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| author | David Hildenbrand <david@redhat.com> | 2023-01-05 13:45:25 +0100 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2023-02-06 19:22:56 +0100 |
| commit | 72ef3a370836aa07261ad7aaeea27ed5cbcee342 (patch) | |
| tree | ac29b9ef11fa628301ba6d0c0583e8997dec8e5e /python/qemu/utils/accel.py | |
| parent | 5f19a4491941fdc5c5b50ce4ade6ffffe0f591b4 (diff) | |
| download | focaccia-qemu-72ef3a370836aa07261ad7aaeea27ed5cbcee342.tar.gz focaccia-qemu-72ef3a370836aa07261ad7aaeea27ed5cbcee342.zip | |
migration/ram: Fix error handling in ram_write_tracking_start()
If something goes wrong during uffd_change_protection(), we would miss
to unregister uffd-wp and not release our reference. Fix it by
performing the uffd_change_protection(true) last.
Note that a uffd_change_protection(false) on the recovery path without a
prior uffd_change_protection(false) is fine.
Fixes: 278e2f551a09 ("migration: support UFFD write fault processing in ram_save_iterate()")
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'python/qemu/utils/accel.py')
0 files changed, 0 insertions, 0 deletions