#ifndef BLOCK_INT_IO_H
#define BLOCK_INT_IO_H
-#include "block_int-common.h"
+#include "block/block_int-common.h"
+#include "qemu/hbitmap.h"
+#include "qemu/main-loop.h"
/*
* I/O API functions. These functions are thread-safe.
* the I/O API.
*/
-int coroutine_fn bdrv_co_preadv_snapshot(BdrvChild *child,
+int coroutine_fn GRAPH_RDLOCK bdrv_co_preadv_snapshot(BdrvChild *child,
int64_t offset, int64_t bytes, QEMUIOVector *qiov, size_t qiov_offset);
-int coroutine_fn bdrv_co_snapshot_block_status(BlockDriverState *bs,
- bool want_zero, int64_t offset, int64_t bytes, int64_t *pnum,
- int64_t *map, BlockDriverState **file);
-int coroutine_fn bdrv_co_pdiscard_snapshot(BlockDriverState *bs,
+int coroutine_fn GRAPH_RDLOCK bdrv_co_snapshot_block_status(
+ BlockDriverState *bs, bool want_zero, int64_t offset, int64_t bytes,
+ int64_t *pnum, int64_t *map, BlockDriverState **file);
+int coroutine_fn GRAPH_RDLOCK bdrv_co_pdiscard_snapshot(BlockDriverState *bs,
int64_t offset, int64_t bytes);
-int coroutine_fn bdrv_co_preadv(BdrvChild *child,
+int coroutine_fn GRAPH_RDLOCK bdrv_co_preadv(BdrvChild *child,
int64_t offset, int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
-int coroutine_fn bdrv_co_preadv_part(BdrvChild *child,
+int coroutine_fn GRAPH_RDLOCK bdrv_co_preadv_part(BdrvChild *child,
int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset, BdrvRequestFlags flags);
-int coroutine_fn bdrv_co_pwritev(BdrvChild *child,
+int coroutine_fn GRAPH_RDLOCK bdrv_co_pwritev(BdrvChild *child,
int64_t offset, int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
-int coroutine_fn bdrv_co_pwritev_part(BdrvChild *child,
+int coroutine_fn GRAPH_RDLOCK bdrv_co_pwritev_part(BdrvChild *child,
int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset, BdrvRequestFlags flags);
-static inline int coroutine_fn bdrv_co_pread(BdrvChild *child,
+static inline int coroutine_fn GRAPH_RDLOCK bdrv_co_pread(BdrvChild *child,
int64_t offset, int64_t bytes, void *buf, BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_CODE();
+ assert_bdrv_graph_readable();
return bdrv_co_preadv(child, offset, bytes, &qiov, flags);
}
-static inline int coroutine_fn bdrv_co_pwrite(BdrvChild *child,
+static inline int coroutine_fn GRAPH_RDLOCK bdrv_co_pwrite(BdrvChild *child,
int64_t offset, int64_t bytes, const void *buf, BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_CODE();
+ assert_bdrv_graph_readable();
return bdrv_co_pwritev(child, offset, bytes, &qiov, flags);
}
*/
void bdrv_wakeup(BlockDriverState *bs);
-const char *bdrv_get_parent_name(const BlockDriverState *bs);
+const char * GRAPH_RDLOCK bdrv_get_parent_name(const BlockDriverState *bs);
bool blk_dev_has_tray(BlockBackend *blk);
bool blk_dev_is_tray_open(BlockBackend *blk);
void bdrv_inc_in_flight(BlockDriverState *bs);
void bdrv_dec_in_flight(BlockDriverState *bs);
-int coroutine_fn bdrv_co_copy_range_from(BdrvChild *src, int64_t src_offset,
- BdrvChild *dst, int64_t dst_offset,
- int64_t bytes,
- BdrvRequestFlags read_flags,
- BdrvRequestFlags write_flags);
-int coroutine_fn bdrv_co_copy_range_to(BdrvChild *src, int64_t src_offset,
- BdrvChild *dst, int64_t dst_offset,
- int64_t bytes,
- BdrvRequestFlags read_flags,
- BdrvRequestFlags write_flags);
+int coroutine_fn GRAPH_RDLOCK
+bdrv_co_copy_range_from(BdrvChild *src, int64_t src_offset,
+ BdrvChild *dst, int64_t dst_offset,
+ int64_t bytes, BdrvRequestFlags read_flags,
+ BdrvRequestFlags write_flags);
+int coroutine_fn GRAPH_RDLOCK
+bdrv_co_copy_range_to(BdrvChild *src, int64_t src_offset,
+ BdrvChild *dst, int64_t dst_offset,
+ int64_t bytes, BdrvRequestFlags read_flags,
+ BdrvRequestFlags write_flags);
-int refresh_total_sectors(BlockDriverState *bs, int64_t hint);
+int coroutine_fn GRAPH_RDLOCK
+bdrv_co_refresh_total_sectors(BlockDriverState *bs, int64_t hint);
+
+int co_wrapper_mixed_bdrv_rdlock
+bdrv_refresh_total_sectors(BlockDriverState *bs, int64_t hint);
BdrvChild *bdrv_cow_child(BlockDriverState *bs);
BdrvChild *bdrv_filter_child(BlockDriverState *bs);
BdrvChild *bdrv_filter_or_cow_child(BlockDriverState *bs);
-BdrvChild *bdrv_primary_child(BlockDriverState *bs);
+BdrvChild * GRAPH_RDLOCK bdrv_primary_child(BlockDriverState *bs);
BlockDriverState *bdrv_skip_filters(BlockDriverState *bs);
BlockDriverState *bdrv_backing_chain_next(BlockDriverState *bs);
return child_bs(bdrv_cow_child(bs));
}
-static inline BlockDriverState *bdrv_filter_bs(BlockDriverState *bs)
+static inline BlockDriverState * GRAPH_RDLOCK
+bdrv_filter_bs(BlockDriverState *bs)
{
IO_CODE();
return child_bs(bdrv_filter_child(bs));
}
-static inline BlockDriverState *bdrv_filter_or_cow_bs(BlockDriverState *bs)
+static inline BlockDriverState * GRAPH_RDLOCK
+bdrv_filter_or_cow_bs(BlockDriverState *bs)
{
IO_CODE();
return child_bs(bdrv_filter_or_cow_child(bs));
}
-static inline BlockDriverState *bdrv_primary_bs(BlockDriverState *bs)
+static inline BlockDriverState * GRAPH_RDLOCK
+bdrv_primary_bs(BlockDriverState *bs)
{
IO_CODE();
return child_bs(bdrv_primary_child(bs));