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Peter Lieven 095e4fa4b5 block: limited request size in write zeroes unsupported path 
If bs->bl.max_write_zeroes is large and we end up in the unsupported
path we might allocate a lot of memory for the iovector and/or even
generate an oversized requests.

Fix this by limiting the request by the minimum of the reported
maximum transfer size or 16MB (32768 sectors).

Reported-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Message-id: 1420457389-16332-1-git-send-email-pl@kamp.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-01-13 13:43:29 +00:00
audio
audio: Don't free hw resources until after hw backend is stopped
2014-12-22 23:12:25 +00:00
backends
Drop superfluous conditionals around g_strdup()
2014-12-10 11:30:55 +03:00
block
coroutine: drop qemu_coroutine_adjust_pool_size
2015-01-13 13:43:29 +00:00
bsd-user
…
default-configs
s390: Add PCI bus support
2015-01-12 10:14:04 +01:00
disas
disas/mips: disable unused mips16_to_32_reg_map[]
2014-12-16 12:45:20 +00:00
docs
pci: move REDHAT_SDHCI device ID to make room for Rocker
2015-01-03 09:22:13 +01:00
dtc @ bc895d6d09
…
fpu
…
fsdev
…
gdb-xml
…
hw
-----BEGIN PGP SIGNATURE-----
2015-01-12 11:13:24 +00:00
include
coroutine: drop qemu_coroutine_adjust_pool_size
2015-01-13 13:43:29 +00:00
libcacard
libcacard: fix resource leak
2014-11-14 12:15:40 +01:00
libdecnumber
…
linux-headers
linux-headers: update to 3.18-rc5
2014-11-18 11:24:31 +00:00
linux-user
linux-user: Use the 5KEf processor for 64-bit emulation
2014-12-16 12:45:20 +00:00
migration
migration/block: fix pending() return value
2015-01-13 11:47:56 +00:00
net
net: Use g_new() & friends where that makes obvious sense
2014-12-19 13:17:02 +00:00
pc-bios
pseries: Update SLOF firmware image to 20141202
2015-01-07 16:16:27 +01:00
pixman @ 87eea99e44
…
po
…
qapi
qmp: Add command 'blockdev-backup'
2015-01-13 11:47:56 +00:00
qga
qga: fix false negative argument passing
2014-11-17 11:41:25 +01:00
qobject
qjson: Drop trailing space for pretty formatting
2014-12-10 10:25:30 +01:00
qom
cpu: initialize cpu->exception_index on reset
2014-12-20 20:38:07 +00:00
roms
pseries: Update SLOF firmware image to 20141202
2015-01-07 16:16:27 +01:00
scripts
checkpatch: Brace handling on multi-line condition
2015-01-13 11:47:56 +00:00
slirp
…
stubs
…
sysconfigs/target
…
target-alpha
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-arm
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-cris
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-i386
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-lm32
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-m68k
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-microblaze
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-mips
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-moxie
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-openrisc
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-ppc
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-s390x
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
target-sh4
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-sparc
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-tricore
More migration fixes and more record/replay preparations. Also moves
2015-01-09 16:29:36 +00:00
target-unicore32
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
target-xtensa
gen-icount: check cflags instead of use_icount global
2015-01-03 09:22:12 +01:00
tcg
tcg: add separate monitor command to dump opcode counters
2014-12-17 05:49:32 +03:00
tests
test-coroutine: avoid overflow on 32-bit systems
2015-01-13 13:43:29 +00:00
trace
…
ui
sdl2: fixes, cleanups and opengl preparation.
2014-12-21 23:17:00 +00:00
util
qemu-thread: add per-thread atexit functions
2015-01-13 13:43:29 +00:00
.exrc
…
.gitignore
.gitignore: Ignore generated "common.env"
2015-01-13 13:43:28 +00:00
.gitmodules
…
.mailmap
…
.travis.yml
…
accel.c
…
aio-posix.c
block: Use g_new0() for a bit of extra type checking
2014-12-10 10:31:21 +01:00
aio-win32.c
block: Use g_new0() for a bit of extra type checking
2014-12-10 10:31:21 +01:00
arch_init.c
arch_init: support resizing on incoming migration
2015-01-08 13:17:54 +02:00
async.c
block: replace g_new0 with g_new for bottom half allocation.
2015-01-13 11:47:56 +00:00
balloon.c
…
block.c
block: limited request size in write zeroes unsupported path
2015-01-13 13:43:29 +00:00
blockdev-nbd.c
nbd: Change external interface to BlockBackend
