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[PATCH RFC 02/13] migration: Add postcopy_preempt_active()
From: |
Peter Xu |
Subject: |
[PATCH RFC 02/13] migration: Add postcopy_preempt_active() |
Date: |
Mon, 29 Aug 2022 12:56:48 -0400 |
Add the helper to show that postcopy preempt enabled, meanwhile active.
Signed-off-by: Peter Xu <peterx@redhat.com>
---
migration/ram.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index dc1de9ddbc..8c5d5332e8 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -162,6 +162,11 @@ out:
return ret;
}
+static bool postcopy_preempt_active(void)
+{
+ return migrate_postcopy_preempt() && migration_in_postcopy();
+}
+
bool ramblock_is_ignored(RAMBlock *block)
{
return !qemu_ram_is_migratable(block) ||
@@ -2434,7 +2439,7 @@ static void postcopy_preempt_choose_channel(RAMState *rs,
PageSearchStatus *pss)
/* We need to make sure rs->f always points to the default channel elsewhere */
static void postcopy_preempt_reset_channel(RAMState *rs)
{
- if (migrate_postcopy_preempt() && migration_in_postcopy()) {
+ if (postcopy_preempt_active()) {
rs->postcopy_channel = RAM_CHANNEL_PRECOPY;
rs->f = migrate_get_current()->to_dst_file;
trace_postcopy_preempt_reset_channel();
@@ -2472,7 +2477,7 @@ static int ram_save_host_page(RAMState *rs,
PageSearchStatus *pss)
return 0;
}
- if (migrate_postcopy_preempt() && migration_in_postcopy()) {
+ if (postcopy_preempt_active()) {
postcopy_preempt_choose_channel(rs, pss);
}
--
2.32.0
- [PATCH RFC 00/13] migration: Postcopy Preempt-Full, Peter Xu, 2022/08/29
- [PATCH RFC 02/13] migration: Add postcopy_preempt_active(),
Peter Xu <=
- [PATCH RFC 01/13] migration: Use non-atomic ops for clear log bitmap, Peter Xu, 2022/08/29
- [PATCH RFC 06/13] migration: Trivial cleanup save_page_header() on same block check, Peter Xu, 2022/08/29
- [PATCH RFC 07/13] migration: Remove RAMState.f references in compression code, Peter Xu, 2022/08/29
- [PATCH RFC 04/13] migration: Cleanup xbzrle zero page cache update logic, Peter Xu, 2022/08/29
- [PATCH RFC 11/13] migration: Make PageSearchStatus part of RAMState, Peter Xu, 2022/08/29
- [PATCH RFC 03/13] migration: Yield bitmap_mutex properly when sending/sleeping, Peter Xu, 2022/08/29
- [PATCH RFC 08/13] migration: Teach PSS about host page, Peter Xu, 2022/08/29
- [PATCH RFC 10/13] migration: Add pss_init(), Peter Xu, 2022/08/29
- [PATCH RFC 13/13] migration: Send requested page directly in rp-return thread, Peter Xu, 2022/08/29
- [PATCH RFC 05/13] migration: Disallow postcopy preempt to be used with compress, Peter Xu, 2022/08/29