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Diffstat (limited to 'block.c')
-rw-r--r--block.c34
1 files changed, 27 insertions, 7 deletions
diff --git a/block.c b/block.c
index 7c01f72f99..f4731eca6f 100644
--- a/block.c
+++ b/block.c
@@ -72,6 +72,8 @@ static int coroutine_fn bdrv_co_writev_em(BlockDriverState *bs,
int64_t sector_num, int nb_sectors,
QEMUIOVector *iov);
static int coroutine_fn bdrv_co_flush_em(BlockDriverState *bs);
+static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
+ int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
static QTAILQ_HEAD(, BlockDriverState) bdrv_states =
QTAILQ_HEAD_INITIALIZER(bdrv_states);
@@ -1253,13 +1255,14 @@ int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
return 0;
}
-int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors, QEMUIOVector *qiov)
+/*
+ * Handle a read request in coroutine context
+ */
+static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
+ int64_t sector_num, int nb_sectors, QEMUIOVector *qiov)
{
BlockDriver *drv = bs->drv;
- trace_bdrv_co_readv(bs, sector_num, nb_sectors);
-
if (!drv) {
return -ENOMEDIUM;
}
@@ -1270,12 +1273,21 @@ int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
return drv->bdrv_co_readv(bs, sector_num, nb_sectors, qiov);
}
-int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
+int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov)
{
- BlockDriver *drv = bs->drv;
+ trace_bdrv_co_readv(bs, sector_num, nb_sectors);
- trace_bdrv_co_writev(bs, sector_num, nb_sectors);
+ return bdrv_co_do_readv(bs, sector_num, nb_sectors, qiov);
+}
+
+/*
+ * Handle a write request in coroutine context
+ */
+static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs,
+ int64_t sector_num, int nb_sectors, QEMUIOVector *qiov)
+{
+ BlockDriver *drv = bs->drv;
if (!bs->drv) {
return -ENOMEDIUM;
@@ -1298,6 +1310,14 @@ int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
return drv->bdrv_co_writev(bs, sector_num, nb_sectors, qiov);
}
+int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
+ int nb_sectors, QEMUIOVector *qiov)
+{
+ trace_bdrv_co_writev(bs, sector_num, nb_sectors);
+
+ return bdrv_co_do_writev(bs, sector_num, nb_sectors, qiov);
+}
+
/**
* Truncate file to 'offset' bytes (needed only for file protocols)
*/