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Wen Congyang 06c3916b35 Backup: don't do copy-on-read in before_write_notifier 
We will copy data in before_write_notifier to do backup.
It is a nested I/O request, so we cannot do copy-on-read.

The steps to reproduce it:
1. -drive copy-on-read=on,...  // qemu option
2. drive_backup -f disk0 /path_to_backup.img // monitor command

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Tested-by: Jeff Cody <jcody@redhat.com>
Message-id: 1441682913-14320-3-git-send-email-wency@cn.fujitsu.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
2015-09-25 08:37:07 -04:00
audio
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backends
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block
Backup: don't do copy-on-read in before_write_notifier
2015-09-25 08:37:07 -04:00
bsd-user
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crypto
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default-configs
spapr: Initialize hotplug memory address space
2015-09-23 10:51:10 +10:00
disas
…
docs
spapr: Support ibm,dynamic-reconfiguration-memory
2015-09-23 10:51:10 +10:00
dtc @ 65cc4d2748
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fpu
…
fsdev
…
gdb-xml
…
hw
hw/arm/virt-acpi-build: Fix wrong size of flash in ACPI table
2015-09-24 01:29:37 +01:00
include
block: Introduce a new API bdrv_co_no_copy_on_readv()
2015-09-25 08:37:07 -04:00
libcacard
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libdecnumber
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linux-headers
…
linux-user
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migration
…
net
…
pc-bios
pseries: Update SLOF firmware image to qemu-slof-20150813
2015-09-23 10:51:09 +10:00
pixman @ 87eea99e44
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po
…
qapi
qapi-introspect: Hide type names
2015-09-21 09:56:49 +02:00
qga
…
qobject
…
qom
…
roms
pseries: Update SLOF firmware image to qemu-slof-20150813
2015-09-23 10:51:09 +10:00
scripts
qapi-introspect: Hide type names
2015-09-21 09:56:49 +02:00
slirp
…
stubs
…
target-alpha
…
target-arm
hw/intc: Initial implementation of vGICv3
2015-09-24 01:29:37 +01:00
target-cris
…
target-i386
…
target-lm32
…
target-m68k
…
target-microblaze
…
target-mips
…
target-moxie
…
target-openrisc
…
target-ppc
ppc/spapr: Implement H_RANDOM hypercall in QEMU
2015-09-23 10:51:11 +10:00
target-s390x
…
target-sh4
…
target-sparc
…
target-tilegx
…
target-tricore
…
target-unicore32
…
target-xtensa
…
tcg
…
tests
qapi: New QMP command query-qmp-schema for QMP introspection
2015-09-21 09:56:49 +02:00
trace
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ui
spice: surface switch fast path requires same format too.
2015-09-21 09:52:07 +02:00
util
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.exrc
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.gitignore
qapi: New QMP command query-qmp-schema for QMP introspection
2015-09-21 09:56:49 +02:00
.gitmodules
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.mailmap
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.travis.yml
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accel.c
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aio-posix.c
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aio-win32.c
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arch_init.c
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async.c
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balloon.c
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block.c
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blockdev-nbd.c
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blockdev.c
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blockjob.c
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bootdevice.c
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bt-host.c
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bt-vhci.c
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Changelog
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CODING_STYLE
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configure
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COPYING
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COPYING.LIB
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coroutine-gthread.c
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coroutine-sigaltstack.c
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coroutine-ucontext.c
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coroutine-win32.c
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cpu-exec-common.c
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cpu-exec.c
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cpus.c
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cputlb.c
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device_tree.c
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device-hotplug.c
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disas.c
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dma-helpers.c
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dump.c
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exec.c
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gdbstub.c
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HACKING
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hmp-commands-info.hx
hmp: Restore "info pci"
2015-09-22 11:32:37 +02:00
hmp-commands.hx
monitor: allow device_del to accept QOM paths
2015-09-22 11:31:56 +02:00
hmp.c
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hmp.h
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iohandler.c
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ioport.c
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iothread.c
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kvm-all.c
intc/gic: Extract some reusable vGIC code
2015-09-24 01:29:36 +01:00
kvm-stub.c
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LICENSE
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main-loop.c
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MAINTAINERS
MAINTAINERS: update Allwinner A10 maintainer
2015-09-24 01:29:37 +01:00
Makefile
qapi: New QMP command query-qmp-schema for QMP introspection
2015-09-21 09:56:49 +02:00
Makefile.objs
qapi: New QMP command query-qmp-schema for QMP introspection
2015-09-21 09:56:49 +02:00
Makefile.target
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memory_mapping.c
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memory.c
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module-common.c
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monitor.c
qapi: New QMP command query-qmp-schema for QMP introspection
2015-09-21 09:56:49 +02:00
nbd.c
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numa.c
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os-posix.c
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os-win32.c
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page_cache.c
…
qapi-schema.json
monitor: allow device_del to accept QOM paths
2015-09-22 11:31:56 +02:00
qdev-monitor.c
monitor: allow device_del to accept QOM paths
2015-09-22 11:31:56 +02:00
qdict-test-data.txt
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qemu-bridge-helper.c
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qemu-char.c
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qemu-coroutine-io.c
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qemu-coroutine-lock.c
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qemu-coroutine-sleep.c
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qemu-coroutine.c
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qemu-doc.texi
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qemu-ga.texi
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qemu-img-cmds.hx
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qemu-img.c
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qemu-img.texi
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qemu-io-cmds.c
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qemu-io.c
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qemu-log.c
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qemu-nbd.c
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qemu-nbd.texi
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qemu-options-wrapper.h
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qemu-options.h
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qemu-options.hx
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qemu-seccomp.c
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qemu-tech.texi
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qemu-timer.c
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qemu.nsi
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qemu.sasl
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qjson.c
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qmp-commands.hx
monitor: allow device_del to accept QOM paths
2015-09-22 11:31:56 +02:00
qmp.c
qom: Don't use 'gen': false for qom-get, qom-set, object-add
2015-09-21 09:56:49 +02:00
qtest.c
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README
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rules.mak
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softmmu_template.h
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spice-qemu-char.c
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tcg-runtime.c
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tci.c
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thread-pool.c
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thunk.c
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tpm.c
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trace-events
block: Introduce a new API bdrv_co_no_copy_on_readv()
2015-09-25 08:37:07 -04:00
translate-all.c
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translate-all.h
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translate-common.c
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user-exec.c
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VERSION
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version.rc
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vl.c
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xen-common-stub.c
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xen-common.c
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xen-hvm-stub.c
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xen-hvm.c
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xen-mapcache.c
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README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team
Description
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Readme 404 MiB
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