On 25.10.21 12:17, Emanuele Giuseppe Esposito wrote:
Similarly to the previous patch, split block_int.h
in block_int-io.h and block_int-global-state.h
block_int-common.h contains the structures shared between
the two headers, and the functions that can't be categorized as
I/O or global state.
Assertions are added in the next patch.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
---
blockdev.c | 5 +
include/block/block_int-common.h | 1164 +++++++++++++++++++
include/block/block_int-global-state.h | 319 +++++
include/block/block_int-io.h | 163 +++
include/block/block_int.h | 1478
+-----------------------
5 files changed, 1654 insertions(+), 1475 deletions(-)
create mode 100644 include/block/block_int-common.h
create mode 100644 include/block/block_int-global-state.h
create mode 100644 include/block/block_int-io.h
[...]
diff --git a/include/block/block_int-common.h
b/include/block/block_int-common.h
new file mode 100644
index 0000000000..79a3d801d2
--- /dev/null
+++ b/include/block/block_int-common.h
[...]
+struct BlockDriver {
[...]
+ /**
+ * Try to get @bs's logical and physical block size.
+ * On success, store them in @bsz and return zero.
+ * On failure, return negative errno.
+ */
+ /* I/O API, even though if it's a filter jumps on parent */
I don’t understand this...
+ int (*bdrv_probe_blocksizes)(BlockDriverState *bs, BlockSizes
*bsz);
+ /**
+ * Try to get @bs's geometry (cyls, heads, sectors)
+ * On success, store them in @geo and return 0.
+ * On failure return -errno.
+ * Only drivers that want to override guest geometry implement
this
+ * callback; see hd_geometry_guess().
+ */
+ /* I/O API, even though if it's a filter jumps on parent */
...or this comment. bdrv_probe_blocksizes() and
bdrv_probe_geometry() are in block-global-state.h, so why are these
methods part of the I/O API? (And I’m afraid I can’t parse “even
though if it’s a filter jumps on parent”.)