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2019-11-07iotests: Add test for 4G+ compressed qcow2 writeMax Reitz3-0/+90
Test what qemu-img check says about an image after one has written compressed data to an offset above 4 GB. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20191028161841.1198-3-mreitz@redhat.com Reviewed-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-31Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into stagingPeter Maydell1-2/+4
Pull request # gpg: Signature made Thu 31 Oct 2019 15:55:44 GMT # gpg: using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E # gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full] # Primary key fingerprint: FAEB 9711 A12C F475 812F 18F2 88A9 064D 1835 61EB # Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76 CBD0 7DEF 8106 AAFC 390E * remotes/jnsnow/tags/ide-pull-request: hd-geo-test: Add tests for lchs override bootdevice: FW_CFG interface for LCHS values bootdevice: Refactor get_boot_devices_list bootdevice: Gather LCHS from all relevant devices scsi: Propagate unrealize() callback to scsi-hd bootdevice: Add interface to gather LCHS block: Support providing LCHS from user block: Refactor macros - fix tabbing IDE: deprecate ide-drive Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-31iotests: Remove 130 from the "auto" groupThomas Huth1-1/+1
Peter hit a "Could not open 'TEST_DIR/t.IMGFMT': Failed to get shared 'write' lock - Is another process using the image [TEST_DIR/t.IMGFMT]?" error with 130 already twice. Looks like this test is a little bit shaky, and currently nobody has a real clue what could be causing this issue, so for the time being, let's disable it from the "auto" group so that it does not gate the pull requests. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-31IDE: deprecate ide-driveJohn Snow1-2/+4
It's an old compatibility shim that just delegates to ide-cd or ide-hd. I'd like to refactor these some day, and getting rid of the super-object will make that easier. Either way, we don't need this. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> ACKed-by: Peter Krempa <pkrempa@redhat.com> Message-id: 20191009224303.10232-2-jsnow@redhat.com Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-28qemu-iotests: restrict 264 to qcow2 onlyVladimir Sementsov-Ogievskiy1-0/+2
264 is unprepared to run with different formats, for example luks needs handling keys, cloop doesn't support image creation, vpc creates image larger than requested (which breaks "Backup completed: 5242880" in test output). The test is here to check nbd-reconnect feature and we actually don't need it for all formats. Let's restrict it to qcow2 only. Reported-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 20191025145023.6182-1-vsementsov@virtuozzo.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Test qcow2's snapshot table handlingMax Reitz3-0/+870
Add a test how our qcow2 driver handles extra data in snapshot table entries, and how it repairs overly long snapshot tables. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191011152814.14791-17-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Add peek_file* functionsMax Reitz1-0/+20
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191011152814.14791-16-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Drop TEST_DIR filter from _filter_nbdMax Reitz1-1/+0
Sockets should be placed into $SOCK_DIR instead of $TEST_DIR, so remove the $TEST_DIR filter from _filter_nbd. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-24-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/267: Create socket in $SOCK_DIRMax Reitz2-3/+3
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-23-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/240: Create socket in $SOCK_DIRMax Reitz1-2/+2
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-22-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/223: Create socket in $SOCK_DIRMax Reitz1-7/+7
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-21-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/222: Create socket in $SOCK_DIRMax Reitz1-1/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-20-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/209: Create socket in $SOCK_DIRMax Reitz1-1/+2
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-19-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/208: Create socket in $SOCK_DIRMax Reitz1-1/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-18-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/205: Create socket in $SOCK_DIRMax Reitz1-1/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-17-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/201: Create socket in $SOCK_DIRMax Reitz1-1/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-16-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/194: Create sockets in $SOCK_DIRMax Reitz1-2/+2
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-15-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/192: Create socket in $SOCK_DIRMax Reitz2-3/+3
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-14-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/183: Create socket in $SOCK_DIRMax Reitz1-1/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-13-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/182: Create socket in $SOCK_DIRMax Reitz1-2/+2
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-12-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/181: Create socket in $SOCK_DIRMax Reitz1-1/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-11-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/147: Create socket in $SOCK_DIRMax Reitz1-1/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-10-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/143: Create socket in $SOCK_DIRMax Reitz2-4/+4
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-9-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/140: Create socket in $SOCK_DIRMax Reitz2-5/+5
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-8-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests/083: Create socket in $SOCK_DIRMax Reitz2-20/+20
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-7-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Let common.nbd create socket in $SOCK_DIRMax Reitz2-3/+1
In addition, drop the nbd_unix_socket assignment in 241 because it does not really do anything. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-6-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Filter $SOCK_DIRMax Reitz1-1/+5
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-5-mreitz@redhat.com Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests.py: Add @base_dir to FilePaths etc.Max Reitz1-6/+6
