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migration: Move the yank unregister of channel_close out

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It's efficient, but hackish to call yank unregister calls in channel_close(),
especially it'll be hard to debug when qemu crashed with some yank function
leaked.

Remove that hack, but instead explicitly unregister yank functions at the
places where needed, they are:

  (on src)
  - migrate_fd_cleanup
  - postcopy_pause

  (on dst)
  - migration_incoming_state_destroy
  - postcopy_pause_incoming

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-6-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Peter Xu 2021-07-22 13:58:41 -04:00 • committed by Dr. David Alan Gilbert
parent c6ad5be7ae
commit 39675ffffb
5 changed files with 35 additions and 4 deletions
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1
migration/yank_functions.h
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@ -17,3 +17,4 @@
void migration_yank_iochannel(void *opaque);
void migration_ioc_register_yank(QIOChannel *ioc);
void migration_ioc_unregister_yank(QIOChannel *ioc);
void migration_ioc_unregister_yank_from_file(QEMUFile *file);