From 4935e8be22745ff2b23bc87a5015176d991ce233 Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Thu, 28 Nov 2019 16:12:36 +0100 Subject: [PATCH] copy-on-read: Support compressed writes Signed-off-by: Max Reitz Reviewed-by: Andrey Shinkevich Reviewed-by: Kevin Wolf --- 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 a6e3c74a68..a6a864f147 100644 --- a/block/copy-on-read.c +++ b/block/copy-on-read.c @@ -107,6 +107,16 @@ 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); @@ -131,6 +141,7 @@ 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,