File xen-ignore-live-parameter-from-xen-save-.patch of Package qemu

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File xen-ignore-live-parameter-from-xen-save-.patch of Package qemu (Revision 98f702a2db3a3521f5fc85ad4f2ee760)

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From: Olaf Hering <olaf@aepfle.de>
Date: Tue, 8 Jan 2019 14:20:08 +0100
Subject: xen: ignore live parameter from xen-save-devices-state

References: bsc#1079730, bsc#1101982, bsc#1063993

The final step of xl migrate|save for an HVM domU is saving the state of
qemu. This also involves releasing all block devices. While releasing
backends ought to be a separate step, such functionality is not
implemented.

Unfortunately, releasing the block devices depends on the optional
'live' option. This breaks offline migration with 'virsh migrate domU
dom0' because the sending side does not release the disks, as a result
the receiving side can not properly claim write access to the disks.

As a minimal fix, remove the dependency on the 'live' option. Upstream
may fix this in a different way, like removing the newly added 'live'
parameter entirely.

Fixes: 5d6c599fe1 ("migration, xen: Fix block image lock issue on live migration")

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 migration/savevm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/migration/savevm.c b/migration/savevm.c
index a843d202b5b4dd449e6982b59d80..d75642353e8276f5d3c391fe2c48 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -2820,7 +2820,7 @@ void qmp_xen_save_devices_state(const char *filename, bool has_live, bool live,
          * So call bdrv_inactivate_all (release locks) here to let the other
          * side of the migration take controle of the images.
          */
-        if (live && !saved_vm_running) {
+        if (!saved_vm_running) {
             ret = bdrv_inactivate_all();
             if (ret) {
                 error_setg(errp, "%s: bdrv_inactivate_all() failed (%d)",

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File xen-ignore-live-parameter-from-xen-save-.patch of Package qemu (Revision 98f702a2db3a3521f5fc85ad4f2ee760)

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