Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- virtio-blk: Multiqueue support (configurable iothread per queue)
- Made NBD export and hw/scsi thread-sa

Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- virtio-blk: Multiqueue support (configurable iothread per queue)
- Made NBD export and hw/scsi thread-safe without AioContext lock
- Fix crash when loading snapshot on inactive node

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# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6

* tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (33 commits)
virtio-blk: add iothread-vq-mapping parameter
qdev: add IOThreadVirtQueueMappingList property type
qdev-properties: alias all object class properties
string-output-visitor: show structs as "<omitted>"
block-coroutine-wrapper: use qemu_get_current_aio_context()
block: remove outdated AioContext locking comments
job: remove outdated AioContext locking comments
scsi: remove outdated AioContext lock comment
docs: remove AioContext lock from IOThread docs
aio: remove aio_context_acquire()/aio_context_release() API
aio-wait: draw equivalence between AIO_WAIT_WHILE() and AIO_WAIT_WHILE_UNLOCKED()
scsi: remove AioContext locking
block: remove bdrv_co_lock()
block: remove AioContext locking
graph-lock: remove AioContext locking
aio: make aio_context_acquire()/aio_context_release() a no-op
tests: remove aio_context_acquire() tests
scsi: assert that callbacks run in the correct AioContext
virtio-scsi: replace AioContext lock with tmf_bh_lock
dma-helpers: don't lock AioContext in dma_blk_cb()
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

block: remove AioContext locking

This is the big patch that removes
aio_context_acquire()/aio_context_release() from the block layer and
affected block layer users.

There isn't a clean way to split

block: remove AioContext locking

This is the big patch that removes
aio_context_acquire()/aio_context_release() from the block layer and
affected block layer users.

There isn't a clean way to split this patch and the reviewers are likely
the same group of people, so I decided to do it in one patch.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-ID: <20231205182011.1976568-7-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

Merge tag 'pull-shadow-2023-09-29' of https://repo.or.cz/qemu/armbru into staging

-Wshadow=local patches patches for 2023-09-29

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Merge tag 'pull-shadow-2023-09-29' of https://repo.or.cz/qemu/armbru into staging

-Wshadow=local patches patches for 2023-09-29

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# gpg: Signature made Fri 29 Sep 2023 04:10:35 EDT
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* tag 'pull-shadow-2023-09-29' of https://repo.or.cz/qemu/armbru: (56 commits)
disas/m68k: clean up local variable shadowing
hw/nvme: Clean up local variable shadowing in nvme_ns_init()
softmmu/device_tree: Fixup local variables shadowing
target/riscv: vector_helper: Fixup local variables shadowing
target/riscv: cpu: Fixup local variables shadowing
hw/riscv: opentitan: Fixup local variables shadowing
qemu-nbd: changes towards enabling -Wshadow=local
seccomp: avoid shadowing of 'action' variable
crypto: remove shadowed 'ret' variable
intel_iommu: Fix shadow local variables on "size"
aspeed/timer: Clean up local variable shadowing
aspeed/i3c: Rename variable shadowing a local
aspeed: Clean up local variable shadowing
aspeed/i2c: Clean up local variable shadowing
hw/arm/smmuv3-internal.h: Don't use locals in statement macros
hw/arm/smmuv3.c: Avoid shadowing variable
hw/misc/arm_sysctl.c: Avoid shadowing local variable
hw/intc/arm_gicv3_its: Avoid shadowing variable in do_process_its_cmd()
hw/acpi: changes towards enabling -Wshadow=local
test-throttle: don't shadow 'index' variable in do_test_accounting()
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

block/dirty-bitmap: Clean up local variable shadowing

Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Tracked down with -Wshadow=local.
Cl

block/dirty-bitmap: Clean up local variable shadowing

Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Tracked down with -Wshadow=local.
Clean up: rename both the pair of parameters and the pair of local
variables. While there, move the local variables to function scope.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230921121312.1301864-5-armbru@redhat.com>

show more ...

