qemu-irix/util
Peter Lieven b7a745dc33 thread-pool: add missing qemu_bh_cancel in completion function
commit 3c80ca15 fixed a deadlock scenarion with nested aio_poll invocations.

However, the rescheduling of the completion BH introcuded unnecessary spinning
in the main-loop. On very fast file backends this can even lead to the
"WARNING: I/O thread spun for 1000 iterations" message popping up.

Callgrind reports about 3-4% less instructions with this patch running
qemu-img bench on a ramdisk based VMDK file.

Fixes: 3c80ca158c
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-03-17 12:54:21 +01:00
..
Makefile.objs keyval: New keyval_parse() 2017-03-07 16:07:46 +01:00
acl.c
aio-posix.c
aio-win32.c
aiocb.c
async.c cpus: define QEMUTimerListNotifyCB for QEMU system emulation 2017-03-14 13:28:29 +01:00
base64.c
bitmap.c
bitops.c
buffer.c
bufferiszero.c
compatfd.c cpus: remove ugly cast on sigbus_handler 2017-03-03 16:40:02 +01:00
coroutine-gthread.c
coroutine-sigaltstack.c
coroutine-ucontext.c
coroutine-win32.c
crc32c.c
cutils.c util/cutils: Change qemu_strtosz*() from int64_t to uint64_t 2017-02-23 20:35:36 +01:00
envlist.c
error.c
event_notifier-posix.c
event_notifier-win32.c
fifo8.c
getauxval.c
hbitmap.c
hexdump.c
host-utils.c
id.c
iohandler.c
iov.c
keyval.c keyval: Support lists 2017-03-07 16:07:48 +01:00
lockcnt.c
log.c util/cutils: Rename qemu_strtoll(), qemu_strtoull() 2017-02-23 20:35:35 +01:00
main-loop.c cpus: define QEMUTimerListNotifyCB for QEMU system emulation 2017-03-14 13:28:29 +01:00
memfd.c
mmap-alloc.c exec, kvm, target-ppc: Move getrampagesize() to common code 2017-03-03 11:30:59 +11:00
module.c
notify.c
osdep.c
oslib-posix.c os: don't corrupt pre-existing memory-backend data with prealloc 2017-03-15 11:55:41 +08:00
oslib-win32.c mem-prealloc: reduce large guest start-up and migration time. 2017-03-14 13:26:36 +01:00
path.c util: Removed unneeded header from path.c 2017-03-14 13:26:37 +01:00
qdist.c
qemu-config.c
qemu-coroutine-io.c
qemu-coroutine-lock.c
qemu-coroutine-sleep.c
qemu-coroutine.c
qemu-error.c
qemu-openpty.c
qemu-option.c option: Tweak invalid size error message and unbreak iotest 049 2017-02-28 20:40:31 +01:00
qemu-progress.c
qemu-sockets.c
qemu-thread-posix.c
qemu-thread-win32.c
qemu-timer-common.c
qemu-timer.c icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread 2017-03-14 13:51:34 +01:00
qht.c
range.c
rcu.c
readline.c
thread-pool.c thread-pool: add missing qemu_bh_cancel in completion function 2017-03-17 12:54:21 +01:00
throttle.c
timed-average.c
trace-events
unicode.c
uri.c
uuid.c