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stop dirty tracking just at the end of migration (Glauber Costa) 

If there is still work to do, it is not safe to assume we
can end the dirty tracking. Specifically, kvm can update the dirty
tracking log inside ram_save_block(), leaving pages still out of sync
if we go with the current code.

Based on a patch by Yaniv Kamay

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/branches/stable_0_10@7002 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-04-05 19:33:41 +00:00
parent da0ac2bc13
commit 80acab6c50
1 changed files with 1 additions and 1 deletions
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2
vl.c
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@ -3220,10 +3220,10 @@ static int ram_save_live(QEMUFile *f, int stage, void *opaque)
/* try transferring iterative blocks of memory */
if (stage == 3) {
cpu_physical_memory_set_dirty_tracking(0);
/* flush all remaining blocks regardless of rate limiting */
while (ram_save_block(f) != 0);
cpu_physical_memory_set_dirty_tracking(0);
}
qemu_put_be64(f, RAM_SAVE_FLAG_EOS);