#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
+#include "block/block-io.h"
#include "block/block_int.h"
#include "qemu/module.h"
#include "qemu/bswap.h"
uint32_t offsets_size, max_compressed_block_size = 1, i;
int ret;
+ bdrv_graph_rdlock_main_loop();
ret = bdrv_apply_auto_read_only(bs, NULL, errp);
+ bdrv_graph_rdunlock_main_loop();
if (ret < 0) {
return ret;
}
- bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
- BDRV_CHILD_IMAGE, false, errp);
- if (!bs->file) {
- return -EINVAL;
+ ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
+ if (ret < 0) {
+ return ret;
}
/* read header */
- ret = bdrv_pread(bs->file, 128, &s->block_size, 4);
+ ret = bdrv_pread(bs->file, 128, 4, &s->block_size, 0);
if (ret < 0) {
return ret;
}
return -EINVAL;
}
- ret = bdrv_pread(bs->file, 128 + 4, &s->n_blocks, 4);
+ ret = bdrv_pread(bs->file, 128 + 4, 4, &s->n_blocks, 0);
if (ret < 0) {
return ret;
}
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, 128 + 4 + 4, s->offsets, offsets_size);
+ ret = bdrv_pread(bs->file, 128 + 4 + 4, offsets_size, s->offsets, 0);
if (ret < 0) {
goto fail;
}
bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */
}
-static inline int cloop_read_block(BlockDriverState *bs, int block_num)
+static int coroutine_fn GRAPH_RDLOCK
+cloop_read_block(BlockDriverState *bs, int block_num)
{
BDRVCloopState *s = bs->opaque;
int ret;
uint32_t bytes = s->offsets[block_num + 1] - s->offsets[block_num];
- ret = bdrv_pread(bs->file, s->offsets[block_num],
- s->compressed_block, bytes);
- if (ret != bytes) {
+ ret = bdrv_co_pread(bs->file, s->offsets[block_num], bytes,
+ s->compressed_block, 0);
+ if (ret < 0) {
return -1;
}
return 0;
}
-static int coroutine_fn
-cloop_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
- QEMUIOVector *qiov, int flags)
+static int coroutine_fn GRAPH_RDLOCK
+cloop_co_preadv(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
{
BDRVCloopState *s = bs->opaque;
uint64_t sector_num = offset >> BDRV_SECTOR_BITS;