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-rw-r--r--block_int.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/block_int.h b/block_int.h
index f4547f6..5aadc1f 100644
--- a/block_int.h
+++ b/block_int.h
@@ -84,10 +84,15 @@ 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);
+ /*
+ * 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);
+
int (*bdrv_aio_multiwrite)(BlockDriverState *bs, BlockRequest *reqs,
int num_reqs);
int (*bdrv_merge_requests)(BlockDriverState *bs, BlockRequest* a,