Specifying this optional parameter allows creating temporary files in other directories than the test_dir; for example in sock_dir. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20191017133155.5327-4-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests.py: Store socket files in $SOCK_DIRMax Reitz1-1/+3
iotests.py itself does not store socket files, but machine.py and qtest.py do. iotests.py needs to pass the respective path to them, and they need to adhere to it. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20191017133155.5327-3-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Introduce $SOCK_DIRMax Reitz1-2/+13
Unix sockets generally have a maximum path length. Depending on your $TEST_DIR, it may be exceeded and then all tests that create and use Unix sockets there may fail. Circumvent this by adding a new scratch directory specifically for Unix socket files. It defaults to a temporary directory (mktemp -d) that is completely removed after the iotests are done. (By default, mktemp -d creates a /tmp/tmp.XXXXXXXXXX directory, which should be short enough for our use cases.) Use mkdir -p to create the directory (because it seems right), and do the same for $TEST_DIR (because there is no reason for that to be created in any different way). Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20191017133155.5327-2-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Cache supported_formats()Max Reitz1-3/+11
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Message-id: 20190917092004.999-8-mreitz@redhat.com Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Test driver whitelisting in 136Max Reitz1-4/+10
null-aio may not be whitelisted. Skip all test cases that require it. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190917092004.999-7-mreitz@redhat.com Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Test driver whitelisting in 093Max Reitz1-3/+9
null-aio may not be whitelisted. Skip all test cases that require it. (And skip the whole test if null-co is not whitelisted.) Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190917092004.999-6-mreitz@redhat.com Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Let skip_if_unsupported accept a functionMax Reitz1-2/+6
This lets tests use skip_if_unsupported() with a potentially variable list of required formats. Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190917092004.999-5-mreitz@redhat.com Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Use case_skip() in skip_if_unsupported()Max Reitz1-4/+4
skip_if_unsupported() should use the stronger variant case_skip(), because this allows it to be used even with setUp() (in a meaningful way). In the process, make it explicit what we expect the first argument of the func_wrapper to be (namely something derived of QMPTestCase). Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190917092004.999-4-mreitz@redhat.com Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Allow skipping test casesMax Reitz1-3/+19
case_notrun() does not actually skip the current test case. It just adds a "notrun" note and then returns to the caller, who manually has to skip the test. Generally, skipping a test case is as simple as returning from the current function, but not always: For example, this model does not allow skipping tests already in the setUp() function. Thus, add a QMPTestCase.case_skip() function that invokes case_notrun() and then self.skipTest(). To make this work, we need to filter the information on how many test cases were skipped from the unittest output. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Message-id: 20190917092004.999-3-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28iotests: Prefer null-co over null-aioMax Reitz2-5/+4
We use null-co basically everywhere in the iotests. Unless we want to test null-aio specifically, we should use it instead (for consistency). Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20190917092004.999-2-mreitz@redhat.com Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-25iotests: Skip read-only cases in 118 when run as rootKevin Wolf2-0/+13
Some tests in 118 use chmod to remove write permissions from the file and assume that the image can indeed not be opened read-write afterwards. This doesn't work when the test is run as root, because root can still open the file as writable even when the permission bit isn't set. Introduce a @skip_if_root decorator and use it in 118 to skip the tests in question when the script is run as root. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-22iotests: test nbd reconnectVladimir Sementsov-Ogievskiy4-0/+120
Add test, which starts backup to nbd target and restarts nbd server during backup. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20191009084158.15614-4-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2019-10-17iotests: add test 260 to check bitmap life after snapshot + commitVladimir Sementsov-Ogievskiy3-0/+142
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 20190927122355.7344-8-vsementsov@virtuozzo.com [Maintainer edit: removed 260 from auto group per Peter Maydell. --js] Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-17iotests: add test-case to 165 to test reopening qcow2 bitmaps to RWVladimir Sementsov-Ogievskiy2-4/+57
Reopening bitmaps to RW was broken prior to previous commit. Check that it works now. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 20190927122355.7344-4-vsementsov@virtuozzo.com Signed-off-by: John Snow <jsnow@redhat.com>
2019-10-14iotests: Test large write request to qcow2 fileMax Reitz3-0/+93
Without HEAD^, the following happens when you attempt a large write request to a qcow2 file such that the number of bytes covered by all clusters involved in a single allocation will exceed INT_MAX: (A) handle_alloc_space() decides to fill the whole area with zeroes and fails because bdrv_co_pwrite_zeroes() fails (the request is too large). (B) If handle_alloc_space() does not do anything, but merge_cow() decides that the requests can be merged, it will create a too long IOV that later cannot be written. (C) Otherwise, all parts will be written separately, so those requests will work. In either B or C, though, qcow2_alloc_cluster_link_l2() will have an overflow: We use an int (i) to iterate over nb_clusters, and then calculate the L2 entry based on "i << s->cluster_bits" -- which will overflow if the range covers more than INT_MAX bytes. This then leads to image corruption because the L2 entry will be wrong (it will be recognized as a compressed cluster). Even if that were not the case, the .cow_end area would be empty (because handle_alloc() will cap avail_bytes and nb_bytes at INT_MAX, so their difference (which is the .cow_end size) will be 0). So this test checks that on such large requests, the image will not be corrupted. Unfortunately, we cannot check whether COW will be handled correctly, because that data is discarded when it is written to null-co (but we have to use null-co, because writing 2 GB of data in a test is not quite reasonable). Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-10-14iotests/028: Fix for long $TEST_DIRsMax Reitz2-4/+8
