On 05/14/13 15:50, 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 <cfergeau@xxxxxxxxxx>
---
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;
Please use the macro introduced specifically for this purpose for the
first part.
/* divide value by size, rounding up */
# define VIR_DIV_UP(value, size) (((value) + (size) - 1) / (size))
defined in internal.h
+
cmd = virCommandNew(img_tool);
virCommandAddArgList(cmd, "resize", path, NULL);
virCommandAddArgFormat(cmd, "%llu", capacity);
Peter
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