Currently code has to call monitor_fdset_get_fd, then dup
the return fd, and then add the duplicate FD back into the
fdset. This dance is overly verbose for the caller and
introduces extra failure modes which can be avoided by
folding all the logic into monitor_fdset_dup_fd_add and
removing monitor_fdset_get_fd entirely.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Since commit a56650518f ("configure: integrate Meson in the build
system") we replaced many Makefile by Meson files. Adapt the
git.orderfile script to display the new file at the same position.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200907161222.41915-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Fix compiler errors when compiling with -DHPET_DEBUG due to mismatch
between format string token "%x" and the argument type uint64_t.
Also "%#x" is replaced by "0x%" PRIx64 according to the coding style.
Signed-off-by: Dov Murik <dovmurik@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200909083650.46771-3-dovmurik@linux.vnet.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Fix compiler error about defined but not used functions when compiling
with -DHPET_DEBUG by deleting the unused debug functions hpet_ram_readb
and hpet_ram_readw.
Signed-off-by: Dov Murik <dovmurik@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200909083650.46771-2-dovmurik@linux.vnet.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200915171234.236-14-luoyonggang@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
While we are at it move the few places where they are into the
deprecation build bucket.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-9-alex.bennee@linaro.org>
These targets might be deprecated but we should keep them building
before the final axe comes down. Lets keep them all in one place and
don't hold up the CI if they do fail. They are either poorly tested or
already flaky anyway.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200915134317.11110-8-alex.bennee@linaro.org>
The target is already marked as deprecated in the documentation.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-7-alex.bennee@linaro.org>
Rather than sed and loop just do a grep.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-6-alex.bennee@linaro.org>
Now the user has to make an even more deliberate decision to
enable a deprecated target rather than getting it as a side effect of
using --target-exclude-list.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200915134317.11110-5-alex.bennee@linaro.org>
This is the common point at which we validate targets so it makes
sense to add_to deprecated_features here. It will make future target
deprecation easier as we only need to tweak one list.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200915134317.11110-4-alex.bennee@linaro.org>
On macOS, (out of the box) readlink does not have -f. We do not really
need readlink here, though, it was just a replacement for realpath
(which is not available on our BSD test systems), which we needed to
make the $(dirname) into an absolute path.
Instead of using either, just use "cd; pwd" like is done for
$source_iotests.
("iotests: Allow running from different directory")
Fixes: b1cbc33a39
Reported-by: Claudio Fontana <cfontana@suse.de>
Reported-by: Thomas Huth <thuth@redhat.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200914145606.94620-1-mreitz@redhat.com>
Message-Id: <20200915134317.11110-3-alex.bennee@linaro.org>
On older kernels which don't implement MAP_FIXED_NOREPLACE the kernel
may still fail to give us the address we asked for despite having
already probed the map for a valid hole. Asserting isn't particularly
useful to the user so let us move the check up and expand the
error_report a little to give them a fighting chance of working around
the problem.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: Bug 1895080 <1895080@bugs.launchpad.net>
Ameliorates: ee94743034
Message-Id: <20200915134317.11110-2-alex.bennee@linaro.org>
According to
<https://docutils.sourceforge.io/docs/ref/rst/directives.html#parsed-literal>,
"inline markup is recognized and there is no protection from parsing.
Backslash-escapes may be necessary to prevent unintended parsing".
The qemu(1) manual page (formatted with Sphinx 2.2.2) has several overlong
lines on my system. A stand-alone backslash at EOL serves as line
continuation in a "parsed-literal" block. Therefore, escape the
backslashes that we want to appear as such in the formatted documentation.
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200908172111.19072-1-lersek@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We only need to forward-declare kbd_push_key() and kbd_get_leds()
which are used in kbd_interface, not kbd_leds(). Remove this
superfluous forward declaration.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200909171145.350360-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Replace the magic '4' value by the PCI_NUM_PINS definition.
Suggested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200910072325.439344-3-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The max7310_gpio_set() handler is static and only used by
qdev_init_gpio_in, initialized with 8 IRQs. The 'line'
argument can not be out of the [0-8[ range.
