[libvirt] [PATCH] blockcopy: allow larger buf-size
While qemu definitely caps granularity to 64 MiB, it places no
limits on buf-size. On a machine beefy enough for lots of
memory, a buf-size larger than 2 GiB is feasible, so we should
pass a 64-bit parameter.
* include/libvirt/libvirt.h.in (VIR_DOMAIN_BLOCK_COPY_BUF_SIZE):
Allow 64 bits.
Signed-off-by: Eric Blake <eblake(a)redhat.com>
---
Based on Peter's review of my patch series; until we have an
implementation, it is just a doc bug, but I'd rather document
it correctly and avoid baking in a too-small API.
include/libvirt/libvirt.h.in | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index e79c9ad..e80634e 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -2663,8 +2663,8 @@ typedef enum {
* VIR_DOMAIN_BLOCK_COPY_BUF_SIZE:
* Macro for the virDomainBlockCopy buffer size tunable: it represents
* how much data in bytes can be in flight between source and destination,
- * as an unsigned int. Specifying 0 is the same as omitting this parameter,
- * to request the hypervisor default.
+ * as an unsigned long long. Specifying 0 is the same as omitting this
+ * parameter, to request the hypervisor default.
*/
#define VIR_DOMAIN_BLOCK_COPY_BUF_SIZE "buf-size"
--
1.9.3