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qemu/block
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Eric Blake a7c18670b4 nbd/client: Accept 64-bit block status chunks 
Once extended mode is enabled, we need to accept 64-bit status replies
(even for replies that don't exceed a 32-bit length).  It is easier to
normalize narrow replies into wide format so that the rest of our code
only has to handle one width.  Although a server is non-compliant if
it sends a 64-bit reply in compact mode, or a 32-bit reply in extended
mode, it is still easy enough to tolerate these mismatches.

In normal execution, we are only requesting "base:allocation" which
never exceeds 32 bits for flag values. But during testing with
x-dirty-bitmap, we can force qemu to connect to some other context
that might have 64-bit status bit; however, we ignore those upper bits
(other than mapping qemu:allocation-depth into something that
'qemu-img map --output=json' can expose), and since that only affects
testing, we really don't bother with checking whether more than the
two least-significant bits are set.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20230925192229.3186470-22-eblake@redhat.com>
2023-10-05 11:02:08 -05:00
..
export block: spelling fixes 2023-09-08 13:08:52 +03:00
monitor block/dirty-bitmap: Clean up local variable shadowing 2023-09-29 08:13:57 +02:00
accounting.c
aio_task.c
amend.c block: Mark BlockDriver callbacks for amend job GRAPH_RDLOCK 2023-05-10 14:16:54 +02:00
backup.c Block layer patches 2023-02-24 15:09:39 +00:00
blkdebug.c blkdebug: add missing coroutine_fn annotation 2023-04-25 13:17:28 +02:00
blkio.c block/blkio: add more comments on the fd passing handling 2023-08-03 11:28:43 -04:00
blklogwrites.c block: Mark bdrv_unref_child() GRAPH_WRLOCK 2023-09-20 17:46:01 +02:00
blkreplay.c block: Mark bdrv_co_refresh_total_sectors() and callers GRAPH_RDLOCK 2023-02-23 19:49:33 +01:00
blkverify.c block: Mark bdrv_unref_child() GRAPH_WRLOCK 2023-09-20 17:46:01 +02:00
block-backend.c Block layer patches 2023-09-21 09:31:28 -04:00
block-copy.c block: spelling fixes 2023-09-08 13:08:52 +03:00
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 block: Mark bdrv_child_perm() GRAPH_RDLOCK 2023-09-20 17:46:01 +02:00
copy-before-write.h
copy-on-read.c block: remove has_variable_length from filters 2023-04-11 16:38:56 +02:00
copy-on-read.h
coroutines.h nbd: Mark nbd_co_do_establish_connection() and callers GRAPH_RDLOCK 2023-05-10 14:16:53 +02:00
create.c block: Call .bdrv_co_create(_opts) unlocked 2023-05-19 19:12:12 +02:00
crypto.c block: Mark bdrv_parent_perms_conflict() and callers GRAPH_RDLOCK 2023-09-20 17:46:01 +02:00
crypto.h
curl.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
dirty-bitmap.c block: Mark bdrv_*_dirty_bitmap() and callers GRAPH_RDLOCK 2023-02-23 19:49:32 +01:00
dmg-bz2.c
dmg-lzfse.c block/dmg: Ignore C99 prototype declaration mismatch from <lzfse.h> 2023-03-30 15:03:36 +02:00
dmg.c dmg: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:28 +02:00
dmg.h block/dmg: Declare a type definition for DMG uncompress function 2023-04-24 13:53:44 -04:00
file-posix.c Block patches 2023-09-21 09:05:10 -04:00
file-win32.c thread-pool: avoid passing the pool parameter every time 2023-04-25 13:17:28 +02:00
filter-compress.c block: remove has_variable_length from filters 2023-04-11 16:38:56 +02:00
gluster.c cutils: Adjust signature of parse_uint[_full] 2023-06-02 12:27:19 -05:00
graph-lock.c block: Introduce bdrv_schedule_unref() 2023-09-20 17:46:01 +02:00
