}
ctx = bdrv_get_aio_context(bs);
- src = blk_new(ctx, BLK_PERM_CONSISTENT_READ, BLK_PERM_ALL);
+ /* WRITE_UNCHANGED is required for bdrv_make_empty() */
+ src = blk_new(ctx, BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE_UNCHANGED,
+ BLK_PERM_ALL);
backing = blk_new(ctx, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL);
ret = blk_insert_bs(src, bs, &local_err);
}
}
- if (drv->bdrv_make_empty) {
- ret = drv->bdrv_make_empty(bs);
- if (ret < 0) {
- goto ro_cleanup;
- }
- blk_flush(src);
+ ret = blk_make_empty(src, NULL);
+ /* Ignore -ENOTSUP */
+ if (ret < 0 && ret != -ENOTSUP) {
+ goto ro_cleanup;
}
+ blk_flush(src);
+
/*
* Make sure all data we wrote to the backing device is actually
* stable on disk.
goto unref_backing;
}
- if (!drop && bs->drv->bdrv_make_empty) {
- ret = bs->drv->bdrv_make_empty(bs);
- if (ret) {
- error_setg_errno(&local_err, -ret, "Could not empty %s",
- filename);
+ if (!drop) {
+ BlockBackend *old_backing_blk;
+
+ old_backing_blk = blk_new_with_bs(bs, BLK_PERM_WRITE, BLK_PERM_ALL,
+ &local_err);
+ if (!old_backing_blk) {
+ goto unref_backing;
+ }
+ ret = blk_make_empty(old_backing_blk, &local_err);
+ blk_unref(old_backing_blk);
+ if (ret == -ENOTSUP) {
+ error_free(local_err);
+ local_err = NULL;
+ } else if (ret < 0) {
goto unref_backing;
}
}
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-qemu-img: Could not empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
+qemu-img: Failed to empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
No errors were found on the image.
=== empty_image_prepare ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-qemu-img: Could not empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
+qemu-img: Failed to empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
Leaked cluster 4 refcount=1 reference=0
Leaked cluster 5 refcount=1 reference=0
Repairing cluster 4 refcount=1 reference=0
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-qemu-img: Could not empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
+qemu-img: Failed to empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
ERROR cluster 0 refcount=0 reference=1
ERROR cluster 1 refcount=0 reference=1
ERROR cluster 3 refcount=0 reference=1
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-qemu-img: Could not empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
+qemu-img: Failed to empty blkdebug:TEST_DIR/blkdebug.conf:TEST_DIR/t.IMGFMT: Input/output error
ERROR cluster 0 refcount=0 reference=1
ERROR cluster 1 refcount=0 reference=1
ERROR cluster 3 refcount=0 reference=1