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stable-7.2
qemu-qemu/util
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Paolo Bonzini 5adcdce946 async: access bottom half flags with qatomic_read 
Running test-aio-multithread under TSAN reveals data races on bh->flags.
Because bottom halves may be scheduled or canceled asynchronously,
without taking a lock, adjust aio_compute_bh_timeout() and aio_ctx_check()
to use a relaxed read to access the flags.

Use an acquire load to ensure that anything that was written prior to
qemu_bh_schedule() is visible.

Closes: https://gitlab.com/qemu-project/qemu/-/issues/2749
Closes: https://gitlab.com/qemu-project/qemu/-/issues/851
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 5142397c79)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2025-10-15 07:35:42 +03:00
..
aio-posix.c
util/event-loop-base: Introduce options to set the thread pool size
2022-05-09 10:43:23 +01:00
aio-posix.h
aio-posix: fix spurious ->poll_ready() callbacks in main loop
2022-03-17 11:23:18 +00:00
aio-wait.c
aio_wait_kick: add missing memory barrier
2022-06-24 17:07:06 +02:00
aio-win32.c
util/aio-win32: Correct the event array size in aio_poll()
2022-11-06 09:48:26 +01:00
aiocb.c
…
async-teardown.c
os-posix: asynchronous teardown for shutdown on Linux
2022-10-31 09:46:34 +01:00
async.c
async: access bottom half flags with qatomic_read
2025-10-15 07:35:42 +03:00
atomic64.c
osdep: Move memalign-related functions to their own header
2022-03-07 13:16:49 +00:00
base64.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
bitmap.c
migration: Use non-atomic ops for clear log bitmap
2022-11-21 11:58:10 +01:00
bitops.c
…
block-helpers.c
block: move logical block size check function to a common utility function
2020-10-23 13:42:16 +01:00
block-helpers.h
block: move logical block size check function to a common utility function
2020-10-23 13:42:16 +01:00
buffer.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
bufferiszero.c
cpuid: use unsigned for max cpuid
2022-02-04 09:07:43 -05:00
cacheflush.c
util/cacheflush: Make first DSB unconditional on aarch64
2025-03-22 10:52:25 +03:00
compatfd.c
util: replace pipe()+cloexec with g_unix_open_pipe()
2022-05-03 15:18:14 +04:00
coroutine-sigaltstack.c
Remove qemu-common.h include from most units
2022-04-06 14:31:55 +02:00
coroutine-ucontext.c
coroutine-ucontext: use QEMU_DEFINE_STATIC_CO_TLS()
2022-05-04 15:55:23 +02:00
coroutine-win32.c
coroutine-win32: use QEMU_DEFINE_STATIC_CO_TLS()
2022-05-04 15:55:23 +02:00
crc32c.c
…
crc-ccitt.c
util: Add CRC16 (CCITT) calculation routines
2021-01-24 20:10:54 +01:00
cutils.c
cutils: Add missing dyld(3) include on macOS
2022-08-12 11:33:52 +01:00
dbus.c
util: add dbus helper unit
2020-01-06 18:41:32 +04:00
drm.c
util/drm: make portable by avoiding struct dirent d_type
2020-07-13 14:36:10 +01:00
envlist.c
Use g_new() & friends where that makes obvious sense
2022-03-21 15:44:44 +01:00
error-report.c
error-report: fix g_date_time_format assertion
2022-04-28 08:51:56 +02:00
error.c
error: make Error **errp const where it is appropriate
2019-12-18 08:36:16 +01:00
event_notifier-posix.c
Replace qemu_pipe() with g_unix_open_pipe()
2022-05-03 15:17:56 +04:00
event_notifier-win32.c
Remove qemu-common.h include from most units
2022-04-06 14:31:55 +02:00
fdmon-epoll.c
aio-posix: fix race between epoll upgrade and aio_set_fd_handler()
2023-04-10 11:16:14 +03:00
fdmon-io_uring.c
aio-posix: fix build failure io_uring 2.2
2022-03-17 11:23:18 +00:00
fdmon-poll.c
fdmon-poll: reset npfd when upgrading to fdmon-epoll
2020-09-23 13:45:52 +01:00
fifo8.c
utils/fifo8: change fatal errors from abort() to assert()
2021-02-07 20:38:20 +00:00
filemonitor-inotify.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
filemonitor-stub.c
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
getauxval.c
util/getauxval: Porting to FreeBSD getauxval feature
2020-06-26 06:45:29 -04:00
guest-random.c
util/guest-random: Fix size arg to tail memcpy
2021-07-09 18:42:46 +02:00
hbitmap.c
block: simplify handling of try to merge different sized bitmaps
2022-06-24 17:07:06 +02:00
hexdump.c
include: move C/util-related declarations to cutils.h
2022-04-06 14:31:43 +02:00
host-utils.c
host-utils: Implemented signed 256-by-128 division
2022-06-20 08:38:58 -03:00
id.c
net: Use id_generate() in the network subsystem, too
2021-03-09 21:47:45 +01:00
int128.c
qemu/int128: addition of div/rem 128-bit operations
2022-01-08 15:46:10 +10:00
