[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PULL 12/18] migration: Add pss.postcopy_requested status
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[PULL 12/18] migration: Add pss.postcopy_requested status |
Date: |
Thu, 21 Apr 2022 19:40:46 +0100 |
From: Peter Xu <peterx@redhat.com>
This boolean flag shows whether the current page during migration is triggered
by postcopy or not. Then in ram_save_host_page() and deeper stack we'll be
able to have a reference on the priority of this page.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220331150857.74406-4-peterx@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
migration/ram.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/migration/ram.c b/migration/ram.c
index 3532f64ecb..bfcd45a36e 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -414,6 +414,8 @@ struct PageSearchStatus {
unsigned long page;
/* Set once we wrap around */
bool complete_round;
+ /* Whether current page is explicitly requested by postcopy */
+ bool postcopy_requested;
};
typedef struct PageSearchStatus PageSearchStatus;
@@ -1487,6 +1489,9 @@ retry:
*/
static bool find_dirty_block(RAMState *rs, PageSearchStatus *pss, bool *again)
{
+ /* This is not a postcopy requested page */
+ pss->postcopy_requested = false;
+
pss->page = migration_bitmap_find_dirty(rs, pss->block, pss->page);
if (pss->complete_round && pss->block == rs->last_seen_block &&
pss->page >= rs->last_page) {
@@ -1981,6 +1986,7 @@ static bool get_queued_page(RAMState *rs,
PageSearchStatus *pss)
* really rare.
*/
pss->complete_round = false;
+ pss->postcopy_requested = true;
}
return !!block;
--
2.35.1
- [PULL 15/18] migration: Move channel setup out of postcopy_try_recover(), (continued)
- [PULL 15/18] migration: Move channel setup out of postcopy_try_recover(), Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 14/18] migration: Export ram_load_postcopy(), Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 16/18] migration: Allow migrate-recover to run multiple times, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 09/18] tests: expand the migration precopy helper to support failures, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 07/18] tests: introduce ability to provide hooks for migration precopy test, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 06/18] tests: merge code for UNIX and TCP migration pre-copy tests, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 03/18] tests: print newline after QMP response in qtest logs, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 11/18] migration: Drop multifd tls_hostname cache, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 13/18] migration: Move migrate_allow_multifd and helpers into migration.c, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 18/18] migration: Read state once, Dr. David Alan Gilbert (git), 2022/04/21
- [PULL 12/18] migration: Add pss.postcopy_requested status,
Dr. David Alan Gilbert (git) <=
- [PULL 17/18] migration: Fix operator type, Dr. David Alan Gilbert (git), 2022/04/21
- Re: [PULL 00/18] migration queue, Richard Henderson, 2022/04/22