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d616b22474
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Stefan Hajnoczi d616b22474 block: add bdrv_add_before_write_notifier() 
The bdrv_add_before_write_notifier() function installs a callback that
is invoked before a write request is processed.  This will be used to
implement copy-on-write point-in-time snapshots where we need to copy
out old data before overwriting it.

Note that BdrvTrackedRequest is moved to block_int.h since it is passed
to .notify() functions.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28 09:20:26 +02:00
audio audio: Replace static functions in header file by macros, remove GCC_ATTR 2013-06-21 22:52:50 +04:00
backends
block raw-posix: Fix /dev/cdrom magic on OS X 2013-06-28 09:20:26 +02:00
bsd-user
default-configs
disas
docs rdma: add documentation 2013-06-27 02:38:35 +02:00
dtc@bc895d6d09
fpu
fsdev
gdb-xml
hw Merge remote-tracking branch 'pmaydell/arm-devs.for-upstream' into staging 2013-06-25 14:14:13 -05:00
include block: add bdrv_add_before_write_notifier() 2013-06-28 09:20:26 +02:00
ldscripts
libcacard
linux-headers
linux-user
net
pc-bios
pixman@97336fad32
po
qapi
qga
QMP
qobject
qom
roms
scripts
slirp
stubs
sysconfigs/target
target-alpha
target-arm target-arm: Make LPAE feature imply V7MP 2013-06-25 18:16:10 +01:00
target-cris
target-i386
target-lm32
target-m68k
target-microblaze
target-mips
target-moxie
target-openrisc
target-ppc
target-s390x virtio-ccw: Wire up ioeventfd. 2013-06-25 17:11:11 +02:00
target-sh4
target-sparc
target-unicore32
target-xtensa
tcg
tests Revert "block: Disable driver-specific options for 1.5" 2013-06-24 10:25:16 +02:00
trace
ui Merge remote-tracking branch 'spice/spice.v71' into staging 2013-06-24 14:33:09 -05:00
util notify: add NotiferWithReturn so notifier list can abort 2013-06-28 09:20:26 +02:00
.exrc
.gitignore
.gitmodules
.mailmap
aio-posix.c
aio-win32.c
arch_init.c rdma: introduce qemu_update_position() 2013-06-27 02:38:35 +02:00
async.c
balloon.c
block-migration.c
block.c block: add bdrv_add_before_write_notifier() 2013-06-28 09:20:26 +02:00
blockdev-nbd.c
blockdev.c Revert "block: Disable driver-specific options for 1.5" 2013-06-24 10:25:16 +02:00
blockjob.c
bt-host.c
bt-vhci.c
Changelog
CODING_STYLE
configure configure: Add signed*signed check to [u]int128_t test 2013-06-21 22:54:24 +04:00
COPYING
COPYING.LIB
coroutine-gthread.c
coroutine-sigaltstack.c
coroutine-ucontext.c
coroutine-win32.c
cpu-exec.c
cpus.c
cputlb.c
device_tree.c
device-hotplug.c
disas.c
dma-helpers.c
dump.c
exec.c linux-user: Fix compilation failure 2013-06-27 15:38:35 -05:00
gdbstub.c
HACKING
hmp-commands.hx
hmp.c rdma: export throughput w/ MigrationStats QMP 2013-06-27 02:38:36 +02:00
hmp.h
iohandler.c
ioport.c
kvm-all.c
kvm-stub.c
LICENSE
main-loop.c
MAINTAINERS
Makefile Makefile: pass include directives to dtc via CPPFLAGS, not CFLAGS 2013-06-21 22:52:50 +04:00
Makefile.objs
Makefile.target
memory_mapping.c
memory.c
migration-exec.c
migration-fd.c
migration-tcp.c
migration-unix.c
migration.c rdma: introduce capability x-rdma-pin-all 2013-06-27 02:38:36 +02:00
monitor.c
nbd.c
os-posix.c
os-win32.c
page_cache.c
qapi-schema-test.json
qapi-schema.json rdma: introduce capability x-rdma-pin-all 2013-06-27 02:38:36 +02:00
qdev-monitor.c
qdict-test-data.txt
qemu-bridge-helper.c
qemu-char.c qemu-char: use bool in qemu_chr_open_socket and simplify code a bit 2013-06-21 22:52:50 +04:00
qemu-coroutine-io.c rdma: export yield_until_fd_readable() 2013-06-27 02:38:36 +02:00
qemu-coroutine-lock.c
qemu-coroutine-sleep.c
qemu-coroutine.c
qemu-doc.texi
qemu-img-cmds.hx
qemu-img.c
qemu-img.texi
qemu-io-cmds.c
qemu-io.c
qemu-log.c
qemu-nbd.c
qemu-nbd.texi
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx Merge remote-tracking branch 'spice/spice.v71' into staging 2013-06-24 14:33:09 -05:00
qemu-seccomp.c
qemu-tech.texi
qemu-timer.c
qemu.sasl
qmp-commands.hx
qmp.c
qtest.c
readline.c
README
rules.mak
savevm.c rdma: new QEMUFileOps hooks 2013-06-27 02:38:36 +02:00
spice-qemu-char.c
tcg-runtime.c
tci.c
thread-pool.c
thunk.c
tpm.c
trace-events
translate-all.c
translate-all.h
user-exec.c
VERSION
version.rc
vl.c
xbzrle.c
xen-all.c Revert "xen: start PCI hole at 0xe0000000 (same as pc_init1 and qemu-xen-traditional)" 2013-06-25 11:59:42 +00:00
xen-mapcache.c
xen-stub.c Allow use of pc machine type (accel=xen) for Xen HVM domains. 2013-06-25 12:00:48 +00:00

README 

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

- QEMU team