For long test image paths, the order of the "Formatting" line and the "(qemu)" prompt after a drive_backup HMP command may be reversed. In fact, the interaction between the prompt and the line may lead to the "Formatting" to being greppable at all after "read"-ing it (if the prompt injects an IFS character into the "Formatting" string). So just wait until we get a prompt. At that point, the block job must have been started, so "info block-jobs" will only return "No active jobs" once it is done. Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-10-14block: Reject misaligned write requests with BDRV_REQ_NO_FALLBACKAlberto Garcia3-0/+63
The BDRV_REQ_NO_FALLBACK flag means that an operation should only be performed if it can be offloaded or otherwise performed efficiently. However a misaligned write request requires a RMW so we should return an error and let the caller decide how to proceed. This hits an assertion since commit c8bb23cbdb if the required alignment is larger than the cluster size: qemu-img create -f qcow2 -o cluster_size=2k img.qcow2 4G qemu-io -c "open -o driver=qcow2,file.align=4k blkdebug::img.qcow2" \ -c 'write 0 512' qemu-io: block/io.c:1127: bdrv_driver_pwritev: Assertion `!(flags & BDRV_REQ_NO_FALLBACK)' failed. Aborted The reason is that when writing to an unallocated cluster we try to skip the copy-on-write part and zeroize it using BDRV_REQ_NO_FALLBACK instead, resulting in a write request that is too small (2KB cluster size vs 4KB required alignment). Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-10-10iotests/162: Fix for newer Linux 5.3+Max Reitz2-2/+2
Linux 5.3 has made 0.0.0.0/8 a working IPv4 subnet. As such, "42" is now a valid host, and the connection to it will (hopefully) time out over a long period rather than quickly return with EINVAL. So let us use a negative integer for testing that NBD will not crash when it receives integer hosts. This way, the connection will again fail quickly and reliably. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20191002174052.5773-1-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10tests: fix I/O test for hosts defaulting to LUKSv2Daniel P. Berrangé2-23/+23
Some distros are now defaulting to LUKS version 2 which QEMU cannot process. For our I/O test that validates interoperability between the kernel/cryptsetup and QEMU, we need to explicitly ask for version 1 of the LUKS format. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-id: 20190927101155.25896-1-berrange@redhat.com Tested-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10block/backup: use backup-top instead of write notifiersVladimir Sementsov-Ogievskiy4-160/+163
Drop write notifiers and use filter node instead. = Changes = 1. Add filter-node-name argument for backup qmp api. We have to do it in this commit, as 257 needs to be fixed. 2. There are no more write notifiers here, so is_write_notifier parameter is dropped from block-copy paths. 3. To sync with in-flight requests at job finish we now have drained removing of the filter, we don't need rw-lock. 4. Block-copy is now using BdrvChildren instead of BlockBackends 5. As backup-top owns these children, we also move block-copy state into backup-top's ownership. = Iotest changes = 56: op-blocker doesn't shoot now, as we set it on source, but then check on filter, when trying to start second backup. To keep the test we instead can catch another collision: both jobs will get 'drive0' job-id, as job-id parameter is unspecified. To prevent interleaving with file-posix locks (as they are dependent on config) let's use another target for second backup. Also, it's obvious now that we'd like to drop this op-blocker at all and add a test-case for two backups from one node (to different destinations) actually works. But not in these series. 141: Output changed: prepatch, "Node is in use" comes from bdrv_has_blk check inside qmp_blockdev_del. But we've dropped block-copy blk objects, so no more blk objects on source bs (job blk is on backup-top filter bs). New message is from op-blocker, which is the next check in qmp_blockdev_add. 257: The test wants to emulate guest write during backup. They should go to filter node, not to original source node, of course. Therefore we need to specify filter node name and use it. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 20191001131409.14202-6-vsementsov@virtuozzo.com Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10iotests: Use stat -c %b in 125Max Reitz1-2/+1
125 should not use qemu-img to get the on-disk image size, because that reports it in a human-readable format that is useless to us. Just use stat instead (like we do to get the image file length). Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190925183231.11196-4-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10iotests: Disable 125 on broken XFS versionsMax Reitz1-0/+40
And by that I mean all XFS versions, as far as I can tell. All details are in the comment below. We never noticed this problem because we only read the first number from qemu-img info's "disk size" output -- and that is effectively useless, because qemu-img prints a human-readable value (which generally includes a decimal point). That will be fixed in the next patch. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190925183231.11196-3-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10iotests: Fix 125 for growth_mode = metadataMax Reitz1-1/+1
If we use growth_mode = metadata, it is very much possible that the file uses more disk space after we have written something to the added area. We did indeed want to test for this case, but unfortunately we evidently just copied the code from the "Test creation preallocation" section and forgot to replace "$create_mode" by "$growth_mode". We never noticed because we only read the first number from qemu-img info's "disk size" output -- and that is effectively useless, because qemu-img prints a human-readable value (which generally includes a decimal point). That will be fixed in the patch after the next one. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190925183231.11196-2-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>