migration: Create migrate_cpu_throttle_tailslow() function

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>

3 files changed, 11 insertions, 2 deletions

diff --git a/migration/options.c b/migration/options.c
index 31435d2..615534c 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -527,6 +527,15 @@ uint8_t migrate_cpu_throttle_initial(void)
     return s->parameters.cpu_throttle_initial;
 }
 
+bool migrate_cpu_throttle_tailslow(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->parameters.cpu_throttle_tailslow;
+}
+
 int migrate_decompress_threads(void)
 {
     MigrationState *s;
diff --git a/migration/options.h b/migration/options.h
index 49b29bd..99f6bbd 100644
--- a/migration/options.h
+++ b/migration/options.h
@@ -52,6 +52,7 @@ int migrate_compress_threads(void);
 int migrate_compress_wait_thread(void);
 uint8_t migrate_cpu_throttle_increment(void);
 uint8_t migrate_cpu_throttle_initial(void);
+bool migrate_cpu_throttle_tailslow(void);
 int migrate_decompress_threads(void);
 uint8_t migrate_max_cpu_throttle(void);
 int64_t migrate_max_postcopy_bandwidth(void);
diff --git a/migration/ram.c b/migration/ram.c
index 5645745..01356f6 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -711,10 +711,9 @@ static size_t save_page_header(PageSearchStatus *pss, QEMUFile *f,
 static void mig_throttle_guest_down(uint64_t bytes_dirty_period,
                                     uint64_t bytes_dirty_threshold)
 {
-    MigrationState *s = migrate_get_current();
     uint64_t pct_initial = migrate_cpu_throttle_initial();
     uint64_t pct_increment = migrate_cpu_throttle_increment();
-    bool pct_tailslow = s->parameters.cpu_throttle_tailslow;
+    bool pct_tailslow = migrate_cpu_throttle_tailslow();
     int pct_max = migrate_max_cpu_throttle();
 
     uint64_t throttle_now = cpu_throttle_get_percentage();