Replace the dead code by an assertion.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200910072325.439344-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Currently test-io-channel-socket doesn't init with
qemu_init_main_loop
and that's cause the qemu_aio_context not inited,
and the following is the stack when null pointer accessed:
qemu_fd_register (c:\work\xemu\qemu\util\main-loop.c:336)
qemu_try_set_nonblock (c:\work\xemu\qemu\util\oslib-win32.c:224)
qemu_set_nonblock (c:\work\xemu\qemu\util\oslib-win32.c:230)
socket_can_bind_connect (c:\work\xemu\qemu\tests\socket-helpers.c:93)
socket_check_protocol_support (c:\work\xemu\qemu\tests\socket-helpers.c:141)
main (c:\work\xemu\qemu\tests\test-io-channel-socket.c:568)
__tmainCRTStartup (@__tmainCRTStartup:142)
mainCRTStartup (@1400014f6..140001539:3)
BaseThreadInitThunk (@BaseThreadInitThunk:9)
RtlUserThreadStart (@RtlUserThreadStart:12)
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-18-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The vmstate are valid on win32, just need generate tmp path properly
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200910103059.987-17-luoyonggang@gmail.com>
[thuth: Make indentation a little bit nicer]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-14-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Ideally we would use the '--strip-trailing-cr' option, but not
being POSIX is a portability problem (i.e. BSDs and Solaris
based OSes). Instead use the '-b' option which, although doing
slightly more, produce the expected result on Windows."
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-11-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Do not declare the following locking functions on Win32:
int qemu_lock_fd(int fd, int64_t start, int64_t len, bool exclusive);
int qemu_unlock_fd(int fd, int64_t start, int64_t len);
int qemu_lock_fd_test(int fd, int64_t start, int64_t len, bool exclusive);
bool qemu_has_ofd_lock(void);
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-10-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
They caused failure on msys2/mingw, that's because file-win32.c not implement
.bdrv_reopen_prepare/commit/abort yet.
This is the error message:
> $ ./tests/test-replication.exe
> # random seed: R02S3f4d1c01af2b0a046990e0235c481faf
> 1..13
> # Start of replication tests
> # Start of primary tests
> ok 1 /replication/primary/read
> ok 2 /replication/primary/write
> ok 3 /replication/primary/start
> ok 4 /replication/primary/stop
> ok 5 /replication/primary/do_checkpoint
> ok 6 /replication/primary/get_error_all
> # End of primary tests
> # Start of secondary tests
> ok 7 /replication/secondary/read
> ok 8 /replication/secondary/write
> Unexpected error in bdrv_reopen_prepare() at ../block.c:4191:
> Block format 'file' used by node '#block4287' does not support reopening
> files
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-9-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
On Windows there is no path like /tmp/s_local_disk.XXXXXX
Use g_get_tmp_dir instead of /tmp.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-8-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Disable following tests on msys2/mingw
'test-crypto-tlscredsx509': ['crypto-tls-x509-helpers.c', 'pkix_asn1_tab.c',
tasn1, crypto],
'test-crypto-tlssession': ['crypto-tls-x509-helpers.c', 'pkix_asn1_tab.c', 'crypto-tls-psk-helpers.c',
tasn1, crypto],
'test-io-channel-tls': ['io-channel-helpers.c', 'crypto-tls-x509-helpers.c', 'pkix_asn1_tab.c',
tasn1, io, crypto]}
These tests are failure with:
ERROR test-crypto-tlscredsx509 - missing test plan
ERROR test-crypto-tlssession - missing test plan
ERROR test-io-channel-tls - missing test plan
Because on win32 those test case are all disabled.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20200909094617.1582-12-luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20200907200432.2418-3-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
drain_call_rcu is necessary on win32, because under win32, if you
don't close the file before remove it, the remove would be fail.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20200915121318.247-23-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
g_autofree are prefer than g_free when possible.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915121318.247-17-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This will allow is to preserve the semantics of hmp_device_del,
that the device is deleted immediatly which was changed by previos
patch that delayed this to RCU callback
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Suggested-by: Stefan Hajnoczi <stefanha@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200915121318.247-2-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
When compiling QEMU with MSYS2 on Windows, there is currently the
following error:
../qga/commands-win32.c:62:24: error: redundant redeclaration of
'CM_Get_DevNode_PropertyW' [-Werror=redundant-decls]
62 | CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW(
| ^~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../qga/commands-win32.c:26:
C:/tools/msys64/mingw64/x86_64-w64-mingw32/include/cfgmgr32.h:840:26: note:
previous declaration of 'CM_Get_DevNode_PropertyW' was here
840 | CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW(DEVINST dnDevInst,
const DEVPROPKEY *PropertyKey, DEVPROPTYPE *PropertyType, PBYTE PropertyBuffer,
PULONG PropertyBufferSize, ULONG ulFlags);
Seems like this protype is sometimes available in the cfgmgr32.h
header, and sometimes not. Let's silence the compiler warning here
to let the build pass with -Werror, too.
