Paolo Bonzini a7b91d35ba coroutine-lock: make CoRwlock thread-safe and fair ...

This adds a CoMutex around the existing CoQueue.  Because the write-side
can just take CoMutex, the old "writer" field is not necessary anymore.
Instead of removing it altogether, count the number of pending writers
during a read-side critical section and forbid further readers from
entering.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20170213181244.16297-7-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

2017-02-21 11:39:40 +00:00

..

acl.c

…

aio-posix.c

async: remove unnecessary inc/dec pairs

2017-02-21 11:39:40 +00:00

aio-win32.c

async: remove unnecessary inc/dec pairs

2017-02-21 11:39:40 +00:00

aiocb.c

block: move AioContext, QEMUTimer, main-loop to libqemuutil

2017-02-21 11:14:07 +00:00

async.c

async: remove unnecessary inc/dec pairs

2017-02-21 11:39:40 +00:00

base64.c

…

bitmap.c

bitmap: assert that start and nr are non negative

2017-01-20 13:22:17 +01:00

bitops.c

…

buffer.c

…

bufferiszero.c

cutils: Rewrite x86 buffer zero checking

2016-09-14 12:25:14 +02:00

compatfd.c

…

coroutine-gthread.c

…

coroutine-sigaltstack.c

coroutine-sigaltstack: use helper for allocating stack memory

2016-09-29 14:13:39 +02:00

coroutine-ucontext.c

coroutine-ucontext: use helper for allocating stack memory

2016-09-29 14:13:39 +02:00

coroutine-win32.c

coroutine: add a macro for the coroutine stack size

2016-09-29 14:13:39 +02:00

crc32c.c

…

cutils.c

…

envlist.c

…

error.c

…

event_notifier-posix.c

event_notifier: cleanups around event_notifier_set_handler

2017-01-16 17:52:35 +01:00

event_notifier-win32.c

event_notifier: cleanups around event_notifier_set_handler

2017-01-16 17:52:35 +01:00

fifo8.c

migration: consolidate VMStateField.start

2017-02-13 17:27:13 +00:00

getauxval.c

…

hbitmap.c

hbitmap: Add hbitmap_is_serializable()

2017-01-26 10:25:01 +08:00

hexdump.c

…

host-utils.c

host-utils: Implement unsigned quadword left/right shift and unit tests

2017-01-31 10:10:14 +11:00

id.c

…

iohandler.c

block: move AioContext, QEMUTimer, main-loop to libqemuutil

2017-02-21 11:14:07 +00:00

iov.c

…

lockcnt.c

qemu-thread: optimize QemuLockCnt with futexes on Linux

2017-01-16 13:25:18 +00:00

log.c

log: fix parsing of multiple trace:PATTERN log args

2016-09-14 22:52:44 +02:00

main-loop.c

block: move AioContext, QEMUTimer, main-loop to libqemuutil

2017-02-21 11:14:07 +00:00

Makefile.objs

block: move AioContext, QEMUTimer, main-loop to libqemuutil

2017-02-21 11:14:07 +00:00

memfd.c

…

mmap-alloc.c

util/mmap-alloc: refactor a little bit for readability

2017-01-24 23:26:53 +03:00

module.c

module: Don't load the same module if requested multiple times

2016-10-07 14:14:06 +02:00

notify.c

…

osdep.c

…

oslib-posix.c

Fix FreeBSD (10.x) build after 7dc9ae43

2016-11-22 10:56:01 +00:00

oslib-win32.c

win32: use glib gpoll if glib >= 2.50

2017-01-24 23:26:53 +03:00

path.c

…

qdist.c

…

qemu-config.c

block: Add bdrv_runtime_opts to query-command-line-options

2016-10-07 13:34:07 +02:00

qemu-coroutine-io.c

…

qemu-coroutine-lock.c

coroutine-lock: make CoRwlock thread-safe and fair

2017-02-21 11:39:40 +00:00

qemu-coroutine-sleep.c

block: explicitly acquire aiocontext in timers that need it

2017-02-21 11:14:08 +00:00

qemu-coroutine.c

coroutine-lock: add limited spinning to CoMutex

2017-02-21 11:39:40 +00:00

qemu-error.c

qemu-error: remove dependency of stubs on monitor

2016-11-01 16:06:57 +01:00

qemu-openpty.c

…

qemu-option.c

util: add iterators for QemuOpts values

2017-02-09 17:28:49 +01:00

qemu-progress.c

…

qemu-sockets.c

io: introduce a DNS resolver API

2017-01-23 15:32:46 +00:00

qemu-thread-posix.c

* QOM interface fix (Eduardo)

2017-01-20 16:42:07 +00:00

qemu-thread-win32.c

* QOM interface fix (Eduardo)

2017-01-20 16:42:07 +00:00

qemu-timer-common.c

…

qemu-timer.c

block: move AioContext, QEMUTimer, main-loop to libqemuutil

2017-02-21 11:14:07 +00:00

qht.c

qht: fix unlock-after-free segfault upon resizing

2016-10-06 18:04:13 +02:00

range.c

…

rcu.c

rcu: simplify memory barriers

2016-10-24 11:30:56 +02:00

readline.c

…

thread-pool.c

block: explicitly acquire aiocontext in aio callbacks that need it

2017-02-21 11:39:39 +00:00

throttle.c

…

timed-average.c

…

trace-events

coroutine-lock: make CoMutex thread-safe

2017-02-21 11:39:40 +00:00

unicode.c

…

uri.c

Fix documentation and some comments (article, grammar)

2017-01-24 23:26:52 +03:00

uuid.c

uuid: Tighten uuid parse

2016-09-23 11:42:52 +08:00