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migration: fix incorrect enable return path 

0425dc9 is actually v1 of that patch, but it was accidentally
merged (while there was a v2). That will cause problem when we try to
migrate to some old QEMUs when return path is not really there. Let's
fix it, then squashing this patch with 0425dc9 will be exactly patch
content of v2.

Fixes: 0425dc9 ("migration: isolate return path on src")
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
master
Peter Xu 2017-06-14 15:55:58 +08:00 committed by Juan Quintela
parent 68a4a2fda1
commit 62a0265852
1 changed files with 5 additions and 1 deletions
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6
migration/migration.c
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@ -1814,7 +1814,11 @@ static void *migration_thread(void *opaque)
qemu_savevm_state_header(s->to_dst_file);
if (s->to_dst_file) {
/*
* If we opened the return path, we need to make sure dst has it
* opened as well.
*/
if (s->rp_state.from_dst_file) {
/* Now tell the dest that it should open its end so it can reply */
qemu_savevm_send_open_return_path(s->to_dst_file);