io.c block: mark mixed functions that can suspend 2023-09-26 18:09:08 +02:00
io_uring.c block/io_uring: convert to blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
iscsi-opts.c
iscsi.c block/iscsi: Document why we use raw malloc() 2023-09-08 17:03:09 +02:00
linux-aio.c block: spelling fixes 2023-09-08 13:08:52 +03:00
meson.build block/meson.build: Restore alphabetical order of files 2023-09-08 17:03:09 +02:00
mirror.c block: Mark bdrv_parent_perms_conflict() and callers GRAPH_RDLOCK 2023-09-20 17:46:01 +02:00
nbd.c nbd/client: Accept 64-bit block status chunks 2023-10-05 11:02:08 -05:00
nfs.c cutils: Adjust signature of parse_uint[_full] 2023-06-02 12:27:19 -05:00
null.c
nvme.c block/nvme: invoke blk_io_plug_call() outside q->lock 2023-07-17 09:17:41 -04:00
parallels-ext.c
parallels.c parallels: naive implementation of parallels_co_pwrite_zeroes 2023-09-21 08:49:17 +02:00
parallels.h parallels: collect bitmap of used clusters at open 2023-09-21 08:47:34 +02:00
plug.c block: add blk_io_plug_call() API 2023-06-01 07:34:03 -04:00
preallocate.c preallocate: Don't poll during permission updates 2023-09-20 17:46:00 +02:00
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 block: Remove unnecessary variable in bdrv_block_device_info 2023-09-08 17:03:09 +02:00
qcow.c block: add BDRV_BLOCK_COMPRESSED flag for bdrv_block_status() 2023-09-20 17:46:01 +02:00
qcow2-bitmap.c block/dirty-bitmap: Clean up local variable shadowing 2023-09-29 08:13:57 +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: spelling fixes 2023-09-08 13:08:52 +03:00
qcow2-snapshot.c qcow2: mark various functions as coroutine_fn and GRAPH_RDLOCK 2023-04-25 13:17:28 +02:00
qcow2-threads.c thread-pool: avoid passing the pool parameter every time 2023-04-25 13:17:28 +02:00
qcow2.c block: mark mixed functions that can suspend 2023-09-26 18:09:08 +02:00
qcow2.h qcow2: mark more functions as coroutine_fns and GRAPH_RDLOCK 2023-06-28 09:46:32 +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: mark mixed functions that can suspend 2023-09-26 18:09:08 +02:00
qed.h
quorum.c block: Mark bdrv_add/del_child() and caller GRAPH_WRLOCK 2023-09-20 17:46:01 +02:00
raw-format.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
rbd.c block: Clean up local variable shadowing 2023-09-29 08:13:57 +02:00
replication.c block: Mark bdrv_unref_child() GRAPH_WRLOCK 2023-09-20 17:46:01 +02:00
reqlist.c
snapshot-access.c block: Make more BlockDriver definitions static 2023-09-08 17:03:09 +02:00
snapshot.c block: Mark bdrv_unref_child() GRAPH_WRLOCK 2023-09-20 17:46:01 +02:00
ssh.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
stream.c block: Clean up local variable shadowing 2023-09-29 08:13:57 +02:00
throttle-groups.c block: mark mixed functions that can suspend 2023-09-26 18:09:08 +02:00
throttle.c block/throttle-groups: Use ThrottleDirection instread of bool is_write 2023-08-29 10:49:24 +02:00
trace-events nbd/client: Accept 64-bit block status chunks 2023-10-05 11:02:08 -05:00
trace.h
vdi.c block/vdi: Clean up local variable shadowing 2023-09-29 08:13:57 +02:00
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 block: spelling fixes 2023-09-08 13:08:52 +03:00
vhdx.h block: spelling fixes 2023-09-08 13:08:52 +03:00
vmdk.c block: add BDRV_BLOCK_COMPRESSED flag for bdrv_block_status() 2023-09-20 17:46:01 +02:00
vpc.c block/vpc: Avoid dynamic stack allocation 2023-09-08 17:03:09 +02:00
vvfat.c block: Clean up local variable shadowing 2023-09-29 08:13:57 +02:00
win32-aio.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
write-threshold.c