[PATCH v1 1/1] xen: No need to flush the mapcache for grants

["Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxx>]

From: Stefano Stabellini <stefano.stabellini@xxxxxxx>

On IOREQ_TYPE_INVALIDATE we need to invalidate the mapcache for regular
mappings. Since recently we started reusing the mapcache also to keep
track of grants mappings. However, there is no need to remove grant
mappings on IOREQ_TYPE_INVALIDATE requests, we shouldn't do that. So
remove the function call.

Fixes: 9ecdd4bf08 (xen: mapcache: Add support for grant mappings)
Cc: qemu-stable@xxxxxxxxxx
Reported-by: Olaf Hering <olaf@xxxxxxxxx>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxx>
---
 hw/xen/xen-mapcache.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
index 00bfbcc6fb..698b5c53ed 100644
--- a/hw/xen/xen-mapcache.c
+++ b/hw/xen/xen-mapcache.c
@@ -700,7 +700,6 @@ void xen_invalidate_map_cache(void)
     bdrv_drain_all();
 
     xen_invalidate_map_cache_single(mapcache);
-    xen_invalidate_map_cache_single(mapcache_grants);
 }
 
 static uint8_t *xen_replace_cache_entry_unlocked(MapCache *mc,
-- 
2.43.0