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migration: Switch to using announce timer

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Switch the announcements to using the new announce timer.
Move the code that does it to announce.c rather than savevm
because it really has nothing to do with the actual migration.

Migration starts the announce from bh's and so they're all
in the main thread/bql, and so there's never any racing with
the timers themselves.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2019-02-27 13:24:08 +00:00 • committed by Jason Wang
parent 9d8c6a258c
commit 7659505c16
9 changed files with 81 additions and 83 deletions
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10
include/migration/misc.h
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@ -29,16 +29,6 @@ void blk_mig_init(void);
static inline void blk_mig_init(void) {}
#endif
#define SELF_ANNOUNCE_ROUNDS 5
static inline
int64_t self_announce_delay(int round)
{
assert(round < SELF_ANNOUNCE_ROUNDS && round > 0);
/* delay 50ms, 150ms, 250ms, ... */
return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100;
}
AnnounceParameters *migrate_announce_params(void);
/* migration/savevm.c */