File 24138-xenpaging_munmap_all_pages_after_page-in.... of Package xen

Overview Repositories Revisions Requests Users Attributes Meta

File 24138-xenpaging_munmap_all_pages_after_page-in.patch of Package xen (Revision 43b25d1f7f5589dd235134f645453186)

Currently displaying revision 43b25d1f7f5589dd235134f645453186 , Show latest

changeset:   24138:e2cc58b85b6e
user:        Olaf Hering <olaf@aepfle.de>
date:        Mon Nov 14 17:49:14 2011 +0000
files:       tools/xenpaging/pagein.c
description:
xenpaging: munmap all pages after page-in

Do munmap() on all mapped pages, not just the first one.  Without this
change the gfns backing the remaining pages can not be paged out again
because the page count does not go down to 1. This change was missing
from changeset 23827:d1d6abc1db20.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>

---
 tools/xenpaging/pagein.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: xen-4.1.2-testing/tools/xenpaging/pagein.c
===================================================================
--- xen-4.1.2-testing.orig/tools/xenpaging/pagein.c
+++ xen-4.1.2-testing/tools/xenpaging/pagein.c
@@ -44,7 +44,7 @@ static void *page_in(void *arg)
         /* Ignore errors */
         page = xc_map_foreign_pages(pia->xch, pia->dom, PROT_READ, gfns, num);
         if (page)
-            munmap(page, PAGE_SIZE);
+            munmap(page, PAGE_SIZE * num);
     }
     page_in_possible = 0;
     pthread_exit(NULL);

Places

File 24138-xenpaging_munmap_all_pages_after_page-in.patch of Package xen (Revision 43b25d1f7f5589dd235134f645453186)

Places