block: add bdrv_set_enable_write_cache

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

diff --git a/block.c b/block.c
index 9bff401200aefce8bdc60f44e53f80f09123a4e5..e4396a6c462a6f1f3d45579b691e6dbc231cc5de 100644 (file)
--- a/block.c
+++ b/block.c
@@ -2380,6 +2380,11 @@ int bdrv_enable_write_cache(BlockDriverState *bs)
     return bs->enable_write_cache;
 }
 
+void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce)
+{
+    bs->enable_write_cache = wce;
+}
+
 int bdrv_is_encrypted(BlockDriverState *bs)
 {
     if (bs->backing_hd && bs->backing_hd->encrypted)

diff --git a/block.h b/block.h
index 574981d3125a9184a8b1ae2d3e673d32007ae2bb..43bfd998ebee90346c94d3cd1af8029a9407da56 100644 (file)
--- a/block.h
+++ b/block.h
@@ -291,6 +291,7 @@ BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read);
 int bdrv_is_read_only(BlockDriverState *bs);
 int bdrv_is_sg(BlockDriverState *bs);
 int bdrv_enable_write_cache(BlockDriverState *bs);
+void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce);
 int bdrv_is_inserted(BlockDriverState *bs);
 int bdrv_media_changed(BlockDriverState *bs);
 void bdrv_lock_medium(BlockDriverState *bs, bool locked);