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qemu-e2k/util
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Stefan Hajnoczi aa38e19f05 aio-posix: support userspace polling of fd monitoring 
Unlike ppoll(2) and epoll(7), Linux io_uring completions can be polled
from userspace.  Previously userspace polling was only allowed when all
AioHandler's had an ->io_poll() callback.  This prevented starvation of
fds by userspace pollable handlers.

Add the FDMonOps->need_wait() callback that enables userspace polling
even when some AioHandlers lack ->io_poll().

For example, it's now possible to do userspace polling when a TCP/IP
socket is monitored thanks to Linux io_uring.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://lore.kernel.org/r/20200305170806.1313245-7-stefanha@redhat.com
Message-Id: <20200305170806.1313245-7-stefanha@redhat.com>
2020-03-09 16:41:31 +00:00
..
aio-posix.c
aio-posix: support userspace polling of fd monitoring
2020-03-09 16:41:31 +00:00
aio-posix.h
aio-posix: add io_uring fd monitoring implementation
2020-03-09 16:41:31 +00:00
aio-wait.c
block: Use a single global AioWait
2018-09-25 15:50:15 +02:00
aio-win32.c
aio-posix: Fix concurrent aio_poll/set_fd_handler.
2019-01-14 14:09:41 +00:00
aiocb.c
…
async.c
util/async: make bh_aio_poll() O(1)
2020-02-22 08:26:47 +00:00
atomic64.c
util: add atomic64
2018-10-02 18:47:55 +02:00
base64.c
…
bitmap.c
bitmap: Add bitmap_copy_with_{src|dst}_offset()
2019-07-15 15:39:02 +02:00
bitops.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
buffer.c
…
bufferiszero.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
cacheinfo.c
util/cacheinfo: fix crash when compiling with uClibc
2020-01-21 14:18:12 -10:00
compatfd.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
coroutine-sigaltstack.c
…
coroutine-ucontext.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
coroutine-win32.c
…
crc32c.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
cutils.c
util/cutils: Turn FIXME comment into QEMU_BUILD_BUG_ON()
2019-12-18 12:26:25 +01:00
dbus.c
util: add dbus helper unit
2020-01-06 18:41:32 +04:00
drm.c
util: promote qemu_egl_rendernode_open() to libqemuutil
2018-08-27 10:51:44 +02:00
envlist.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +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
event_notifier: avoid dandling file descriptor in event_notifier_cleanup
2019-10-24 19:26:52 +02:00
event_notifier-win32.c
Revert "qemu: add a cleanup callback function to EventNotifier"
2018-01-24 19:20:19 +02:00
fdmon-epoll.c
aio-posix: support userspace polling of fd monitoring
2020-03-09 16:41:31 +00:00
fdmon-io_uring.c
aio-posix: support userspace polling of fd monitoring
2020-03-09 16:41:31 +00:00
fdmon-poll.c
aio-posix: support userspace polling of fd monitoring
2020-03-09 16:41:31 +00:00
fifo8.c
Include migration/vmstate.h less
2019-08-16 13:31:52 +02:00
filemonitor-inotify.c
filemon: fix watch IDs to avoid potential wraparound issues
2019-04-02 13:52:02 +01:00
filemonitor-stub.c
filemon: fix watch IDs to avoid potential wraparound issues
2019-04-02 13:52:02 +01:00
getauxval.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
guest-random.c
replay: record and replay random number sources
2020-01-07 12:08:39 +01:00
hbitmap.c
hbitmap: handle set/reset with zero length
2019-10-28 11:22:30 +01:00
hexdump.c
…
host-utils.c
…
id.c
chardev: generate an internal id when none given
2020-01-07 16:50:09 +04:00
iov.c
util/ioc.c: try to reassure Coverity about qemu_iovec_init_extended
2019-10-08 14:27:35 +01:00
iova-tree.c
util: remove redundant include of glib.h and add osdep.h
2018-06-29 12:22:28 +01:00
