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migration/multifd: Unify RAM_SAVE_FLAG_MULTIFD_FLUSH messages

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RAM_SAVE_FLAG_MULTIFD_FLUSH message should always be correlated to a sync
request on src.  Unify such message into one place, and conditionally send
the message only if necessary.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20241206224755.1108686-5-peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Peter Xu 2024-12-06 17:47:52 -05:00 • committed by Fabiano Rosas
parent 604b4749c5
commit e5f14aa5fe
3 changed files with 30 additions and 17 deletions
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2
migration/multifd.h
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@ -354,7 +354,7 @@ static inline uint32_t multifd_ram_page_count(void)
void multifd_ram_save_setup(void);
void multifd_ram_save_cleanup(void);
int multifd_ram_flush_and_sync(void);
int multifd_ram_flush_and_sync(QEMUFile *f);
size_t multifd_ram_payload_size(void);
void multifd_ram_fill_packet(MultiFDSendParams *p);
int multifd_ram_unfill_packet(MultiFDRecvParams *p, Error **errp);