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qemu-patch-raspberry4/include/qemu
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Paolo Bonzini 51dee5e465 qemu-thread: introduce QemuLockCnt 
A QemuLockCnt comprises a counter and a mutex, with primitives
to increment and decrement the counter, and to take and release the
mutex.  It can be used to do lock-free visits to a data structure
whenever mutexes would be too heavy-weight and the critical section
is too long for RCU.

This could be implemented simply by protecting the counter with the
mutex, but QemuLockCnt is harder to misuse and more efficient.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170112180800.21085-3-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-01-16 13:25:17 +00:00
..
acl.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
atomic.h atomics: Add __nocheck atomic operations 2016-10-26 08:28:57 -07:00
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: refine and move BITMAP_{FIRST/LAST}_WORD_MASK 2016-10-08 11:25:29 +03:00
bitops.h bitops: fix rol/ror when shift is zero 2016-11-15 10:05:50 +11:00
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
compatfd.h include: Clean up includes 2016-02-23 12:43:05 +00:00
compiler.h compiler: Swap 'public domain' header for license 2016-09-27 11:57:29 +02:00
config-file.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
coroutine.h coroutine: Introduce qemu_coroutine_enter_if_inactive() 2017-01-09 13:30:52 +01:00
coroutine_int.h coroutine: add a macro for the coroutine stack size 2016-09-29 14:13:39 +02:00
crc32c.h include/qemu/crc32c.h: Rename include guards to match filename 2014-02-26 17:20:07 +00:00
cutils.h cutils: Add test for buffer_is_zero 2016-09-13 19:13:32 +02:00
envlist.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
error-report.h qemu-error: remove dependency of stubs on monitor 2016-11-01 16:06:57 +01:00
event_notifier.h event-notifier: Add "is_external" parameter 2016-04-22 16:43:56 +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
hbitmap.h hbitmap: serialization 2016-10-24 17:56:07 +02:00
help_option.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
host-utils.h qemu/host-utils.h: Reduce the operation count in the fallback ctpop 2017-01-10 08:49:59 -08:00
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 include/qemu/iov.h: Don't include qemu-common.h 2016-03-22 22:20:16 +01:00
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: update comment for qemu_mutex_lock/unlock_iothread 2016-12-22 16:00:24 +01:00
memfd.h include: Clean up includes 2016-02-23 12:43:05 +00:00
mmap-alloc.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
module.h trace: provide mechanism for registering trace events 2016-10-12 09:52:50 +02:00
notify.h notify: add NotiferWithReturn so notifier list can abort 2013-06-28 09:20:26 +02:00
option.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +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 nbd: Improve server handling of shutdown requests 2016-11-02 09:28:56 +01:00
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 util/qht: Document memory ordering assumptions 2016-08-02 12:03:58 +02:00
queue.h qtail: clean up direct access to tqe_prev field 2016-09-13 19:08:41 +02:00
range.h range: Replace internal representation of Range 2016-07-04 16:49:33 +03:00
ratelimit.h Improve block job rate limiting for small bandwidth values 2016-07-13 13:41:38 +02:00
rcu.h all: Remove unnecessary glib.h includes 2016-06-07 18:19:24 +03:00
rcu_queue.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +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 util/qemu-sockets: Make inet_connect_saddr() public 2016-10-31 16:49:13 +01:00
thread-posix.h qemu-thread: introduce QemuRecMutex 2016-10-28 21:50:18 +08:00
thread-win32.h qemu-thread: introduce QemuRecMutex 2016-10-28 21:50:18 +08:00
thread.h qemu-thread: introduce QemuLockCnt 2017-01-16 13:25:17 +00:00
throttle.h include: Clean up includes 2016-02-23 12:43:05 +00:00
timed-average.h include: Clean up includes 2016-02-23 12:43:05 +00:00
timer.h timer: fix misleading comment in timer.h 2016-12-22 16:00:24 +01:00
typedefs.h exec: introduce MemoryRegionCache 2016-12-22 16:00:23 +01:00
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: Clean up includes 2016-02-23 12:43:05 +00:00