OpenE2K/qemu-e2k
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Stefan Hajnoczi 23c983c8f6 block: remove outdated AioContext locking comments 
The AioContext lock no longer exists.

There is one noteworthy change:

  - * More specifically, these functions use BDRV_POLL_WHILE(bs), which
  - * requires the caller to be either in the main thread and hold
  - * the BlockdriverState (bs) AioContext lock, or directly in the
  - * home thread that runs the bs AioContext. Calling them from
  - * another thread in another AioContext would cause deadlocks.
  + * More specifically, these functions use BDRV_POLL_WHILE(bs), which requires
  + * the caller to be either in the main thread or directly in the home thread
  + * that runs the bs AioContext. Calling them from another thread in another
  + * AioContext would cause deadlocks.

I am not sure whether deadlocks are still possible. Maybe they have just
moved to the fine-grained locks that have replaced the AioContext. Since
I am not sure if the deadlocks are gone, I have kept the substance
unchanged and just removed mention of the AioContext.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-ID: <20231205182011.1976568-15-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-12-21 22:49:27 +01:00
..
export block: remove outdated AioContext locking comments 2023-12-21 22:49:27 +01:00
monitor block: remove AioContext locking 2023-12-21 22:49:27 +01:00
accounting.c block: add missed block_acct_setup with new block device init procedure 2022-09-30 18:42:34 +02:00
aio_task.c block/aio_task: assert max_busy_tasks is greater than 0 2021-10-05 18:56:41 +02:00
amend.c block: Mark BlockDriver callbacks for amend job GRAPH_RDLOCK 2023-05-10 14:16:54 +02:00
backup.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
blkdebug.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
blkio.c util/defer-call: move defer_call() to util/ 2023-10-31 15:41:42 +01:00
blklogwrites.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
blkreplay.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
blkverify.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
block-backend.c block: remove outdated AioContext locking comments 2023-12-21 22:49:27 +01:00
block-copy.c block: Mark bdrv_chain_contains() and callers GRAPH_RDLOCK 2023-11-07 19:14:19 +01:00
block-gen.h block-coroutine-wrapper.py: support also basic return types 2022-12-15 16:07:43 +01:00
block-ram-registrar.c block: add BlockRAMRegistrar 2022-10-26 14:56:42 -04:00
bochs.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
cloop.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
commit.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
copy-before-write.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
copy-before-write.h block/copy-before-write.h: global state API + assertions 2022-03-04 18:18:25 +01:00
copy-on-read.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
copy-on-read.h block: Mark bdrv_(un)freeze_backing_chain() and callers GRAPH_RDLOCK 2023-11-07 19:14:19 +01:00
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: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
crypto.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
curl.c block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +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 Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
dmg-lzfse.c block/dmg: Ignore C99 prototype declaration mismatch from <lzfse.h> 2023-03-30 15:03:36 +02:00
dmg.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
dmg.h block/dmg: Declare a type definition for DMG uncompress function 2023-04-24 13:53:44 -04:00
file-posix.c block/file-posix: set up Linux AIO and io_uring in the current thread 2023-12-21 22:49:27 +01:00
file-win32.c thread-pool: avoid passing the pool parameter every time 2023-04-25 13:17:28 +02:00
filter-compress.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
gluster.c block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
graph-lock.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
io_uring.c virtio: use defer_call() in virtio_irqfd_notify() 2023-10-31 15:42:14 +01:00
io.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
iscsi-opts.c modules: add block module annotations 2021-07-09 18:20:27 +02:00
iscsi.c block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
linux-aio.c virtio: use defer_call() in virtio_irqfd_notify() 2023-10-31 15:42:14 +01:00
meson.build util/defer-call: move defer_call() to util/ 2023-10-31 15:41:42 +01:00
mirror.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
nbd.c block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
nfs.c block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
null.c block: Convert bdrv_get_allocated_file_size() to co_wrapper 2023-02-01 16:52:32 +01:00
nvme.c block/nvme: nvme_process_completion() fix bound for cid 2023-11-06 15:00:28 +00:00
parallels-ext.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
parallels.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
parallels.h block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
preallocate.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
progress_meter.c coroutine: Clean up superfluous inclusion of qemu/lockable.h 2023-01-19 10:18:28 +01:00
qapi-sysemu.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
qapi.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
qcow2-bitmap.c qcow2: Take locks for accessing bs->file 2023-11-08 17:56:17 +01:00
qcow2-cache.c qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
qcow2-cluster.c qcow2: Take locks for accessing bs->file 2023-11-08 17:56:17 +01:00
qcow2-refcount.c qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
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 graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
qcow2.h qcow2: Take locks for accessing bs->file 2023-11-08 17:56:17 +01:00
qcow.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
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: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-l2-cache.c osdep: Move memalign-related functions to their own header 2022-03-07 13:16:49 +00:00
qed-table.c block: use bdrv_co_debug_event in coroutine context 2023-06-28 09:46:34 +02:00
qed.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
qed.h block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
quorum.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
raw-format.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
rbd.c block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
replication.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
reqlist.c block/reqlist: add reqlist_wait_all() 2022-03-07 09:33:30 +01:00
snapshot-access.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
snapshot.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00
ssh.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
stream.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
throttle-groups.c block: mark mixed functions that can suspend 2023-09-26 18:09:08 +02:00
throttle.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
trace-events nbd/client: Accept 64-bit block status chunks 2023-10-05 11:02:08 -05:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vdi.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
vhdx-endian.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
vhdx-log.c vhdx: Take locks for accessing bs->file 2023-11-08 17:56:18 +01:00
vhdx.c vhdx: Take locks for accessing bs->file 2023-11-08 17:56:18 +01:00
vhdx.h vhdx: Take locks for accessing bs->file 2023-11-08 17:56:18 +01:00
vmdk.c graph-lock: remove AioContext locking 2023-12-21 22:49:27 +01:00
vpc.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
vvfat.c cpr: relax blockdev migration blockers 2023-11-01 16:13:59 +01:00
win32-aio.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
write-threshold.c block: remove AioContext locking 2023-12-21 22:49:27 +01:00