2014-12-10 10:31:12 +01:00
blockdev.c
block: Add blockdev-backup to transaction
2015-01-13 11:47:56 +00:00
blockjob.c
…
bootdevice.c
bootdevice: add Error **errp argument for QEMUBootSetHandler
2014-12-22 14:39:21 +08:00
bt-host.c
…
bt-vhci.c
…
Changelog
…
CODING_STYLE
…
configure
seccomp: typo in configure error message
2015-01-05 18:08:27 +01:00
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
…
coroutine-sigaltstack.c
coroutine-sigaltstack: Change jmp_buf to sigjmp_buf
2014-11-11 11:07:55 +03:00
coroutine-ucontext.c
coroutine-ucontext: use __thread
2015-01-13 13:43:28 +00:00
coroutine-win32.c
…
cpu-exec.c
cpu-exec: invalidate nocache translation if they are interrupted
2014-12-15 12:21:02 +01:00
cpus.c
cpu: initialize cpu->exception_index on reset
2014-12-20 20:38:07 +00:00
cputlb.c
qemu-log: add log category for MMU info
2014-12-16 18:43:19 +00:00
device_tree.c
device-tree: fix memory leak
2015-01-07 16:16:26 +01:00
device-hotplug.c
…
disas.c
…
dma-helpers.c
…
dump.c
…
exec.c
pc: resizeable ROM blocks
2015-01-10 21:02:23 +00:00
gdbstub.c
Add the "-semihosting-config" option.
2014-12-11 12:07:48 +00:00
HACKING
…
hmp-commands.hx
…
hmp.c
block/hmp: Allow node-name in 'info block'
2014-12-10 10:31:11 +01:00
hmp.h
…
iohandler.c
…
ioport.c
…
iothread.c
…
kvm-all.c
kvm: extend kvm_irqchip_add_msi_route to work on s390
2015-01-12 10:14:04 +01:00
kvm-stub.c
pc: kvm: check if KVM has free memory slots to avoid abort()
2014-11-23 12:11:29 +02:00
LICENSE
vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio
2014-12-19 15:24:06 -07:00
main-loop.c
…
MAINTAINERS
s390: Add PCI bus support
2015-01-12 10:14:04 +01:00
Makefile
…
Makefile.objs
Start migrating migration code into a migration directory
2014-12-16 17:47:36 +05:30
Makefile.target
…
memory_mapping.c
…
memory.c
memory: API to allocate resizeable RAM MR
2015-01-08 13:17:55 +02:00
module-common.c
…
monitor.c
bootdevice: add Error **errp argument for qemu_boot_set()
2014-12-22 14:39:20 +08:00
nbd.c
nbd: Use BlockBackend internally
2014-12-10 10:31:12 +01:00
numa.c
numa: make 'info numa' take into account hotplugged memory
2014-11-11 08:50:58 +03:00
os-posix.c
…
os-win32.c
…
page_cache.c
…
qapi-schema.json
block: Add blockdev-backup to transaction
2015-01-13 11:47:56 +00:00
qdev-monitor.c
qdev: Use qdev_get_device_class() for -device <type>,help
2014-11-04 17:50:00 +01:00
qdict-test-data.txt
…
qemu-bridge-helper.c
…
qemu-char.c
Drop superfluous conditionals around qemu_opts_del()
2014-12-10 11:27:02 +03:00
qemu-coroutine-io.c
…
qemu-coroutine-lock.c
…
qemu-coroutine-sleep.c
…
qemu-coroutine.c
coroutine: try harder not to delete coroutines
2015-01-13 13:43:29 +00:00
qemu-doc.texi
block: vhdx - change .vhdx_create default block state to ZERO
2014-12-12 15:42:49 +00:00
qemu-img-cmds.hx
…
qemu-img.c
qemu-img: Check create_opts before image amendment
2014-12-10 10:31:20 +01:00
qemu-img.texi
…
qemu-io-cmds.c
qemu-io: Add sigraise command
2014-12-12 15:48:26 +00:00
qemu-io.c
qemu-io: Allow explicitly specifying format
2014-12-10 10:31:12 +01:00
qemu-log.c
qemu-log: add log category for MMU info
2014-12-16 18:43:19 +00:00
qemu-nbd.c
qemu-nbd: Use BlockBackend where reasonable
2014-12-10 10:31:12 +01:00
qemu-nbd.texi
…
qemu-options-wrapper.h
…
qemu-options.h
…
qemu-options.hx
target-arm queue:
2014-12-11 16:47:23 +00:00
qemu-seccomp.c
seccomp: add mbind() to the syscall whitelist
2015-01-05 18:13:38 +01:00
qemu-tech.texi
…
qemu-timer.c
- Migration and linuxboot fixes for 2.2 regressions
2014-12-15 16:43:42 +00:00
qemu.nsi
…
qemu.sasl
…
qmp-commands.hx
qmp: Add command 'blockdev-backup'
2015-01-13 11:47:56 +00:00
qmp.c
…
qtest.c
…
README
…
rules.mak
…
savevm.c
…
softmmu_template.h
…
spice-qemu-char.c
spice: remove spice-experimental.h include
2014-12-16 14:15:29 +01:00
tcg-runtime.c
…
tci.c
…
thread-pool.c
…
thunk.c
…
tpm.c
…
trace-events
hw/vfio: create common module
2014-12-22 09:54:51 -07:00
translate-all.c
translate: check cflags instead of use_icount global
2015-01-03 09:22:10 +01:00
translate-all.h
…
user-exec.c
…
VERSION
Open 2.3 development tree
2014-12-09 21:48:34 +00:00
version.rc
…
vl.c
hw/usb: simplified usb_enabled
2015-01-08 17:32:27 +00:00
xen-common-stub.c
…
xen-common.c
…
xen-hvm-stub.c
…
xen-hvm.c
xen-hvm: Remove redundant variable 'xstate'
2014-11-11 17:34:53 +03:00
xen-mapcache.c
…

README 

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

- QEMU team
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