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qemu-kvm/SOURCES/kvm-migration-Make-postcopy...

70 lines
2.5 KiB

From e6ff4536a5e5f5bbfda370ecb525d0e066c3ab1c Mon Sep 17 00:00:00 2001
From: Juan Quintela <quintela@redhat.com>
Date: Tue, 11 Apr 2023 18:04:59 +0200
Subject: [PATCH 15/56] migration: Make postcopy_requests atomic
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Peter Xu <peterx@redhat.com>
RH-MergeRequest: 162: migration: Pretty failures for postcopy on unsupported memory types
RH-Bugzilla: 2057267
RH-Acked-by: Leonardo Brás <leobras@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: quintela1 <quintela@redhat.com>
RH-Commit: [14/50] d15c6052b77e7ded7bf34c66caa11bf86b75f2e8 (peterx/qemu-kvm)
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
(cherry picked from commit 3c764f9b2bc3e5eb5ed93ab45c2de6d599fef00f)
Signed-off-by: Peter Xu <peterx@redhat.com>
---
migration/migration.c | 3 ++-
migration/ram.c | 2 +-
migration/ram.h | 2 +-
3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index 8fca751050..39501a0ed8 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1152,7 +1152,8 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s)
stat64_get(&ram_counters.dirty_sync_count);
info->ram->dirty_sync_missed_zero_copy =
stat64_get(&ram_counters.dirty_sync_missed_zero_copy);
- info->ram->postcopy_requests = ram_counters.postcopy_requests;
+ info->ram->postcopy_requests =
+ stat64_get(&ram_counters.postcopy_requests);
info->ram->page_size = page_size;
info->ram->multifd_bytes = stat64_get(&ram_counters.multifd_bytes);
info->ram->pages_per_second = s->pages_per_second;
diff --git a/migration/ram.c b/migration/ram.c
index 3c13136559..fe69ecaef4 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -2169,7 +2169,7 @@ int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len)
RAMBlock *ramblock;
RAMState *rs = ram_state;
- ram_counters.postcopy_requests++;
+ stat64_add(&ram_counters.postcopy_requests, 1);
RCU_READ_LOCK_GUARD();
if (!rbname) {
diff --git a/migration/ram.h b/migration/ram.h
index 8c0d07c43a..afa68521d7 100644
--- a/migration/ram.h
+++ b/migration/ram.h
@@ -49,7 +49,7 @@ typedef struct {
Stat64 multifd_bytes;
Stat64 normal;
Stat64 postcopy_bytes;
- int64_t postcopy_requests;
+ Stat64 postcopy_requests;
Stat64 precopy_bytes;
int64_t remaining;
Stat64 transferred;
--
2.39.1