Pass through the FUA flag to the lower layer so that the separate flush
can be saved in practically relevant cases where a (raw) format driver
sits on top of the protocol driver.
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
block/raw_bsd.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/block/raw_bsd.c b/block/raw_bsd.c
index ea16a23..8747bca 100644
--- a/block/raw_bsd.c
+++ b/block/raw_bsd.c
@@ -56,8 +56,9 @@ static int coroutine_fn raw_co_readv(BlockDriverState *bs,
int64_t sector_num,
return bdrv_co_readv(bs->file->bs, sector_num, nb_sectors, qiov);
}
-static int coroutine_fn raw_co_writev(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors, QEMUIOVector *qiov)
+static int coroutine_fn
+raw_co_writev_flags(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
+ QEMUIOVector *qiov, int flags)
{
void *buf = NULL;
BlockDriver *drv;
@@ -103,7 +104,8 @@ static int coroutine_fn raw_co_writev(BlockDriverState *bs,
int64_t sector_num,
}
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
- ret = bdrv_co_writev(bs->file->bs, sector_num, nb_sectors, qiov);
+ ret = bdrv_co_do_pwritev(bs->file->bs, sector_num * BDRV_SECTOR_SIZE,
+ nb_sectors * BDRV_SECTOR_SIZE, qiov, flags);
fail:
if (qiov == &local_qiov) {
@@ -113,6 +115,13 @@ fail:
return ret;
}
+static int coroutine_fn
+raw_co_writev(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
+ QEMUIOVector *qiov)
+{
+ return raw_co_writev_flags(bs, sector_num, nb_sectors, qiov, 0);
+}
+
static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs,
int64_t sector_num,
int nb_sectors, int *pnum,
@@ -247,6 +256,8 @@ BlockDriver bdrv_raw = {
.bdrv_create = &raw_create,
.bdrv_co_readv = &raw_co_readv,
.bdrv_co_writev = &raw_co_writev,
+ .bdrv_co_writev_flags = &raw_co_writev_flags,
+ .supported_write_flags = BDRV_REQ_FUA,
.bdrv_co_write_zeroes = &raw_co_write_zeroes,
.bdrv_co_discard = &raw_co_discard,
.bdrv_co_get_block_status = &raw_co_get_block_status,
--
1.8.3.1
