buffered_file: unfold migrate_fd_close

We only used it once, just remove the callback indirection.

Signed-off-by: Juan Quintela <quintela@redhat.com>

buffered_file.c

@@ -23,7 +23,6 @@
 
 typedef struct QEMUFileBuffered
 {
-    BufferedCloseFunc *close;
     MigrationState *migration_state;
     QEMUFile *file;
     int freeze_output;
@@ -147,7 +146,7 @@ static int buffered_close(void *opaque)
             migrate_fd_wait_for_unfreeze(s->migration_state);
     }
 
-    ret = s->close(s->migration_state);
+    ret = migrate_fd_close(s->migration_state);
 
     qemu_del_timer(s->timer);
     qemu_free_timer(s->timer);
@@ -224,8 +223,7 @@ static void buffered_rate_tick(void *opaque)
 }
 
 QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state,
-                                  size_t bytes_per_sec,
-                                  BufferedCloseFunc *close)
+                                  size_t bytes_per_sec)
 {
     QEMUFileBuffered *s;
 
@@ -233,7 +231,6 @@ QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state,
 
     s->migration_state = migration_state;
     s->xfer_limit = bytes_per_sec / 10;
-    s->close = close;
 
     s->file = qemu_fopen_ops(s, buffered_put_buffer, NULL,
                              buffered_close, buffered_rate_limit,

buffered_file.h

@@ -17,10 +17,7 @@
 #include "hw/hw.h"
 #include "migration.h"
 
-typedef int (BufferedCloseFunc)(void *opaque);
-
 QEMUFile *qemu_fopen_ops_buffered(MigrationState *migration_state,
-                                  size_t xfer_limit,
-                                  BufferedCloseFunc *close);
+                                  size_t xfer_limit);
 
 #endif

migration.c

@@ -392,10 +392,8 @@ void migrate_fd_wait_for_unfreeze(MigrationState *s)
     }
 }
 
-static int migrate_fd_close(void *opaque)
+int migrate_fd_close(MigrationState *s)
 {
-    MigrationState *s = opaque;
-
     qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
     return s->close(s);
 }
@@ -431,9 +429,7 @@ void migrate_fd_connect(MigrationState *s)
     int ret;
 
     s->state = MIG_STATE_ACTIVE;
-    s->file = qemu_fopen_ops_buffered(s,
-                                      s->bandwidth_limit,
-                                      migrate_fd_close);
+    s->file = qemu_fopen_ops_buffered(s, s->bandwidth_limit);
 
     DPRINTF("beginning savevm\n");
     ret = qemu_savevm_state_begin(s->file, &s->params);

migration.h

@@ -82,6 +82,7 @@ ssize_t migrate_fd_put_buffer(MigrationState *s, const void *data,
                               size_t size);
 void migrate_fd_put_ready(MigrationState *s);
 void migrate_fd_wait_for_unfreeze(MigrationState *s);
+int migrate_fd_close(MigrationState *s);
 
 void add_migration_state_change_notifier(Notifier *notify);
 void remove_migration_state_change_notifier(Notifier *notify);