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migration: Drop inactivate_disk param in qemu_savevm_state_complete*

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This parameter is only used by one caller, which is the genuine precopy
complete path (migration_completion_precopy).

The parameter was introduced in a1fbe750fd ("migration: Fix race of image
locking between src and dst") to make sure the inactivate will happen
before EOF to make sure dest will always be able to activate the disk
properly.  However there's no limitation on how early we inactivate the
disk.  For precopy completion path, we can always do that as long as VM is
stopped.

Move the disk inactivate there, then we can remove this inactivate_disk
parameter in the whole call stack, because all the rest users pass in false
always.

Signed-off-by: Peter Xu <peterx@redhat.com>
Tested-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Juraj Marcin <jmarcin@redhat.com>
Link: https://lore.kernel.org/r/20250114230746.3268797-6-peterx@redhat.com
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Peter Xu 2025-01-14 18:07:35 -05:00 • committed by Fabiano Rosas
parent 812145fcf7
commit 4822128693
3 changed files with 23 additions and 31 deletions
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5
migration/savevm.h
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@ -39,8 +39,7 @@ void qemu_savevm_state_header(QEMUFile *f);
int qemu_savevm_state_iterate(QEMUFile *f, bool postcopy);
void qemu_savevm_state_cleanup(void);
void qemu_savevm_state_complete_postcopy(QEMUFile *f);
int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only,
bool inactivate_disks);
int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only);
void qemu_savevm_state_pending_exact(uint64_t *must_precopy,
uint64_t *can_postcopy);
void qemu_savevm_state_pending_estimate(uint64_t *must_precopy,
@ -68,6 +67,6 @@ int qemu_loadvm_state_main(QEMUFile *f, MigrationIncomingState *mis);
int qemu_load_device_state(QEMUFile *f);
int qemu_loadvm_approve_switchover(void);
int qemu_savevm_state_complete_precopy_non_iterable(QEMUFile *f,
bool in_postcopy, bool inactivate_disks);
bool in_postcopy);
#endif