Ian Campbell
2009-Nov-25 14:45 UTC
[Xen-devel] [PATCH] xen: do not unmap grant status on suspend when using v1 grant tables
grstatus is only used/initialised for v2 grant tables.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Steven Smith <steven.smith@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
drivers/xen/grant-table.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 2240adf..068cbd6 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -898,7 +898,8 @@ int gnttab_resume(void)
int gnttab_suspend(void)
{
arch_gnttab_unmap(shared.raw, nr_grant_frames);
- arch_gnttab_unmap(grstatus, nr_status_frames(nr_grant_frames));
+ if (grant_table_version > 1)
+ arch_gnttab_unmap(grstatus, nr_status_frames(nr_grant_frames));
return 0;
}
--
1.5.6.5
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