mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
64807cd779
qemu/include/qemu
History
Jeff Cody 6133b39f3c coroutine: abort if we try to schedule or enter a pending coroutine 
The previous patch fixed a race condition, in which there were
coroutines being executing doubly, or after coroutine deletion.

We can detect common scenarios when this happens, and print an error
message and abort before we corrupt memory / data, or segfault.

This patch will abort if an attempt to enter a coroutine is made while
it is currently pending execution, either in a specific AioContext bh,
or pending execution via a timer.  It will also abort if a coroutine
is scheduled, before a prior scheduled run has occurred.

We cannot rely on the existing co->caller check for recursive re-entry
to catch this, as the coroutine may run and exit with
COROUTINE_TERMINATE before the scheduled coroutine executes.

(This is the scenario that was occurring and fixed in the previous
patch).

This patch also re-orders the Coroutine struct elements in an attempt to
optimize caching.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-11-21 11:58:07 -05:00
..
acl.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
atomic.h memory: avoid "resurrection" of dead FlatViews 2017-09-21 23:19:37 +02:00
base64.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
bcd.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
bitmap.h bitmap: provide to_le/from_le helpers 2017-09-22 14:11:25 +02:00
bitops.h vnc: replace hweight_long() with ctpopl() 2017-05-12 12:36:02 +02:00
bswap.h bswap.h: Document cpu_to_* and *_to_cpu conversion functions 2016-07-12 15:08:53 +01:00
buffer.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
compiler.h use _Static_assert in QEMU_BUILD_BUG_ON 2017-05-05 12:09:59 +02:00
config-file.h arch_init: Remove unnecessary default_config_files table 2017-01-23 21:25:36 -02:00
coroutine_int.h coroutine: abort if we try to schedule or enter a pending coroutine 2017-11-21 11:58:07 -05:00
coroutine.h coroutine-lock: add qemu_co_rwlock_downgrade and qemu_co_rwlock_upgrade 2017-07-17 11:28:15 +08:00
cpuid.h util: Introduce include/qemu/cpuid.h 2017-07-24 12:42:55 +01:00
crc32c.h
cutils.h util/cutils: Change qemu_strtosz*() from int64_t to uint64_t 2017-02-23 20:35:36 +01:00
envlist.h
error-report.h error: Functions to report warnings and informational messages 2017-07-13 13:49:54 +02:00
event_notifier.h event_notifier: cleanups around event_notifier_set_handler 2017-01-16 17:52:35 +01:00
fifo8.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
fifo32.h hw: Clean up includes 2016-06-07 18:19:23 +03:00
fprintf-fn.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
futex.h futex: add missing header guards 2017-10-16 20:57:13 +03:00
hbitmap.h hbitmap: Rename serialization_granularity to serialization_align 2017-10-06 16:28:58 +02:00
help_option.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
host-utils.h host-utils: Simplify pow2ceil() 2017-09-06 14:38:03 +01:00
id.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
int128.h tcg: Add atomic128 helpers 2016-10-26 08:29:01 -07:00
iov.h tests: Use real size for iov tests 2017-09-05 22:34:40 +02:00
jhash.h Jhash: add linux kernel jhashtable in qemu 2016-09-27 17:54:21 +08:00
log.h log: Add locking to large logging blocks 2016-11-01 10:29:03 -06:00
main-loop.h main_loop: Make main_loop_wait() return void 2017-07-04 14:39:28 +02:00
memfd.h include: Clean up includes 2016-02-23 12:43:05 +00:00
mmap-alloc.h exec, kvm, target-ppc: Move getrampagesize() to common code 2017-03-03 11:30:59 +11:00
module.h qmp: Dumb down how we run QMP command registration 2017-03-05 09:02:10 +01:00
notify.h
option_int.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
option.h keyval: New keyval_parse() 2017-03-07 16:07:46 +01:00
osdep.h osdep: introduce qemu_mprotect_rwx/none 2017-10-24 13:53:42 -07:00
path.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
processor.h include/processor.h: define cpu_relax() 2016-06-11 23:10:17 +00:00
qdist.h clean-includes: run it once more 2016-06-16 18:39:03 +02:00
qht.h include: Fix typos found by codespell 2017-01-24 23:26:52 +03:00
queue.h migration: migrate QTAILQ 2017-01-24 17:54:47 +00:00
range.h range: Replace internal representation of Range 2016-07-04 16:49:33 +03:00
ratelimit.h blockjob: Track job ratelimits via bytes, not sectors 2017-07-10 13:18:06 +02:00
rcu_queue.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
rcu.h Revert "rcu: do not create thread in pthread_atfork callback" 2017-08-08 10:40:19 +02:00
readline.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
seqlock.h seqlock: use atomic writes for the sequence 2016-10-04 10:00:26 +02:00
sockets.h net/net: Convert parse_host_port() to Error 2017-09-08 08:17:37 +08:00
stats64.h util: add stats64 module 2017-06-16 07:55:00 +08:00
systemd.h qemu-ga: obey LISTEN_PID when using systemd socket activation 2017-03-19 11:12:12 +01:00
thread-posix.h thread-posix: fix qemu_rec_mutex_trylock macro 2017-11-14 14:31:33 +01:00
thread-win32.h qemu-thread: Assert locks are initialized before using 2017-07-04 14:39:28 +02:00
thread.h qemu-thread: optimize QemuLockCnt with futexes on Linux 2017-01-16 13:25:18 +00:00
throttle-options.h block: add throttle block filter driver 2017-09-06 10:12:02 +02:00
throttle.h block: convert ThrottleGroup to object with QOM 2017-09-05 18:12:21 +02:00
timed-average.h include: Clean up includes 2016-02-23 12:43:05 +00:00
timer.h timer.h: Provide better monotonic time 2017-06-13 14:56:59 +01:00
typedefs.h console: add support for dmabufs 2017-10-17 10:25:42 +02:00
unicode.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
uri.h Remove unused function declarations 2016-09-15 15:32:22 +03:00
uuid.h vl: Switch qemu_uuid to QemuUUID 2016-09-23 11:42:52 +08:00
xattr.h include: Fix typos found by codespell 2017-01-24 23:26:52 +03:00