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

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File 24138-xenpaging_munmap_all_pages_after_page-in.patch of Package xen (Revision 3592d3bf46f3407a257b8caa53f8248d)

Currently displaying revision 3592d3bf46f3407a257b8caa53f8248d , 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);

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File 24138-xenpaging_munmap_all_pages_after_page-in.patch of Package xen (Revision 3592d3bf46f3407a257b8caa53f8248d)

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