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authorKevin Wolf <kwolf@redhat.com>2010-01-12 12:55:16 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2010-01-13 17:14:15 -0600
commitb783e409bf17b92f4af8dc5d6bd040d0092f33e0 (patch)
treedc2853143207a97ea7702ba242c159ac9ec67f2b /qemu-img.c
parent8f0056b763fec6a47fecc9908127c16b407e6c4d (diff)
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block: Introduce BDRV_O_NO_BACKING
If an image references a backing file that doesn't exist, qemu-img info fails to open this image. Exactly in this case the info would be valuable, though: the user might want to find out which file is missing. This patch introduces a BDRV_O_NO_BACKING flag to ignore the backing file when opening the image. qemu-img info is the first user and provides info now even if the backing file is invalid. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-img.c')
-rw-r--r--qemu-img.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/qemu-img.c b/qemu-img.c
index 1d97f2e..5ad88bf 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -884,7 +884,7 @@ static int img_info(int argc, char **argv)
} else {
drv = NULL;
}
- if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) {
+ if (bdrv_open2(bs, filename, BRDV_O_FLAGS | BDRV_O_NO_BACKING, drv) < 0) {
error("Could not open '%s'", filename);
}
bdrv_get_format(bs, fmt_name, sizeof(fmt_name));