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2019-03-08qemu-iotests: Improve portability by searching bash in the $PATHPhilippe Mathieu-Daudé
Bash is not always installed as /bin/bash. In particular on OpenBSD, the package installs it in /usr/local/bin. Use the 'env' shebang to search bash in the $PATH. Patch created mechanically by running: $ git grep -lE '#! ?/bin/bash' -- tests/qemu-iotests \ | while read f; do \ sed -i 's|^#!.\?/bin/bash$|#!/usr/bin/env bash|' $f; \ done Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-11-19iotests: Drop use of bash keyword 'function'Eric Blake
Bash allows functions to be declared with or without the leading keyword 'function'; but including the keyword does not comply with POSIX syntax, and is confusing to ksh users where the use of the keyword changes the scoping rules for functions. Stick to the POSIX form through iotests. Done mechanically with: sed -i 's/^function //' $(git ls-files tests/qemu-iotests) Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20181116215002.2124581-1-eblake@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2018-11-19qemu-iotests: remove unused variable 'here'Mao Zhongyi
Running git grep '\$here' tests/qemu-iotests has 0 hits, which means we are setting a variable that has no use. It appears that commit e8f8624d removed the last use. So execute the following cmd to remove all of the 'here=...' lines as dead code. sed -i '/^here=/d' $(git grep -l '^here=' tests/qemu-iotests) Cc: kwolf@redhat.com Cc: mreitz@redhat.com Cc: eblake@redhat.com Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com> Message-Id: <20181024094051.4470-3-maozhongyi@cmss.chinamobile.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: touch up commit message, reorder series, rebase to master] Signed-off-by: Eric Blake <eblake@redhat.com>
2017-07-24block: Use JSON null instead of "" to disable backing fileMarkus Armbruster
BlockdevRef is an alternate of BlockdevOptions (inline definition) and str (reference to an existing block device by name). BlockdevRef value "" is special: "no block device should be referenced." It's actually interpreted that way in just one place: optional member @backing of COW formats. Semantics: * Present means "use this block device" as backing storage * Absent means "default to the one stored in the image" * Except "" means "don't use backing storage at all" The first two are perfectly normal: when the parameter is absent, it defaults to an implied value, but the value's meaning is the same. The third one overloads the parameter with a second meaning. The overloading is *implicit*, i.e. it's not visible in the types. Works here, because "" is not a value block device ID. Pressing argument values the schema accepts, but are semantically invalid, into service to mean "do something else entirely" is not general, as suitable invalid values need not exist. I also find it ugly. To clean this up, we could add a separate flag argument to suppress @backing, or add a distinct value to @backing. This commit implements the latter: add JSON null to the values of @backing, deprecate "". Because we're so close to the 2.10 freeze, implement it in the stupidest way possible: have qmp_blockdev_add() rewrite null to "" before anything else can see the null. Works, because BlockdevRef occurs only within arguments of blockdev-add. The proper way to do it would be rewriting "" to null, preferably in a cleaner way, but that requires fixing up code to work with null. Add a TODO comment for that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-07-18qemu-img: Check for backing image if specified during createJohn Snow
Or, rather, force the open of a backing image if one was specified for creation. Using a similar -unsafe option as rebase, allow qemu-img to ignore the backing file validation if possible. It may not always be possible, as in the existing case when a filesize for the new image was not specified. This is accomplished by shifting around the conditionals in bdrv_img_create, such that a backing file is always opened unless we provide BDRV_O_NO_BACKING. qemu-img is adjusted to pass this new flag when -u is provided to create. Sorry for the heinous looking diffstat, but it's mostly whitespace. Inspired by: https://bugzilla.redhat.com/show_bug.cgi?id=1213786 Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-05-11iotests: 085: Avoid image locking conflictFam Zheng
In the case where we test the expected error when a blockdev-snapshot target already has a backing image, the backing chain is opened multiple times. This will be a problem when we use image locking, so use a different backing file that is not already open. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-10-24block: Remove "options" indirection from blockdev-addKevin Wolf
Now that QAPI supports boxed types, we can have unions at the top level of a command, so let's put our real options directly there for blockdev-add instead of having a single "options" dict that contains the real arguments. blockdev-add is still experimental and we already made substantial changes to the API recently, so we're free to make changes like this one, too. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-11-11block: test 'blockdev-snapshot' using a file BDS as the overlayAlberto Garcia
This test checks that it is not possible to create a snapshot if the requested overlay node is a BDS which does not support backing images. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11block: Remove inner quotation marks in iotest 085Alberto Garcia
This patch removes the inner quotation marks in all cases like this: cmd=" ... "${variable}" ... " Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11block: add tests for the 'blockdev-snapshot' commandAlberto Garcia
Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-05-09block: qemu-iotests - update 085 to use common.qemuJeff Cody
The new functionality of common.qemu implements the QEMU control and communication functionality that was originally in test 085. This removes that now-duplicate functionality, and uses the common.qemu functions. The QEMU commandline changes slightly due to this; in addition to monitor and qmp i/o options, the new QEMU commandline from inside common.qemu now introduces -machine accel=qtest. Reviewed-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-03-07block: qemu-iotests 085 - live snapshots testsJeff Cody
This adds tests for live snapshots, both through the single snapshot command, and the transaction group snapshot command. The snapshots are done through the QMP interface, using the following commands for snapshots: Single snapshot: { 'execute': 'blockdev-snapshot-sync', 'arguments': { 'device': 'virtio0', 'snapshot-file':'...', 'format': 'qcow2' } }" Group snapshot: { 'execute': 'transaction', 'arguments': {'actions': [ { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio0', 'snapshot-file': '...' } }, { 'type': 'blockdev-snapshot-sync', 'data' : { 'device': 'virtio1', 'snapshot-file': '...' } } ] } } Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Kevin Wolf <kwolf@redhat.com>