Merge tag 'migration-20230518-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request

Hi

Based on latest reviewed parts of migration:
- Disable colo (vladimir)
- Migration atomic counters (juan)

Please apply.

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# gpg: Signature made Thu 18 May 2023 10:12:53 AM PDT
# gpg:                using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [undefined]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* tag 'migration-20230518-pull-request' of https://gitlab.com/juan.quintela/qemu:
  migration: Fix duplicated included in meson.build
  migration/multifd: Compute transferred bytes correctly
  migration: We don't need the field rate_limit_used anymore
  migration: Use migration_transferred_bytes() to calculate rate_limit
  migration: Add a trace for migration_transferred_bytes
  migration: Move migration_total_bytes() to migration-stats.c
  migration: Move rate_limit_max and rate_limit_used to migration_stats
  qemu-file: Account for rate_limit usage on qemu_fflush()
  migration: Don't use INT64_MAX for unlimited rate
  migration: process_incoming_migration_co(): move colo part to colo
  migration: split migration_incoming_co
  configure: add --disable-colo-proxy option

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

2 files changed, 19 insertions, 2 deletions

diff --git a/include/migration/colo.h b/include/migration/colo.h
index 7ef315473e..eaac07f26d 100644
--- a/include/migration/colo.h
+++ b/include/migration/colo.h
@@ -28,7 +28,6 @@ bool migration_in_colo_state(void);
 int migration_incoming_enable_colo(void);
 void migration_incoming_disable_colo(void);
 bool migration_incoming_colo_enabled(void);
-void *colo_process_incoming_thread(void *opaque);
 bool migration_incoming_in_colo_state(void);
 
 COLOMode get_colo_mode(void);
@@ -44,5 +43,13 @@ void colo_do_failover(void);
  */
 void colo_checkpoint_delay_set(void);
 
+/*
+ * Starts COLO incoming process. Called from process_incoming_migration_co()
+ * after loading the state.
+ *
+ * Called with BQL locked, may temporary release BQL.
+ */
+int coroutine_fn colo_incoming_co(void);
+
 void colo_shutdown(void);
 #endif
diff --git a/include/migration/qemu-file-types.h b/include/migration/qemu-file-types.h
index 1436f9ce92..9ba163f333 100644
--- a/include/migration/qemu-file-types.h
+++ b/include/migration/qemu-file-types.h
@@ -165,6 +165,16 @@ size_t coroutine_mixed_fn qemu_get_counted_string(QEMUFile *f, char buf[256]);
 
 void qemu_put_counted_string(QEMUFile *f, const char *name);
 
-int qemu_file_rate_limit(QEMUFile *f);
+/**
+ * migration_rate_exceeded: Check if we have exceeded rate for this interval
+ *
+ * Checks if we have already transferred more data that we are allowed
+ * in the current interval.
+ *
+ * @f: QEMUFile used for main migration channel
+ *
+ * Returns if we should stop sending data for this interval.
+ */
+bool migration_rate_exceeded(QEMUFile *f);
 
 #endif