keyval.c
qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF
2018-05-04 08:27:53 +02:00
lockcnt.c
…
log.c
linux-user: Use `qemu_log' for strace
2020-02-19 11:17:40 +01:00
main-loop.c
Do not use %m in common code to print error messages
2019-10-22 09:38:42 +02:00
Makefile.objs
aio-posix: add io_uring fd monitoring implementation
2020-03-09 16:41:31 +00:00
memfd.c
linux-user: add memfd_create
2019-09-11 08:46:17 +02:00
mmap-alloc.c
core: replace getpagesize() with qemu_real_host_page_size
2019-10-26 15:38:06 +02:00
module.c
module: check module wasn't already initialized
2020-02-22 08:26:47 +00:00
notify.c
xen / notify: introduce a new XenWatchList abstraction
2019-09-24 12:18:47 +01:00
nvdimm-utils.c
mem: move nvdimm_device_list to utilities
2020-02-21 09:15:03 +11:00
osdep.c
osdep: add qemu_unlink()
2020-01-02 16:29:32 +04:00
oslib-posix.c
mem-prealloc: optimize large guest startup
2020-02-25 09:18:01 +01:00
oslib-win32.c
core: replace getpagesize() with qemu_real_host_page_size
2019-10-26 15:38:06 +02:00
pagesize.c
util: move qemu_real_host_page_size/mask to osdep.h
2017-10-10 09:45:00 -07:00
path.c
util/path: Do not cache all filenames at startup
2019-06-24 22:19:30 +02:00
qdist.c
…
qemu-co-shared-resource.c
util: introduce SharedResource
2019-10-28 11:22:31 +01:00
qemu-config.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
qemu-coroutine-io.c
yield_until_fd_readable: make it work with any AioContect
2019-10-25 14:38:29 +02:00
qemu-coroutine-lock.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
qemu-coroutine-sleep.c
qemu-coroutine-sleep: Silence Coverity warning
2019-11-18 16:01:34 -06:00
qemu-coroutine.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
qemu-error.c
error: Fix -msg timestamp default
2019-12-18 08:36:15 +01:00
qemu-openpty.c
…
qemu-option.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
qemu-print.c
qemu-print: New qemu_fprintf(), qemu_vfprintf()
2019-04-18 22:18:59 +02:00
qemu-progress.c
…
qemu-sockets.c
util/qemu-sockets: fix keep_alive handling in inet_connect_saddr
2019-09-25 08:15:44 -05:00
qemu-thread-common.h
Clean up includes
2018-12-20 10:29:08 +01:00
qemu-thread-posix.c
qemu-thread: Add qemu_cond_timedwait
2019-09-16 17:13:06 +02:00
qemu-thread-win32.c
qemu-thread: Add qemu_cond_timedwait
2019-09-16 17:13:06 +02:00
qemu-timer-common.c
Remove support for CLOCK_MONOTONIC not being defined
2020-02-12 16:23:01 +01:00
qemu-timer.c
qemu-timer: reuse MIN macro in qemu_timeout_ns_to_ms
2019-10-24 20:10:18 +02:00
qht.c
qht: constify arguments to some internal functions
2018-09-26 08:55:54 -07:00
qsp.c
qsp: Use WITH_RCU_READ_LOCK_GUARD
2019-12-17 19:33:52 +01:00
range.c
Don't talk about the LGPL if the file is licensed under the GPL
2019-01-30 10:51:20 +01:00
rcu.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
readline.c
qemu-common: Move qemu_isalnum() etc. to qemu/ctype.h
2019-06-11 20:22:09 +02:00
stats64.c
util/stats64: Fix min/max comparisons
2017-11-15 09:34:51 +01:00
sys_membarrier.c
sys_membarrier: fix up include directives
2018-04-05 14:37:38 +02:00
systemd.c
Do not use %m in common code to print error messages
2019-10-22 09:38:42 +02:00
thread-pool.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
throttle.c
…
timed-average.c
…
trace-events
socket: Add backlog parameter to socket_listen
2019-09-03 23:24:42 +02:00
unicode.c
json: Reject invalid UTF-8 sequences
2018-08-24 20:26:37 +02:00
uri.c
cutils: Provide strchrnul
2018-06-29 12:32:10 +02:00
uuid.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
vfio-helpers.c
Report stringified errno in VFIO related errors
2020-02-18 20:20:49 +01:00