Version 1.0.1

[qemu.git] / block_int.h

diff --git a/block_int.h b/block_int.h
index 3929ec90a55a02a1f9e0c4187f44c602fe513dbe..77c0187c3d3ad287eb7f90385094acdd751a1c6f 100644 (file)
--- a/block_int.h
+++ b/block_int.h
@@ -29,6 +29,7 @@
 #include "qemu-queue.h"
 #include "qemu-coroutine.h"
 #include "qemu-timer.h"
+#include "qapi-types.h"
 
 #define BLOCK_FLAG_ENCRYPT     1
 #define BLOCK_FLAG_COMPAT6     4
@@ -83,10 +84,27 @@ struct BlockDriver {
         int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
     int coroutine_fn (*bdrv_co_writev)(BlockDriverState *bs,
         int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
-    int coroutine_fn (*bdrv_co_flush)(BlockDriverState *bs);
     int coroutine_fn (*bdrv_co_discard)(BlockDriverState *bs,
         int64_t sector_num, int nb_sectors);
 
+    /*
+     * Invalidate any cached meta-data.
+     */
+    void (*bdrv_invalidate_cache)(BlockDriverState *bs);
+
+    /*
+     * Flushes all data that was already written to the OS all the way down to
+     * the disk (for example raw-posix calls fsync()).
+     */
+    int coroutine_fn (*bdrv_co_flush_to_disk)(BlockDriverState *bs);
+
+    /*
+     * Flushes all internal caches to the OS. The data may still sit in a
+     * writeback cache of the host OS, but it will survive a crash of the qemu
+     * process.
+     */
+    int coroutine_fn (*bdrv_co_flush_to_os)(BlockDriverState *bs);
+
     int (*bdrv_aio_multiwrite)(BlockDriverState *bs, BlockRequest *reqs,
         int num_reqs);
     int (*bdrv_merge_requests)(BlockDriverState *bs, BlockRequest* a,
@@ -203,7 +221,7 @@ struct BlockDriverState {
     int cyls, heads, secs, translation;
     BlockErrorAction on_read_error, on_write_error;
     bool iostatus_enabled;
-    BlockIOStatus iostatus;
+    BlockDeviceIoStatus iostatus;
     char device_name[32];
     unsigned long *dirty_bitmap;
     int64_t dirty_count;