1 files changed, 9 insertions, 40 deletions

diff --git a/block/io.c b/block/io.c
index 2891303a8d..c3dc1db036 100644
--- a/block/io.c
+++ b/block/io.c
@@ -890,23 +890,11 @@ static int bdrv_check_byte_request(BlockDriverState *bs, int64_t offset,
     return 0;
 }
 
-int coroutine_fn bdrv_co_prwv(BdrvChild *child, int64_t offset,
-                              QEMUIOVector *qiov, bool is_write,
-                              BdrvRequestFlags flags)
-{
-    if (is_write) {
-        return bdrv_co_pwritev(child, offset, qiov->size, qiov, flags);
-    } else {
-        return bdrv_co_preadv(child, offset, qiov->size, qiov, flags);
-    }
-}
-
 int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
                        int bytes, BdrvRequestFlags flags)
 {
-    QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, NULL, bytes);
-
-    return bdrv_prwv(child, offset, &qiov, true, BDRV_REQ_ZERO_WRITE | flags);
+    return bdrv_pwritev(child, offset, bytes, NULL,
+                        BDRV_REQ_ZERO_WRITE | flags);
 }
 
 /*
@@ -950,41 +938,19 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
     }
 }
 
-/* return < 0 if error. See bdrv_pwrite() for the return codes */
-int bdrv_preadv(BdrvChild *child, int64_t offset, QEMUIOVector *qiov)
-{
-    int ret;
-
-    ret = bdrv_prwv(child, offset, qiov, false, 0);
-    if (ret < 0) {
-        return ret;
-    }
-
-    return qiov->size;
-}
-
 /* See bdrv_pwrite() for the return codes */
 int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int bytes)
 {
+    int ret;
     QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
 
     if (bytes < 0) {
         return -EINVAL;
     }
 
-    return bdrv_preadv(child, offset, &qiov);
-}
-
-int bdrv_pwritev(BdrvChild *child, int64_t offset, QEMUIOVector *qiov)
-{
-    int ret;
+    ret = bdrv_preadv(child, offset, bytes, &qiov,  0);
 
-    ret = bdrv_prwv(child, offset, qiov, true, 0);
-    if (ret < 0) {
-        return ret;
-    }
-
-    return qiov->size;
+    return ret < 0 ? ret : bytes;
 }
 
 /* Return no. of bytes on success or < 0 on error. Important errors are:
@@ -995,13 +961,16 @@ int bdrv_pwritev(BdrvChild *child, int64_t offset, QEMUIOVector *qiov)
 */
 int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf, int bytes)
 {
+    int ret;
     QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
 
     if (bytes < 0) {
         return -EINVAL;
     }
 
-    return bdrv_pwritev(child, offset, &qiov);
+    ret = bdrv_pwritev(child, offset, bytes, &qiov, 0);
+
+    return ret < 0 ? ret : bytes;
 }
 
 /*