qemu-e2k/block
Stefan Hajnoczi c21eae1ccc block/blkio: fix module_block.py parsing
When QEMU is built with --enable-modules, the module_block.py script
parses block/*.c to find block drivers that are built as modules. The
script generates a table of block drivers called block_driver_modules[].
This table is used for block driver module loading.

The blkio.c driver uses macros to define its BlockDriver structs. This
was done to avoid code duplication but the module_block.py script is
unable to parse the macro. The result is that libblkio-based block
drivers can be built as modules but will not be found at runtime.

One fix is to make the module_block.py script or build system fancier so
it can parse C macros (e.g. by parsing the preprocessed source code). I
chose not to do this because it raises the complexity of the build,
making future issues harder to debug.

Keep things simple: use the macro to avoid duplicating BlockDriver
function pointers but define .format_name and .protocol_name manually
for each BlockDriver. This way the module_block.py is able to parse the
code.

Also get rid of the block driver name macros (e.g. DRIVER_IO_URING)
because module_block.py cannot parse them either.

Fixes: fd66dbd424 ("blkio: add libblkio block driver")
Reported-by: Qing Wang <qinwang@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20230704123436.187761-1-stefanha@redhat.com
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-07-04 17:28:25 +02:00
..
export vhost-user: fully use new backend/frontend naming 2023-06-26 09:50:00 -04:00
monitor meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
accounting.c
aio_task.c
amend.c
backup.c
blkdebug.c
blkio.c block/blkio: fix module_block.py parsing 2023-07-04 17:28:25 +02:00
blklogwrites.c
blkreplay.c
blkverify.c
block-backend.c block: add blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
block-copy.c
block-gen.h
block-ram-registrar.c
bochs.c bochs: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:24 +02:00
cloop.c cloop: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:27 +02:00
commit.c blockjob: Adhere to rate limit even when reentered early 2023-05-19 19:12:12 +02:00
copy-before-write.c copy-before-write: Fix open with child in iothread 2023-05-30 17:29:35 +02:00
copy-before-write.h
copy-on-read.c
copy-on-read.h
coroutines.h
create.c
crypto.c
crypto.h
curl.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
dirty-bitmap.c
dmg-bz2.c
dmg-lzfse.c
dmg.c dmg: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:28 +02:00
dmg.h
file-posix.c file-posix: remove incorrect coroutine_fn calls 2023-06-28 09:46:14 +02:00
file-win32.c
filter-compress.c
gluster.c cutils: Adjust signature of parse_uint[_full] 2023-06-02 12:27:19 -05:00
graph-lock.c Revert "graph-lock: Disable locking for now" 2023-06-28 08:46:26 +02:00
io_uring.c block/io_uring: convert to blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
io.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
iscsi-opts.c
iscsi.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
linux-aio.c block/linux-aio: convert to blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
meson.build meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
mirror.c mirror: Hold main AioContext lock for calling bdrv_open_backing_file() 2023-05-30 17:21:23 +02:00
nbd.c bulk: Remove pointless QOM casts 2023-06-05 20:48:34 +02:00
nfs.c cutils: Adjust signature of parse_uint[_full] 2023-06-02 12:27:19 -05:00
null.c
nvme.c block/nvme: convert to blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
parallels-ext.c
parallels.c block: use bdrv_co_getlength in coroutine context 2023-06-28 09:46:33 +02:00
parallels.h
plug.c block: add blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
preallocate.c
progress_meter.c
qapi-sysemu.c block: Take main AioContext lock when calling bdrv_open() 2023-05-30 17:21:23 +02:00
qapi.c
qcow2-bitmap.c qcow2: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:32 +02:00
qcow2-cache.c
qcow2-cluster.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
qcow2-refcount.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
qcow2-snapshot.c
qcow2-threads.c
qcow2.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
qcow2.h qcow2: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:32 +02:00
qcow.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
qed-check.c qed: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:20 +02:00
qed-cluster.c
qed-l2-cache.c
qed-table.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
qed.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
qed.h
quorum.c
raw-format.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
rbd.c
replication.c
reqlist.c
snapshot-access.c
snapshot.c
ssh.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
stream.c blockjob: Adhere to rate limit even when reentered early 2023-05-19 19:12:12 +02:00
throttle-groups.c
throttle.c
trace-events block/io_uring: convert to blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
trace.h
vdi.c
vhdx-endian.c
vhdx-log.c vhdx: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:30 +02:00
vhdx.c vhdx: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:30 +02:00
vhdx.h vhdx: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:30 +02:00
vmdk.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
vpc.c vpc: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:23 +02:00
vvfat.c
win32-aio.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
write-threshold.c