OpenE2K/qemu-e2k
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qemu-e2k/include/qemu
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Paolo Bonzini f6d153f1bf rcu: optimize rcu_read_lock 
rcu_read_lock cannot change rcu_gp_ongoing from true to false
(the previous value of p_rcu_reader->ctr is zero), hence
there is no need to check p_rcu_reader->waiting and wake up
a concurrent synchronize_rcu.

While at it mark the wakeup as unlikely in rcu_read_unlock.

Reviewed-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1450265542-4323-1-git-send-email-pbonzini@redhat.com>
2015-12-17 17:33:49 +01:00
..
acl.h
misc: move include files to include/qemu/
2012-12-19 08:32:39 +01:00
atomic.h
atomics: add explicit compiler fence in __atomic memory barriers
2015-06-05 19:45:13 +02:00
bitmap.h
bitmap: add atomic test and clear
2015-06-05 17:10:00 +02:00
bitops.h
bitmap: add atomic set functions
2015-06-05 17:10:00 +02:00
bswap.h
cpu_ldst.h, cpu-all.h, bswap.h: Update documentation on ld/st accessors
2015-01-20 15:19:35 +00:00
buffer.h
buffer: allow a buffer to shrink gracefully
2015-11-05 09:09:58 +01:00
compatfd.h
util: Remove unused functions
2015-04-30 16:05:48 +03:00
compiler.h
compiler.h: Use glue() in QEMU_BUILD_BUG_ON define
2015-08-19 16:29:53 +01:00
config-file.h
qemu-option: introduce qemu_find_opts_singleton
2014-04-27 13:04:18 +04:00
coroutine_int.h
coroutine: move into libqemuutil.a library
2015-10-20 14:59:04 +01:00
coroutine.h
coroutine: move into libqemuutil.a library
2015-10-20 14:59:04 +01:00
crc32c.h
include/qemu/crc32c.h: Rename include guards to match filename
2014-02-26 17:20:07 +00:00
envlist.h
misc: move include files to include/qemu/
2012-12-19 08:32:39 +01:00
error-report.h
qemu-error: Add error_vreport()
2014-10-09 15:36:15 +02:00
event_notifier.h
util: const event_notifier_get_fd() argument
2015-10-24 18:02:49 +02:00
fifo8.h
util/fifo8: implement push/pop of multiple bytes
2014-02-08 14:50:48 +00:00
fprintf-fn.h
Stop including qemu-common.h in memory.h
2015-07-06 14:59:09 +02:00
hbitmap.h
util/hbitmap: Add an API to reset all set bits in hbitmap
2015-06-23 15:06:16 +01:00
host-utils.h
host-utils: Add revbit functions
2015-09-15 07:45:33 -07:00
int128.h
int128: Add int128_exts64()
2014-05-30 13:00:28 -06:00
iov.h
iov: don't touch iov in iov_send_recv()
2015-06-23 16:05:34 +01:00
log.h
user: introduce "-d page"
2015-12-17 17:33:48 +01:00
main-loop.h
iohandler: Use aio API
2015-09-07 18:14:03 +02:00
memfd.h
vhost: add migration block if memfd failed
2015-10-22 14:34:49 +03:00
mmap-alloc.h
util/mmap-alloc: fix hugetlb support on ppc64
2015-12-02 22:38:23 +02:00
module.h
module: implement module loading
2014-02-20 13:14:18 +01:00
notify.h
notify: add NotiferWithReturn so notifier list can abort
2013-06-28 09:20:26 +02:00
option_int.h
QemuOpts: change opt->name|str from (const char *) to (char *)
2014-06-16 17:23:20 +08:00
option.h
typedef: add typedef for QemuOpts
2015-09-25 12:04:45 +02:00
osdep.h
osdep: Change default value of qemu_hw_version() to "2.5+"
2015-11-25 13:42:37 +02:00
queue.h
block: Remove bdrv_swap()
2015-10-16 15:34:30 +02:00
range.h
Introduce signed range.
2014-06-19 18:44:19 +03:00
ratelimit.h
aio / timers: Switch entire codebase to the new timer API
2013-08-22 19:14:24 +02:00
rcu_queue.h
rcu: introduce RCU-enabled QLIST
2015-02-16 17:30:19 +01:00
rcu.h
rcu: optimize rcu_read_lock
2015-12-17 17:33:49 +01:00
readline.h
readline: Add missing GCC_FMT_ATTR
2014-02-01 13:46:06 +04:00
rfifolock.h
rfifolock: add recursive FIFO lock
2014-03-13 14:42:21 +01:00
seqlock.h
seqlock: read sequence number atomically
2015-09-07 18:12:39 +02:00
sockets.h
sockets: move qapi_copy_SocketAddress into qemu-sockets.c
2015-10-20 14:15:48 +01:00
thread-posix.h
qemu-thread: add QemuEvent
2013-10-17 17:30:55 +02:00
thread-win32.h
qemu-thread: add a fast path to the Win32 QemuEvent
2015-09-24 20:52:28 +02:00
thread.h
rcu: add rcu library
2015-02-02 16:55:10 +01:00
throttle.h
throttle: refuse bps_max/iops_max without bps/iops
2015-08-05 12:53:48 +01:00
timed-average.h
block: Add average I/O queue depth to BlockDeviceTimedStats
2015-11-12 16:22:46 +01:00
timer.h
s/cpu_get_real_ticks/cpu_get_host_ticks/
2015-10-08 19:46:01 +03:00
typedefs.h
qapi: Convert QType into QAPI built-in enum type
2015-12-17 08:21:28 +01:00
uri.h
misc: move include files to include/qemu/
2012-12-19 08:32:39 +01:00
xattr.h
misc: move include files to include/qemu/
2012-12-19 08:32:39 +01:00