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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2011-05-24 00:06:26 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2011-05-24 00:06:26 -0700
commitb73077eb03f510a84b102fb97640e595a958403c (patch)
tree8b639000418e2756bf6baece4e00e07d2534bccc /drivers/xen/grant-table.c
parent28350e330cfab46b60a1dbf763b678d859f9f3d9 (diff)
parent9d2e173644bb5c42ff1b280fbdda3f195a7cf1f7 (diff)
Merge branch 'next' into for-linus
Diffstat (limited to 'drivers/xen/grant-table.c')
-rw-r--r--drivers/xen/grant-table.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 9ef54ebc1194..3745a318defc 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -458,7 +458,14 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
if (ret)
return ret;
+ if (xen_feature(XENFEAT_auto_translated_physmap))
+ return ret;
+
for (i = 0; i < count; i++) {
+ /* Do not add to override if the map failed. */
+ if (map_ops[i].status)
+ continue;
+
/* m2p override only supported for GNTMAP_contains_pte mappings */
if (!(map_ops[i].flags & GNTMAP_contains_pte))
continue;
@@ -483,6 +490,9 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
if (ret)
return ret;
+ if (xen_feature(XENFEAT_auto_translated_physmap))
+ return ret;
+
for (i = 0; i < count; i++) {
ret = m2p_remove_override(pages[i]);
if (ret)