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Diffstat (limited to 'block/io.c')
-rw-r--r--block/io.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/block/io.c b/block/io.c
index fb99a7151c..5b2017fedc 100644
--- a/block/io.c
+++ b/block/io.c
@@ -776,6 +776,8 @@ static int coroutine_fn bdrv_driver_preadv(BlockDriverState *bs,
int64_t sector_num;
unsigned int nb_sectors;
+ assert(!(flags & ~BDRV_REQ_MASK));
+
if (drv->bdrv_co_preadv) {
return drv->bdrv_co_preadv(bs, offset, bytes, qiov, flags);
}
@@ -815,6 +817,8 @@ static int coroutine_fn bdrv_driver_pwritev(BlockDriverState *bs,
unsigned int nb_sectors;
int ret;
+ assert(!(flags & ~BDRV_REQ_MASK));
+
if (drv->bdrv_co_pwritev) {
ret = drv->bdrv_co_pwritev(bs, offset, bytes, qiov,
flags & bs->supported_write_flags);
@@ -953,6 +957,7 @@ static int coroutine_fn bdrv_aligned_preadv(BlockDriverState *bs,
assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
assert(!qiov || bytes == qiov->size);
assert((bs->open_flags & BDRV_O_NO_IO) == 0);
+ assert(!(flags & ~BDRV_REQ_MASK));
/* Handle Copy on Read and associated serialisation */
if (flags & BDRV_REQ_COPY_ON_READ) {
@@ -1242,6 +1247,7 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs,
assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
assert(!qiov || bytes == qiov->size);
assert((bs->open_flags & BDRV_O_NO_IO) == 0);
+ assert(!(flags & ~BDRV_REQ_MASK));
waited = wait_serialising_requests(req);
assert(!waited || !req->serialising);