Message-Id: <20200915114757.55635-1-thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Now that we always do out-of-tree builds (and the in-tree builds are
faked via a "build" directory), we can simplify out .gitignore file
quite a bit.
Message-Id: <20200909080305.258961-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The tests/test-char test is currently always failing on my system since
the getaddrinfo() in socket_can_bind_connect() returns EAI_NONAME when
it is called from socket_check_protocol_support() to check for IPv6.
socket_check_protocol_support() then returns -1 and thus the tests are
not run at all - even though IPv4 is working fine.
socket_can_bind_connect() connect should return EADDRNOTAVAIL in this
case instead, so that socket_check_protocol_support() does not fail.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200908121543.222872-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
We simply want to ignore certain queries here, so let's rather
use the term 'ignore' to express this intention.
Message-Id: <20200914163755.42618-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Telling QTest to log to /dev/fd/2, essentially results in dup(2). This
is fine, if other code isn't logging to stderr. Otherwise, the order of
the logs is mixed due to buffering issues, since two file-descriptors
are used to write to the same file. We can avoid this, since just
specifying "-qtest" sets the log fd to stderr. If we want to disable
qtest logs, we can just add -qtest-log none.
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200819061110.1320568-2-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
On macOS, (out of the box) readlink does not have -f. We do not really
need readlink here, though, it was just a replacement for realpath
(which is not available on our BSD test systems), which we needed to
make the $(dirname) into an absolute path.
Instead of using either, just use "cd; pwd" like is done for
$source_iotests.
Fixes: b1cbc33a39
("iotests: Allow running from different directory")
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reported-by: Claudio Fontana <cfontana@suse.de>
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200914145606.94620-1-mreitz@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Only build virtio-gpu-device modular (the code which actually depends on
the external virglrenderer library). virtio-gpu-pci and virtio-vga are
compiled into core qemu still.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-7-kraxel@redhat.com
Reference it via ops pointer instead, simliar to the vga one.
Removes hard symbol reference, needed to build virtio-gpu modular.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-6-kraxel@redhat.com
We should add sources to the softmmu_ss or module_ss but not both.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-4-kraxel@redhat.com
Use all config symbols not only the host ones.
Needed to make sure device configs like CONFIG_QXL
are used for modules too.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-3-kraxel@redhat.com
Back in 2018 we introduced support for killing the whole QEMU process
instead of just one thread, when a seccomp rule is violated:
commit bda08a5764
Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Date: Wed Aug 22 19:02:48 2018 +0200
seccomp: prefer SCMP_ACT_KILL_PROCESS if available
Fast forward a year and we introduced a patch to avoid killing the
process for resource control syscalls tickled by Mesa.
commit 9a1565a03b
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Wed Mar 13 09:49:03 2019 +0000
seccomp: don't kill process for resource control syscalls
Unfortunately a logic bug effectively reverted the first commit
mentioned so that we go back to only killing the thread, not the whole
process.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Eduardo Otubo <otubo@redhat.com>
- Several qcow2 fixes and refactorings
- Let qemu-img convert try to stay at cluster boundaries
- Stable child names for quorum (with x-blockdev-change)
- Explicitly drop vhdx 4k sector support, as it was never actually
working
- rbd: Mark @namespace a strong runtime option
- iotests.py improvements
- Drop unused runtime_opts objects
- Skip a test case in 030 when run through make check-block
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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-09-15' into staging
Block patches:
- Several qcow2 fixes and refactorings
- Let qemu-img convert try to stay at cluster boundaries
- Stable child names for quorum (with x-blockdev-change)
- Explicitly drop vhdx 4k sector support, as it was never actually
working
- rbd: Mark @namespace a strong runtime option
- iotests.py improvements
- Drop unused runtime_opts objects
- Skip a test case in 030 when run through make check-block
# gpg: Signature made Tue 15 Sep 2020 11:27:05 BST
# gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg: issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
* remotes/maxreitz/tags/pull-block-2020-09-15: (22 commits)
block/rbd: add 'namespace' to qemu_rbd_strong_runtime_opts[]
qcow2: Convert qcow2_alloc_cluster_offset() into qcow2_alloc_host_offset()
qcow2: Make preallocate_co() resize the image to the correct size
block/qcow: remove runtime opts
block/rbd: remove runtime_opts
qcow2: Return the original error code in qcow2_co_pwrite_zeroes()
qcow2: Make qcow2_free_any_clusters() free only one cluster
qcow2: Handle QCowL2Meta on error in preallocate_co()
block/vhdx: Support vhdx image only with 512 bytes logical sector size
iotests: Skip test_stream_parallel in test 030 when doing "make check"
qemu-img: Explicit number replaced by a constant
qcow2: Rewrite the documentation of qcow2_alloc_cluster_offset()
qcow2: Don't check nb_clusters when removing l2meta from the list
qcow2: Fix removal of list members from BDRVQcow2State.cluster_allocs
qcow2: Use macros for the L1, refcount and bitmap table entry sizes
qemu-img: avoid unaligned read requests during convert
block/quorum.c: stable children names
qemu-iotests: Simplify FilePath __init__
qemu-iotests: Merge FilePaths and FilePath
qemu-iotests: Support varargs syntax in FilePaths
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Previous patch introduced a performance warning being logged on host
side if client connected with an 'msize' <= 8192. Disable this
performance warning for the synth driver to prevent that warning from
being printed whenever the 9pfs (qtest) test cases are running.
