| commit | 8324ef86f004b1224844267d1fbbf4a80a54207d | |
| author | Wei Yang <richardw.yang@linux.intel.com> | |
| Mon, 19 Aug 2019 06:18:41 +0000 (19 14:18 +0800) | ||
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | |
| Wed, 25 Sep 2019 14:51:19 +0000 (25 15:51 +0100) | ||
| tree | 65839a17cf4c8c6e8ae7bc3726abc991833bc7e9 | treesnapshot (tar.gz zip) |
| parent | 91490583f3cc8613159008502decf2f1481508fd | commitdiff |
migration/postcopy: not necessary to do discard when canonicalizing bitmap
All pages, either partially sent or partially dirty, will be discarded in
postcopy_send_discard_bm_ram(), since we update the unsentmap to be
unsentmap = unsentmap | dirty in ram_postcopy_send_discard_bitmap().
This is not necessary to do discard when canonicalizing bitmap. And by
doing so, we separate the page discard into two individual steps:
* canonicalize bitmap
* discard page
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190819061843.28642-2-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
All pages, either partially sent or partially dirty, will be discarded in
postcopy_send_discard_bm_ram(), since we update the unsentmap to be
unsentmap = unsentmap | dirty in ram_postcopy_send_discard_bitmap().
This is not necessary to do discard when canonicalizing bitmap. And by
doing so, we separate the page discard into two individual steps:
* canonicalize bitmap
* discard page
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190819061843.28642-2-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| migration/ram.c | diffblobblamehistory |