On 14/05/13 21:50, Christophe Fergeau wrote:
qemu-img resize will fail with "The new size must be a multiple of 512"
if libvirt doesn't round it first.
This fixes rhbz#951495
Signed-off-by: Christophe Fergeau <[email protected]>
---
src/storage/storage_backend_fs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c
index 9b83e57..99973b0 100644
--- a/src/storage/storage_backend_fs.c
+++ b/src/storage/storage_backend_fs.c
@@ -1219,6 +1219,10 @@ virStorageBackendFilesystemResizeQemuImg(const char
*path,
return -1;
}
+ /* Round capacity up to the closest 512 multiple as qemu-img errors out
+ * on sizes which are not a multiple of 512 */
+ capacity = (capacity + 511) / 512 * 512;
There is macro VIR_DIV_UP for the purpose. And should we document
it somewhere? I guess one will file bug like "specify 1 for vol-resize, but
the result is 512".
Osier
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