[PULL 19/27] migration/multifd: Add a wrapper for channels_created

[peterx]

From: Fabiano Rosas <farosas@suse.de>

We'll need to access multifd_send_state->channels_created from outside
multifd.c, so introduce a helper for that.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240229153017.2221-17-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
---
 migration/multifd.h | 1 +
 migration/multifd.c | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/migration/multifd.h b/migration/multifd.h
index 1be985978e..1d8bbaf96b 100644
--- a/migration/multifd.h
+++ b/migration/multifd.h
@@ -17,6 +17,7 @@ typedef struct MultiFDRecvData MultiFDRecvData;
 
 bool multifd_send_setup(void);
 void multifd_send_shutdown(void);
+void multifd_send_channel_created(void);
 int multifd_recv_setup(Error **errp);
 void multifd_recv_cleanup(void);
 void multifd_recv_shutdown(void);
diff --git a/migration/multifd.c b/migration/multifd.c
index d470af73ba..3574fd3953 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -101,6 +101,11 @@ static bool multifd_use_packets(void)
     return !migrate_mapped_ram();
 }
 
+void multifd_send_channel_created(void)
+{
+    qemu_sem_post(&multifd_send_state->channels_created);
+}
+
 /* Multifd without compression */
 
 /**
@@ -1023,7 +1028,7 @@ out:
      * Here we're not interested whether creation succeeded, only that
      * it happened at all.
      */
-    qemu_sem_post(&multifd_send_state->channels_created);
+    multifd_send_channel_created();
 
     if (ret) {
         return;
-- 
2.44.0