Introduce a new export flag V9FS_NO_PERF_WARN for that purpose, which
might also be used to disable such warnings from the CLI in future.
We could have also prevented the warning by simply raising P9_MAX_SIZE
in virtio-9p-test.c to any value larger than 8192, however in the
context of test cases it makes sense running for edge cases, which
includes the lowest 'msize' value supported by the server which is
4096, hence we want to preserve an msize of 4096 for the test client.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1kEyDy-0006nN-5A@lizzy.crudebyte.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
It is essential to choose a reasonable high value for 'msize' to avoid
severely degraded file I/O performance. This parameter can only be
chosen on client/guest side, and a Linux client defaults to an 'msize'
of only 8192 if the user did not explicitly specify a value for 'msize',
which results in very poor file I/O performance.
Unfortunately many users are not aware that they should specify an
appropriate value for 'msize' to avoid severe performance issues, so
log a performance warning (with a QEMU wiki link explaining this issue
in detail) on host side in that case to make it more clear.
Currently a client cannot automatically pick a reasonable value for
'msize', because a good value for 'msize' depends on the file I/O
potential of the underlying storage on host side, i.e. a feature
invisible to the client, and even then a user would still need to trade
off between performance profit and additional RAM costs, i.e. with
growing 'msize' (RAM occupation), performance still increases, but
performance delta will shrink continuously.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <e6fc84845c95816ad5baecb0abd6bfefdcf7ec9f.1599144062.git.qemu_oss@crudebyte.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Commit 19ae9ae014 ("block/rbd: Add support for ceph namespaces")
introduced namespace support for RBD, but we forgot to add the
new 'namespace' options to qemu_rbd_strong_runtime_opts[].
The 'namespace' is used to identify the image, so it is a strong
option since it can changes the data of a BDS.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1821528
Fixes: 19ae9ae014 ("block/rbd: Add support for ceph namespaces")
Cc: Florian Florensa <fflorensa@online.net>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200914190553.74871-1-sgarzare@redhat.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
qcow2_alloc_cluster_offset() takes an (unaligned) guest offset and
returns the (aligned) offset of the corresponding cluster in the qcow2
image.
In practice none of the callers need to know where the cluster starts
so this patch makes the function calculate and return the final host
offset directly. The function is also renamed accordingly.
See 388e581615 for a similar change to qcow2_get_cluster_offset().
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-Id: <9bfef50ec9200d752413be4fc2aeb22a28378817.1599833007.git.berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This function preallocates metadata structures and then extends the
image to its new size, but that new size calculation is wrong because
it doesn't take into account that the host_offset variable is always
cluster-aligned.
This problem can be reproduced with preallocation=metadata when the
original size is not cluster-aligned but the new size is. In this case
the final image size will be shorter than expected.
qemu-img create -f qcow2 img.qcow2 31k
qemu-img resize --preallocation=metadata img.qcow2 128k
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-Id: <adeb8b059917b141d5f5b3bd2a016262d3052c79.1599833007.git.berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
[mreitz: Mark compat=0.10 unsupported for iotest 125]
Signed-off-by: Max Reitz <mreitz@redhat.com>
