block: Use blk_{commit,flush}_all() consistently

Replace bdrv_commmit_all() and bdrv_flush_all() by their BlockBackend
equivalents.
Signed-off-by: NMax Reitz <mreitz@redhat.com>
Reviewed-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

blockdev.c

@@ -1173,7 +1173,7 @@ void hmp_commit(Monitor *mon, const QDict *qdict)
     int ret;
 
     if (!strcmp(device, "all")) {
-        ret = bdrv_commit_all();
+        ret = blk_commit_all();
     } else {
         BlockDriverState *bs;
         AioContext *aio_context;

cpus.c

@@ -29,6 +29,7 @@
 #include "qapi/qmp/qerror.h"
 #include "qemu/error-report.h"
 #include "sysemu/sysemu.h"
+#include "sysemu/block-backend.h"
 #include "exec/gdbstub.h"
 #include "sysemu/dma.h"
 #include "sysemu/kvm.h"
@@ -734,7 +735,7 @@ static int do_vm_stop(RunState state)
     }
 
     bdrv_drain_all();
-    ret = bdrv_flush_all();
+    ret = blk_flush_all();
 
     return ret;
 }
@@ -1433,7 +1434,7 @@ int vm_stop_force_state(RunState state)
         bdrv_drain_all();
         /* Make sure to return an error if the flush in a previous vm_stop()
          * failed. */
-        return bdrv_flush_all();
+        return blk_flush_all();
     }
 }
 

qemu-char.c

@@ -25,6 +25,7 @@
 #include "qemu-common.h"
 #include "monitor/monitor.h"
 #include "sysemu/sysemu.h"
+#include "sysemu/block-backend.h"
 #include "qemu/error-report.h"
 #include "qemu/timer.h"
 #include "sysemu/char.h"
@@ -628,7 +629,7 @@ static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
                  break;
             }
         case 's':
-            bdrv_commit_all();
+            blk_commit_all();
             break;
         case 'b':
             qemu_chr_be_event(chr, CHR_EVENT_BREAK);