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Jianjun Duan 94869d5c52 migration: migrate QTAILQ 
Currently we cannot directly transfer a QTAILQ instance because of the
limitation in the migration code. Here we introduce an approach to
transfer such structures. We created VMStateInfo vmstate_info_qtailq
for QTAILQ. Similar VMStateInfo can be created for other data structures
such as list.

When a QTAILQ is migrated from source to target, it is appended to the
corresponding QTAILQ structure, which is assumed to have been properly
initialized.

This approach will be used to transfer pending_events and ccs_list in spapr
state.

We also create some macros in qemu/queue.h to access a QTAILQ using pointer
arithmetic. This ensures that we do not depend on the implementation
details about QTAILQ in the migration code.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Signed-off-by: Jianjun Duan <duanj@linux.vnet.ibm.com>
Message-Id: <1484852453-12728-3-git-send-email-duanj@linux.vnet.ibm.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-01-24 17:54:47 +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 arch_init: Remove unnecessary default_config_files table 2017-01-23 21:25:36 -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
error-report.h qemu-error: remove dependency of stubs on monitor 2016-11-01 16:06:57 +01:00
event_notifier.h event_notifier: cleanups around event_notifier_set_handler 2017-01-16 17:52:35 +01:00
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
futex.h qemu-thread: optimize QemuLockCnt with futexes on Linux 2017-01-16 13:25:18 +00:00
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 event_notifier: cleanups around event_notifier_set_handler 2017-01-16 17:52:35 +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
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 migration: migrate QTAILQ 2017-01-24 17:54:47 +00:00
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 io: introduce a DNS resolver API 2017-01-23 15:32:46 +00:00
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: optimize QemuLockCnt with futexes on Linux 2017-01-16 13:25:18 +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