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migration: Rename res_{postcopy,precopy}_only

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Once that res_compatible is removed, they don't make sense anymore.
We remove the _only preffix.  And to make things clearer we rename
them to must_precopy and can_postcopy.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela
2023-02-15 20:04:30 +01:00
parent 24f254ed79
commit 24beea4efe
9 changed files with 59 additions and 66 deletions
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include/migration/register.h
+15 -12
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@@ -47,22 +47,25 @@ typedef struct SaveVMHandlers {
/* This runs outside the iothread lock! */
int (*save_setup)(QEMUFile *f, void *opaque);
/* Note for save_live_pending:
* - res_precopy_only is for data which must be migrated in precopy phase
* or in stopped state, in other words - before target vm start
* - res_postcopy_only is for data which must be migrated in postcopy phase
* or in stopped state, in other words - after source vm stop
* must_precopy:
* - must be migrated in precopy or in stopped state
* - i.e. must be migrated before target start
*
* Sum of res_postcopy_only and res_postcopy_only is the whole
* amount of pending data.
* can_postcopy:
* - can migrate in postcopy or in stopped state
* - i.e. can migrate after target start
* - some can also be migrated during precopy (RAM)
* - some must be migrated after source stops (block-dirty-bitmap)
*
* Sum of can_postcopy and must_postcopy is the whole amount of
* pending data.
*/
/* This estimates the remaining data to transfer */
void (*state_pending_estimate)(void *opaque,
uint64_t *res_precopy_only,
uint64_t *res_postcopy_only);
void (*state_pending_estimate)(void *opaque, uint64_t *must_precopy,
uint64_t *can_postcopy);
/* This calculate the exact remaining data to transfer */
void (*state_pending_exact)(void *opaque,
uint64_t *res_precopy_only,
uint64_t *res_postcopy_only);
void (*state_pending_exact)(void *opaque, uint64_t *must_precopy,
uint64_t *can_postcopy);
LoadStateHandler *load_state;
int (*load_setup)(QEMUFile *f, void *opaque);
int (*load_cleanup)(void *opaque);