*/
#include "qemu/osdep.h"
+#include "block/block-io.h"
#include "block/block_int.h"
#include "qemu/module.h"
#include "qapi/error.h"
static int compress_open(BlockDriverState *bs, QDict *options, int flags,
Error **errp)
{
- bs->file = bdrv_open_child(NULL, options, "file", bs, &child_file, false,
- errp);
- if (!bs->file) {
- return -EINVAL;
+ int ret = bdrv_open_file_child(NULL, options, "file", bs, errp);
+ if (ret < 0) {
+ return ret;
}
if (!bs->file->bs->drv || !block_driver_can_compress(bs->file->bs->drv)) {
}
-static int64_t compress_getlength(BlockDriverState *bs)
+static int64_t coroutine_fn GRAPH_RDLOCK
+compress_co_getlength(BlockDriverState *bs)
{
- return bdrv_getlength(bs->file->bs);
+ return bdrv_co_getlength(bs->file->bs);
}
-static int coroutine_fn compress_co_preadv_part(BlockDriverState *bs,
- uint64_t offset, uint64_t bytes,
- QEMUIOVector *qiov,
- size_t qiov_offset,
- int flags)
+static int coroutine_fn GRAPH_RDLOCK
+compress_co_preadv_part(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, size_t qiov_offset,
+ BdrvRequestFlags flags)
{
return bdrv_co_preadv_part(bs->file, offset, bytes, qiov, qiov_offset,
flags);
}
-static int coroutine_fn compress_co_pwritev_part(BlockDriverState *bs,
- uint64_t offset,
- uint64_t bytes,
- QEMUIOVector *qiov,
- size_t qiov_offset, int flags)
+static int coroutine_fn GRAPH_RDLOCK
+compress_co_pwritev_part(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, size_t qiov_offset,
+ BdrvRequestFlags flags)
{
return bdrv_co_pwritev_part(bs->file, offset, bytes, qiov, qiov_offset,
flags | BDRV_REQ_WRITE_COMPRESSED);
}
-static int coroutine_fn compress_co_pwrite_zeroes(BlockDriverState *bs,
- int64_t offset, int bytes,
- BdrvRequestFlags flags)
+static int coroutine_fn GRAPH_RDLOCK
+compress_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int64_t bytes,
+ BdrvRequestFlags flags)
{
return bdrv_co_pwrite_zeroes(bs->file, offset, bytes, flags);
}
-static int coroutine_fn compress_co_pdiscard(BlockDriverState *bs,
- int64_t offset, int bytes)
+static int coroutine_fn GRAPH_RDLOCK
+compress_co_pdiscard(BlockDriverState *bs, int64_t offset, int64_t bytes)
{
return bdrv_co_pdiscard(bs->file, offset, bytes);
}
-static void compress_refresh_limits(BlockDriverState *bs, Error **errp)
+static void GRAPH_RDLOCK
+compress_refresh_limits(BlockDriverState *bs, Error **errp)
{
BlockDriverInfo bdi;
int ret;
}
-static void compress_eject(BlockDriverState *bs, bool eject_flag)
+static void coroutine_fn GRAPH_RDLOCK
+compress_co_eject(BlockDriverState *bs, bool eject_flag)
{
- bdrv_eject(bs->file->bs, eject_flag);
+ bdrv_co_eject(bs->file->bs, eject_flag);
}
-static void compress_lock_medium(BlockDriverState *bs, bool locked)
+static void coroutine_fn GRAPH_RDLOCK
+compress_co_lock_medium(BlockDriverState *bs, bool locked)
{
- bdrv_lock_medium(bs->file->bs, locked);
+ bdrv_co_lock_medium(bs->file->bs, locked);
}
.format_name = "compress",
.bdrv_open = compress_open,
- .bdrv_child_perm = bdrv_filter_default_perms,
+ .bdrv_child_perm = bdrv_default_perms,
- .bdrv_getlength = compress_getlength,
+ .bdrv_co_getlength = compress_co_getlength,
.bdrv_co_preadv_part = compress_co_preadv_part,
.bdrv_co_pwritev_part = compress_co_pwritev_part,
.bdrv_co_pdiscard = compress_co_pdiscard,
.bdrv_refresh_limits = compress_refresh_limits,
- .bdrv_eject = compress_eject,
- .bdrv_lock_medium = compress_lock_medium,
-
- .bdrv_co_block_status = bdrv_co_block_status_from_file,
+ .bdrv_co_eject = compress_co_eject,
+ .bdrv_co_lock_medium = compress_co_lock_medium,
- .has_variable_length = true,
.is_filter = true,
};