Merge tag 'pull-include-2023-01-20' of https://repo.or.cz/qemu/armbru into staging

Header cleanup patches for 2023-01-20

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Merge tag 'pull-include-2023-01-20' of https://repo.or.cz/qemu/armbru into staging

Header cleanup patches for 2023-01-20

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# gpg: Signature made Fri 20 Jan 2023 06:41:42 GMT
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* tag 'pull-include-2023-01-20' of https://repo.or.cz/qemu/armbru:
include/hw/ppc include/hw/pci-host: Drop extra typedefs
include/hw/ppc: Don't include hw/pci-host/pnv_phb.h from pnv.h
include/hw/ppc: Supply a few missing includes
include/hw/ppc: Split pnv_chip.h off pnv.h
include/hw/block: Include hw/block/block.h where needed
hw/sparc64/niagara: Use blk_name() instead of open-coding it
include/block: Untangle inclusion loops
coroutine: Use Coroutine typedef name instead of structure tag
coroutine: Split qemu/coroutine-core.h off qemu/coroutine.h
coroutine: Clean up superfluous inclusion of qemu/lockable.h
coroutine: Move coroutine_fn to qemu/osdep.h, trim includes
coroutine: Clean up superfluous inclusion of qemu/coroutine.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

include/block: Untangle inclusion loops

We have two inclusion loops:

block/block.h
-> block/block-global-state.h
-> block/block-common.h
-> block/blockjob.h
-> block/block.h

include/block: Untangle inclusion loops

We have two inclusion loops:

block/block.h
-> block/block-global-state.h
-> block/block-common.h
-> block/blockjob.h
-> block/block.h

block/block.h
-> block/block-io.h
-> block/block-common.h
-> block/blockjob.h
-> block/block.h

I believe these go back to Emanuele's reorganization of the block API,
merged a few months ago in commit d7e2fe4aac8.

Fortunately, breaking them is merely a matter of deleting unnecessary
includes from headers, and adding them back in places where they are
now missing.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221221133551.3967339-2-armbru@redhat.com>

show more ...

Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- Add vduse-blk export
- Dirty bitmaps: Fix and improve bitmap merge
- gluster: correctly set max_pdiscard
-

Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- Add vduse-blk export
- Dirty bitmaps: Fix and improve bitmap merge
- gluster: correctly set max_pdiscard
- rbd: report a better error when namespace does not exist
- aio_wait_kick: add missing memory barrier
- Code cleanups

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# gpg: Signature made Fri 24 Jun 2022 08:07:17 AM PDT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]

* tag 'for-upstream' of git://repo.or.cz/qemu/kevin:
vduse-blk: Add name option
vduse-blk: Add serial option
nbd: Drop dead code spotted by Coverity
aio_wait_kick: add missing memory barrier
block/gluster: correctly set max_pdiscard
block/rbd: report a better error when namespace does not exist
qsd: document vduse-blk exports
libvduse: Add support for reconnecting
vduse-blk: Add vduse-blk resize support
vduse-blk: Implement vduse-blk export
libvduse: Add VDUSE (vDPA Device in Userspace) library
linux-headers: Add vduse.h
block/export: Abstract out the logic of virtio-blk I/O process
block/export: Fix incorrect length passed to vu_queue_push()
block: Support passing NULL ops to blk_set_dev_ops()
block: simplify handling of try to merge different sized bitmaps
block: improve block_dirty_bitmap_merge(): don't allocate extra bitmap
block: block_dirty_bitmap_merge(): fix error path
block: get rid of blk->guest_block_size
block: drop unused bdrv_co_drain() API

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

block: improve block_dirty_bitmap_merge(): don't allocate extra bitmap

We don't need extra bitmap. All we need is to backup the original
bitmap when we do first merge. So, drop extra temporary bitma

block: improve block_dirty_bitmap_merge(): don't allocate extra bitmap

We don't need extra bitmap. All we need is to backup the original
bitmap when we do first merge. So, drop extra temporary bitmap and work
directly with target and backup.

Still to keep old semantics, that on failure target is unchanged and
user don't need to restore, we need a local_backup variable and do
restore ourselves on failure path.

Signed-off-by: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
Message-Id: <20220517111206.23585-3-v.sementsov-og@mail.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

block: block_dirty_bitmap_merge(): fix error path

At the end we ignore failure of bdrv_merge_dirty_bitmap() and report
success. And still set errp. That's wrong.

Signed-off-by: Vladimir Sementsov-O

block: block_dirty_bitmap_merge(): fix error path

At the end we ignore failure of bdrv_merge_dirty_bitmap() and report
success. And still set errp. That's wrong.