iov.c
util: make do_send_recv work with partial send/recv
2022-10-12 19:22:01 +04:00
iova-tree.c
util: accept iova_tree_remove_parameter by value
2022-09-02 10:22:39 +08:00
keyval.c
include: add qemu/keyval.h
2022-04-21 17:03:51 +04:00
lockcnt.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
log.c
util/log: Ignore per-thread flag if global file already there
2022-11-07 16:00:02 -05:00
main-loop.c
async: Add an optional reentrancy guard to the BH API
2023-09-11 10:53:50 +03:00
memalign.c
osdep: Move memalign-related functions to their own header
2022-03-07 13:16:49 +00:00
memfd.c
…
meson.build
qga: Allow building of the guest agent without system emulators or tools
2022-11-11 09:17:45 +01:00
mmap-alloc.c
util/mmap-alloc: Remove qemu_mempath_getpagesize()
2022-08-26 13:34:21 +02:00
module.c
module: Prevent crash by resetting local_err in module_load_qom_all()
2024-09-12 09:20:33 +03:00
notify.c
…
nvdimm-utils.c
Clean up includes
2020-12-10 17:16:44 +01:00
osdep.c
tests/qtest: Use send/recv for socket communication
2022-10-28 11:17:12 +02:00
oslib-posix.c
util: Make qemu_prealloc_mem() optionally consume a ThreadContext
2022-10-27 11:00:56 +02:00
oslib-win32.c
util: Make qemu_prealloc_mem() optionally consume a ThreadContext
2022-10-27 11:00:56 +02:00
path.c
…
qdist.c
…
qemu-co-shared-resource.c
co-shared-resource: protect with a mutex
2021-06-25 14:24:24 +03:00
qemu-co-timeout.c
util: add qemu-co-timeout
2022-06-29 10:56:12 +03:00
qemu-config.c
Revert "s390x/s390-virtio-ccw: add zpcii-disable machine property"
2022-11-08 10:10:57 +01:00
qemu-coroutine-io.c
Remove qemu-common.h include from most units
2022-04-06 14:31:55 +02:00
qemu-coroutine-lock.c
coroutine: add flag to re-queue at front of CoQueue
2022-10-26 14:56:42 -04:00
qemu-coroutine-sleep.c
coroutine-sleep: introduce qemu_co_sleep
2021-05-21 18:22:33 +01:00
qemu-coroutine.c
coroutine: remove incorrect coroutine_fn annotations
2022-10-07 12:11:40 +02:00
qemu-option.c
qemu-option: Allow deleting opts during qemu_opts_foreach()
2021-10-15 16:11:22 +02:00
qemu-print.c
monitor: Use getter/setter functions for cur_mon
2020-10-09 07:08:19 +02:00
qemu-progress.c
include: move progress API to qemu-progress.h
2022-04-06 14:31:43 +02:00
qemu-sockets.c
Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging
2022-10-30 18:30:01 -04:00
qemu-thread-common.h
…
qemu-thread-posix.c
util: Introduce qemu_thread_set_affinity() and qemu_thread_get_affinity()
2022-10-27 11:00:36 +02:00
qemu-thread-win32.c
util: Introduce qemu_thread_set_affinity() and qemu_thread_get_affinity()
2022-10-27 11:00:36 +02:00
qemu-timer-common.c
semihosting: Implement SYS_ELAPSED and SYS_TICKFREQ
2021-01-18 10:05:06 +00:00
qemu-timer.c
qemu-timer: Skip empty timer lists before locking in qemu_clock_deadline_ns_all
2022-06-21 09:24:34 -07:00
qht.c
osdep: Move memalign-related functions to their own header
2022-03-07 13:16:49 +00:00
qsp.c
qemu/atomic: Add aligned_{int64,uint64}_t types
2021-07-21 07:45:38 -10:00
range.c
…
rcu.c
rcu: use coroutine TLS macros
2022-03-04 18:14:40 +01:00
readline.c
readline: Fix possible array index out of bounds in readline_hist_add()
2021-01-04 11:13:39 +00:00
selfmap.c
util/selfmap: Discard mapping on error
2021-07-26 07:06:49 -10:00
stats64.c
qemu/atomic.h: rename atomic_ to qatomic_
2020-09-23 16:07:44 +01:00
sys_membarrier.c
…
systemd.c
tools: Fix use of fcntl(F_SETFD) during socket activation
2020-05-04 14:54:35 -05:00
thread-context.c
util: Add write-only "node-affinity" property for ThreadContext
2022-10-27 11:00:50 +02:00
thread-pool.c
thread-pool: signal "request_cond" while locked
2023-08-02 17:21:20 +03:00
throttle.c
Remove superfluous timer_del() calls
2021-01-08 15:13:38 +00:00
timed-average.c
…
trace-events
async: Add an optional reentrancy guard to the BH API
2023-09-11 10:53:50 +03:00
trace.h
trace: switch position of headers to what Meson requires
2020-08-21 06:18:24 -04:00
transactions.c
transactions: Invoke clean() after everything else
2021-11-16 09:43:44 +01:00
unicode.c
…
uri.c
util/uri: do not check argument of uri_free()
2021-07-09 12:26:05 +02:00
userfaultfd.c
migration: introduce UFFD-WP low-level interface helpers
2021-02-08 11:19:51 +00:00
uuid.c
…
vfio-helpers.c
util/vfio-helpers: Use g_file_read_link()
2023-05-28 12:02:26 +03:00
vhost-user-server.c
util: rename qemu_*block() socket functions
2022-05-03 15:53:20 +04:00
yank.c
yank: Remove dependency on qiochannel
2021-04-01 15:27:44 +04:00