Formats are entirely in charge of flushes for metadata writes. For
guest-initiated writes, a writethrough cache is faked in the block layer.
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
block.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block.c b/block.c
index 3db7150..b3d0054 100644
--- a/block.c
+++ b/block.c
@@ -661,7 +661,7 @@ static int bdrv_open_common(BlockDriverState *bs, const
char *filename,
if (drv->bdrv_file_open) {
ret = drv->bdrv_file_open(bs, filename, open_flags);
} else {
- ret = bdrv_file_open(&bs->file, filename, open_flags);
+ ret = bdrv_file_open(&bs->file, filename, open_flags &
~BDRV_O_CACHE_WB);
if (ret >= 0) {
ret = drv->bdrv_open(bs, open_flags);
}
--
1.7.10.1
