From c9fbb99d41b05acf0d7b93deb2fcdbf9047c238e Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Thu, 28 Nov 2013 11:58:02 +0100 Subject: block: Use BDRV_O_NO_BACKING where appropriate If you open an image temporarily just because you want to check its size or get it flushed, there's no real reason to open the whole backing file chain. Signed-off-by: Kevin Wolf Reviewed-by: Fam Zheng Reviewed-by: Benoit Canet --- block.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'block.c') diff --git a/block.c b/block.c index 08dd7f2..3d78581 100644 --- a/block.c +++ b/block.c @@ -1061,7 +1061,8 @@ int bdrv_open(BlockDriverState *bs, const char *filename, QDict *options, /* Get the required size from the image */ bs1 = bdrv_new(""); QINCREF(options); - ret = bdrv_open(bs1, filename, options, 0, drv, &local_err); + ret = bdrv_open(bs1, filename, options, BDRV_O_NO_BACKING, + drv, &local_err); if (ret < 0) { bdrv_unref(bs1); goto fail; -- cgit v1.1