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authorJuergen Gross <jgross@suse.com>2015-09-04 14:05:51 +0200
committerDavid Vrabel <david.vrabel@citrix.com>2015-09-08 16:28:06 +0100
commit626d7508664c4bc8e67f496da4387ecd0c410b8c (patch)
treeaa6f8868b6e18950a16dd8225c7e95a429a0dca9 /drivers
parentcb9e444b5aaa900bb4310da411315b6947c53e37 (diff)
xen: switch extra memory accounting to use pfns
Instead of using physical addresses for accounting of extra memory areas available for ballooning switch to pfns as this is much less error prone regarding partial pages. Reported-by: Roger Pau Monné <roger.pau@citrix.com> Tested-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/xen/balloon.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index bf4a23c7c591..1fa633b2d556 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -638,9 +638,9 @@ static int __init balloon_init(void)
* regions (see arch/x86/xen/setup.c).
*/
for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++)
- if (xen_extra_mem[i].size)
- balloon_add_region(PFN_UP(xen_extra_mem[i].start),
- PFN_DOWN(xen_extra_mem[i].size));
+ if (xen_extra_mem[i].n_pfns)
+ balloon_add_region(xen_extra_mem[i].start_pfn,
+ xen_extra_mem[i].n_pfns);
return 0;
}