns, but its a const pointer. So writing
the value back to the caller is not needed.
Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
diff -r f5203dded3b1 -r 48244bc8156f tools/xenpaging/xenpaging.c
--- a/tools/xenpaging/xenpaging.c Tue Jun 07 11:00:17 2011 +0200
+++ b/tools/xenpaging/xenpaging.c Tue Jun 07 11:00:18 2011 +0200
@@ -421,27 +421,24 @@ static int xenpaging_resume_page(xenpagi
}
static int xenpaging_populate_page(xenpaging_t *paging,
- uint64_t *gfn, int fd, int i)
+ xen_pfn_t gfn, int fd, int i)
{
xc_interface *xch = paging->xc_handle;
- unsigned long _gfn;
void *page;
int ret;
unsigned char oom = 0;
- _gfn = *gfn;
- DPRINTF("populate_page < gfn %lx pageslot %d\n", _gfn, i);
+ DPRINTF("populate_page < gfn %"PRI_xen_pfn" pageslot %d\n", gfn, i);
do
{
/* Tell Xen to allocate a page for the domain */
- ret = xc_mem_paging_prep(xch, paging->mem_event.domain_id,
- _gfn);
+ ret = xc_mem_paging_prep(xch, paging->mem_event.domain_id, gfn);
if ( ret != 0 )
{
if ( errno == ENOMEM )
{
if ( oom++ == 0 )
- DPRINTF("ENOMEM while preparing gfn %lx\n", _gfn);
+ DPRINTF("ENOMEM while preparing gfn %"PRI_xen_pfn"\n",
gfn);
sleep(1);
continue;
}
@@ -454,8 +451,7 @@ static int xenpaging_populate_page(xenpa
/* Map page */
ret = -EFAULT;
page = xc_map_foreign_pages(xch, paging->mem_event.domain_id,
- PROT_READ | PROT_WRITE, &_gfn, 1);
- *gfn = _gfn;
+ PROT_READ | PROT_WRITE, &gfn, 1);
if ( page == NULL )
{
ERROR("Error mapping page: page is null");
@@ -630,7 +626,7 @@ int main(int argc, char *argv[])
else
{
/* Populate the page */
- rc = xenpaging_populate_page(paging, &req.gfn, fd, i);
+ rc = xenpaging_populate_page(paging, req.gfn, fd, i);
if ( rc != 0 )
{
ERROR("Error populating page");
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