Signed-off-by: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20220517111206.23585-2-v.sementsov-og@mail.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

Merge tag 'pull-nbd-2022-04-26' of https://repo.or.cz/qemu/ericb into staging

nbd patches for 2022-04-26

- Paolo Bonzini: thread-safety improvements to NBD client
- Vladimir Sementsov-Ogievsky: fin

Merge tag 'pull-nbd-2022-04-26' of https://repo.or.cz/qemu/ericb into staging

nbd patches for 2022-04-26

- Paolo Bonzini: thread-safety improvements to NBD client
- Vladimir Sementsov-Ogievsky: finer-grained selection of bitmaps during
nbd-export

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# gpg: Signature made Tue 26 Apr 2022 01:12:00 PM PDT
# gpg: using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg: aka "[jpeg image of size 6874]" [full]

* tag 'pull-nbd-2022-04-26' of https://repo.or.cz/qemu/ericb:
nbd: document what is protected by the CoMutexes
nbd: take receive_mutex when reading requests[].receiving
nbd: move s->state under requests_lock
nbd: code motion and function renaming
nbd: use a QemuMutex to synchronize yanking, reconnection and coroutines
nbd: keep send_mutex/free_sema handling outside nbd_co_do_establish_connection
nbd: remove peppering of nbd_client_connected
nbd: mark more coroutine_fns
nbd: safeguard against waking up invalid coroutine
iotests/223: check new possibility of exporting bitmaps by node/name
qapi: nbd-export: allow select bitmaps by node/name pair
qapi: rename BlockDirtyBitmapMergeSource to BlockDirtyBitmapOrStr

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

qapi: rename BlockDirtyBitmapMergeSource to BlockDirtyBitmapOrStr

Rename the type to be reused. Old name is "what is it for". To be
natively reused for other needs, let's name it exactly "what is it

qapi: rename BlockDirtyBitmapMergeSource to BlockDirtyBitmapOrStr

Rename the type to be reused. Old name is "what is it for". To be
natively reused for other needs, let's name it exactly "what is it".

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org>
Message-Id: <20220314213226.362217-2-v.sementsov-og@mail.ru>
[eblake: Adjust S-o-b to Vladimir's new email, with permission]
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/hreitz-gitlab/tags/pull-block-2022-03-07' into staging

Block patches for 7.0-rc0:
- New fleecing backup scheme
- iotest fixes
- Fixes for the curl block driver

Merge remote-tracking branch 'remotes/hreitz-gitlab/tags/pull-block-2022-03-07' into staging

Block patches for 7.0-rc0:
- New fleecing backup scheme
- iotest fixes
- Fixes for the curl block driver
- Fix for the preallocate block driver
- IDE fix for zero-length TRIM requests

# gpg: Signature made Mon 07 Mar 2022 10:33:31 GMT
# gpg: using RSA key CB62D7A0EE3829E45F004D34A1FA40D098019CDF
# gpg: issuer "hreitz@redhat.com"
# gpg: Good signature from "Hanna Reitz <hreitz@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: CB62 D7A0 EE38 29E4 5F00 4D34 A1FA 40D0 9801 9CDF

* remotes/hreitz-gitlab/tags/pull-block-2022-03-07: (23 commits)
iotests/image-fleecing: test push backup with fleecing
iotests/image-fleecing: add test case with bitmap
iotests.py: add qemu_io_pipe_and_status()
iotests/image-fleecing: add test-case for fleecing format node
block: copy-before-write: realize snapshot-access API
block: introduce snapshot-access block driver
block/io: introduce block driver snapshot-access API
block/reqlist: add reqlist_wait_all()
block/dirty-bitmap: introduce bdrv_dirty_bitmap_status()
block/reqlist: reqlist_find_conflict(): use ranges_overlap()
block: intoduce reqlist
block/block-copy: add block_copy_reset()
block/copy-before-write: add bitmap open parameter
block/block-copy: block_copy_state_new(): add bitmap parameter
block/dirty-bitmap: bdrv_merge_dirty_bitmap(): add return value
block/block-copy: move copy_bitmap initialization to block_copy_state_new()
iotests: Write test output to TEST_DIR
tests/qemu-iotests/testrunner: Quote "case not run" lines in TAP mode
tests/qemu-iotests/040: Skip TestCommitWithFilters without 'throttle'
block: fix preallocate filter: don't do unaligned preallocate requests
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

block/dirty-bitmap: bdrv_merge_dirty_bitmap(): add return value

That simplifies handling failure in existing code and in further new
usage of bdrv_merge_dirty_bitmap().

