[Qemu-block] [PATCH v6 02/42] copy-on-read: Support compressed writes

[Max Reitz]

Signed-off-by: Max Reitz <mre...@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
---
 block/copy-on-read.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index 6631f30205..16bdf630b6 100644
--- a/block/copy-on-read.c
+++ b/block/copy-on-read.c
@@ -113,6 +113,16 @@ static int coroutine_fn cor_co_pdiscard(BlockDriverState 
*bs,
 }
 
 
+static int coroutine_fn cor_co_pwritev_compressed(BlockDriverState *bs,
+                                                  uint64_t offset,
+                                                  uint64_t bytes,
+                                                  QEMUIOVector *qiov)
+{
+    return bdrv_co_pwritev(bs->file, offset, bytes, qiov,
+                           BDRV_REQ_WRITE_COMPRESSED);
+}
+
+
 static void cor_eject(BlockDriverState *bs, bool eject_flag)
 {
     bdrv_eject(bs->file->bs, eject_flag);
@@ -145,6 +155,7 @@ static BlockDriver bdrv_copy_on_read = {
     .bdrv_co_pwritev                    = cor_co_pwritev,
     .bdrv_co_pwrite_zeroes              = cor_co_pwrite_zeroes,
     .bdrv_co_pdiscard                   = cor_co_pdiscard,
+    .bdrv_co_pwritev_compressed         = cor_co_pwritev_compressed,
 
     .bdrv_eject                         = cor_eject,
     .bdrv_lock_medium                   = cor_lock_medium,
-- 
2.21.0