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qemu-patch-raspberry4/include/qemu
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Kevin Wolf b5a7a05735 blockjob: Lie better in child_job_drained_poll() 
Block jobs claim in .drained_poll() that they are in a quiescent state
as soon as job->deferred_to_main_loop is true. This is obviously wrong,
they still have a completion BH to run. We only get away with this
because commit 91af091f92 added an unconditional aio_poll(false) to the
drain functions, but this is bypassing the regular drain mechanisms.

However, just removing this and telling that the job is still active
doesn't work either: The completion callbacks themselves call drain
functions (directly, or indirectly with bdrv_reopen), so they would
deadlock then.

As a better lie, tell that the job is active as long as the BH is
pending, but falsely call it quiescent from the point in the BH when the
completion callback is called. At this point, nested drain calls won't
deadlock because they ignore the job, and outer drains will wait for the
job to really reach a quiescent state because the callback is already
running.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2018-09-25 15:50:15 +02:00
..
acl.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
atomic.h atomic.h: Work around gcc spurious "unused value" warning 2018-05-10 18:10:57 +01:00
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: Add new stn_*_p() and ldn_*_p() memory access functions 2018-06-15 15:23:34 +01:00
buffer.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
compiler.h compiler: add a sizeof_field() macro 2018-06-27 13:01:40 +01:00
config-file.h Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
coroutine.h block: Add missing locking in bdrv_co_drain_bh_cb() 2018-09-25 15:50:15 +02:00
coroutine_int.h coroutine: avoid co_queue_wakeup recursion 2018-03-27 13:05:28 +01:00
cpuid.h util: Introduce include/qemu/cpuid.h 2017-07-24 12:42:55 +01:00
crc32c.h include/qemu/crc32c.h: Rename include guards to match filename 2014-02-26 17:20:07 +00:00
cutils.h cutils: Do not include "qemu/units.h" directly 2018-07-02 15:41:17 +02:00
drm.h util: promote qemu_egl_rendernode_open() to libqemuutil 2018-08-27 10:51:44 +02:00
envlist.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
error-report.h qemu-error: make use of {error, warn}_report_once_cond 2018-09-24 17:13:07 +02:00
event_notifier.h Revert "qemu: add a cleanup callback function to EventNotifier" 2018-01-24 19:20:19 +02:00
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: Add @advance param to hbitmap_iter_next() 2018-06-18 17:04:55 +02:00
help_option.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
host-utils.h pci/shpc: Move function to generic header file 2018-01-18 21:52:38 +02:00
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
iova-tree.h util: remove redundant include of glib.h and add osdep.h 2018-06-29 12:22:28 +01:00
jhash.h Jhash: add linux kernel jhashtable in qemu 2016-09-27 17:54:21 +08:00
job.h blockjob: Lie better in child_job_drained_poll() 2018-09-25 15:50:15 +02:00
lockable.h lockable: workaround GCC link issue with ASAN 2018-03-06 14:01:27 +01:00
log-for-trace.h log-for-trace.h: Split out parts of log.h used by trace.h 2018-03-12 11:10:20 +00:00
log.h tcg: Optionally log FPU state in TCG -d cpu logging 2018-05-15 14:58:44 +01:00
main-loop.h qsp: track BQL callers explicitly 2018-08-23 18:46:25 +02:00
memfd.h memfd: fix vhost-user-test on non-memfd capable host 2018-04-09 12:57:06 +02:00
mmap-alloc.h exec, kvm, target-ppc: Move getrampagesize() to common code 2017-03-03 11:30:59 +11:00
module.h audio: add module loading support 2018-03-12 11:18:26 +01:00
notify.h notify: add NotiferWithReturn so notifier list can abort 2013-06-28 09:20:26 +02:00
option.h opts: don't silently truncate long option values 2018-05-09 00:13:39 +02:00
option_int.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
osdep.h osdep: work around Coverity parsing errors 2018-06-28 19:05:34 +02:00
path.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
pmem.h migration/ram: ensure write persistence on loading all data to PMEM. 2018-08-10 13:29:39 +03:00
processor.h Drop remaining bits of ia64 host support 2018-02-05 18:09:45 +01:00
qdist.h clean-includes: run it once more 2016-06-16 18:39:03 +02:00
qht.h qsp: QEMU's Synchronization Profiler 2018-08-23 18:46:25 +02:00
qsp.h qsp: support call site coalescing 2018-08-23 18:46:25 +02:00
queue.h migration: hold the lock only if it is really needed 2018-08-22 12:36:18 +02:00
range.h range: Replace internal representation of Range 2016-07-04 16:49:33 +03:00
ratelimit.h ratelimit: don't align wait time with slices 2018-02-15 09:39:49 +00:00
rcu.h membarrier: introduce qemu/sys_membarrier.h 2018-03-12 16:12:47 +01:00
rcu_queue.h rcu_queue: add RCU QTAILQ 2018-08-23 18:46:25 +02:00
readline.h readline: add a free function 2018-01-16 14:54:50 +01:00
seqlock.h seqlock: add QemuLockable support 2018-08-23 18:46:25 +02:00
sockets.h sockets: move fd_is_socket() into common sockets code 2018-03-13 18:06:06 +00:00
stats64.h util: add stats64 module 2017-06-16 07:55:00 +08:00
sys_membarrier.h membarrier: add --enable-membarrier 2018-03-12 16:12:47 +01:00
systemd.h qemu-ga: obey LISTEN_PID when using systemd socket activation 2017-03-19 11:12:12 +01:00
thread-posix.h qsp: QEMU's Synchronization Profiler 2018-08-23 18:46:25 +02:00
thread-win32.h qsp: QEMU's Synchronization Profiler 2018-08-23 18:46:25 +02:00
thread.h qsp: track BQL callers explicitly 2018-08-23 18:46:25 +02:00
throttle-options.h block: add throttle block filter driver 2017-09-06 10:12:02 +02:00
throttle.h Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
timed-average.h include: Clean up includes 2016-02-23 12:43:05 +00:00
timer.h replay: save prior value of the host clock 2018-03-12 16:12:50 +01:00
typedefs.h typedefs: add QJSON 2018-06-15 14:40:56 +01:00
unicode.h json: Reject invalid UTF-8 sequences 2018-08-24 20:26:37 +02:00
units.h include: Add IEC binary prefixes in "qemu/units.h" 2018-07-02 14:45:23 +02:00
uri.h Remove unused function declarations 2016-09-15 15:32:22 +03:00
uuid.h util: add is_equal to UUID API 2017-12-20 22:01:24 +08:00
vfio-helpers.h util: Introduce vfio helpers 2018-02-08 09:22:03 +08:00
xattr.h include: Fix typos found by codespell 2017-01-24 23:26:52 +03:00