Signed-off-by: Vladimir Seme

block/dirty-bitmap: bdrv_merge_dirty_bitmap(): add return value

That simplifies handling failure in existing code and in further new
usage of bdrv_merge_dirty_bitmap().

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220303194349.2304213-3-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

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Merge remote-tracking branch 'remotes/kwolf-gitlab/tags/for-upstream' into staging

Block layer patches

- qemu-storage-daemon: Add --daemonize
- Fix x-blockdev-amend and block node activation code w

Merge remote-tracking branch 'remotes/kwolf-gitlab/tags/for-upstream' into staging

Block layer patches

- qemu-storage-daemon: Add --daemonize
- Fix x-blockdev-amend and block node activation code which incorrectly
executed code in the iothread that must run in the main thread.
- Add macros for coroutine-safe TLS variables (required for correctness
with LTO)
- Fix crashes with concurrent I/O and bdrv_refresh_limits()
- Split block APIs in global state and I/O
- iotests: Don't refuse to run at all without GNU sed, just skip tests
that need it

# gpg: Signature made Fri 04 Mar 2022 17:18:31 GMT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6

* remotes/kwolf-gitlab/tags/for-upstream: (50 commits)
block/amend: Keep strong reference to BDS
block/amend: Always call .bdrv_amend_clean()
tests/qemu-iotests: Rework the checks and spots using GNU sed
iotests/graph-changes-while-io: New test
iotests: Allow using QMP with the QSD
block: Make bdrv_refresh_limits() non-recursive
job.h: assertions in the callers of JobDriver function pointers
job.h: split function pointers in JobDriver
block-backend-common.h: split function pointers in BlockDevOps
block_int-common.h: assertions in the callers of BdrvChildClass function pointers
block_int-common.h: split function pointers in BdrvChildClass
block_int-common.h: assertions in the callers of BlockDriver function pointers
block_int-common.h: split function pointers in BlockDriver
block/coroutines: I/O and "I/O or GS" API
block/copy-before-write.h: global state API + assertions
include/block/snapshot: global state API + assertions
assertions for blockdev.h global state API
include/sysemu/blockdev.h: global state API
assertions for blockjob.h global state API
include/block/blockjob.h: global state API
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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assertions for block_int global state API

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-13-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@

assertions for block_int global state API

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-13-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

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Merge remote-tracking branch 'remotes/ericb/tags/pull-bitmaps-2020-05-18-v3' into staging

bitmaps patches for 2020-05-18

- update bitmaps maintainers
- add 'qemu-img bitmap' subcommand

# gpg: Sign

Merge remote-tracking branch 'remotes/ericb/tags/pull-bitmaps-2020-05-18-v3' into staging

bitmaps patches for 2020-05-18

- update bitmaps maintainers
- add 'qemu-img bitmap' subcommand

# gpg: Signature made Tue 19 May 2020 18:53:59 BST
# gpg: using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg: aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-bitmaps-2020-05-18-v3:
qemu-img: Add bitmap sub-command
blockdev: Split off basic bitmap operations for qemu-img
blockdev: Promote several bitmap functions to non-static
block: Make it easier to learn which BDS support bitmaps
qemu-img: Fix stale comments on doc location
docs: Sort sections on qemu-img subcommand parameters
bitmaps: Update maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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blockdev: Split off basic bitmap operations for qemu-img

Upcoming patches want to add some basic bitmap manipulation abilities
to qemu-img. But blockdev.o is too heavyweight to link into qemu-img
(

blockdev: Split off basic bitmap operations for qemu-img

Upcoming patches want to add some basic bitmap manipulation abilities
to qemu-img. But blockdev.o is too heavyweight to link into qemu-img
(among other things, it would drag in block jobs and transaction
support - qemu-img does offline manipulation, where atomicity is less
important because there are no concurrent modifications to compete
with), so it's time to split off the bare bones of what we will need
into a new file block/monitor/bitmap-qmp-cmds.o.

This is sufficient to expose 6 QMP commands for use by qemu-img (add,
remove, clear, enable, disable, merge), as well as move the three
helper functions touched in the previous patch. Regarding
MAINTAINERS, the new file is automatically part of block core, but
also makes sense as related to other dirty bitmap files.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200513011648.166876-6-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

show more ...