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* Include qemu-common.h exactly where neededMarkus Armbruster2019-06-121-0/+1
| | | | | | | | | | | | | | | | No header includes qemu-common.h after this commit, as prescribed by qemu-common.h's file comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-5-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and net/tap-bsd.c fixed up]
* qemu-img: Saner printing of large file sizesEric Blake2019-04-301-38/+11Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Disk sizes close to INT64_MAX cause overflow, for some pretty ridiculous output: $ ./nbdkit -U - memory size=$((2**63 - 512)) --run 'qemu-img info $nbd' image: nbd+unix://?socket=/tmp/nbdkitHSAzNz/socket file format: raw virtual size: -8388607T (9223372036854775296 bytes) disk size: unavailable But there's no reason to have two separate implementations of integer to human-readable abbreviation, where one has overflow and stops at 'T', while the other avoids overflow and goes all the way to 'E'. With this patch, the output now claims 8EiB instead of -8388607T, which really is the correct rounding of largest file size supported by qemu (we could go 511 bytes larger if we used byte-accurate sizing instead of rounding up to the next sector boundary, but that wouldn't change the human-readable result). Quite a few iotests need updates to expected output to match. Reported-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> Tested-by: Richard W.M. Jones <rjones@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Tested-by: Max Reitz <mreitz@redhat.com>
* block/qapi: Clean up how we print to monitor or stdoutMarkus Armbruster2019-04-181-65/+55Star
| | | | | | | | | | | | | | | | | | | bdrv_snapshot_dump(), bdrv_image_info_specific_dump(), bdrv_image_info_dump() and their helpers take an fprintf()-like callback and a FILE * to pass to it. hmp.c passes monitor_printf() cast to fprintf_function and the current monitor cast to FILE *. qemu-img.c and qemu-io-cmds.c pass fprintf and stdout. The type-punning is technically undefined behaviour, but works in practice. Clean up: drop the callback, and call qemu_printf() instead. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190417191805.28198-8-armbru@redhat.com>
* qapi: drop x- from x-block-latency-histogram-setVladimir Sementsov-Ogievskiy2019-03-121-6/+6
| | | | | | | | Drop x- and x_ prefixes for latency histograms and update version to 4.0 Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* block: bdrv_get_full_backing_filename's ret. val.Max Reitz2019-02-251-10/+2Star
| | | | | | | | | | Make bdrv_get_full_backing_filename() return an allocated string instead of placing the result in a caller-provided buffer. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20190201192935.18394-12-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
* block: Use bdrv_refresh_filename() to pullMax Reitz2019-02-251-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this patch, bdrv_refresh_filename() is used in a pushing manner: Whenever the BDS graph is modified, the parents of the modified edges are supposed to be updated (recursively upwards). However, that is nonviable, considering that we want child changes not to concern parents. Also, in the long run we want a pull model anyway: Here, we would have a bdrv_filename() function which returns a BDS's filename, freshly constructed. This patch is an intermediate step. It adds bdrv_refresh_filename() calls before every place a BDS.filename value is used. The only exceptions are protocol drivers that use their own filename, which clearly would not profit from refreshing that filename before. Also, bdrv_get_encrypted_filename() is removed along the way (as a user of BDS.filename), since it is completely unused. In turn, all of the calls to bdrv_refresh_filename() before this patch are removed, because we no longer have to call this function on graph changes. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190201192935.18394-2-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
* bdrv_query_image_info Error parameter addedAndrey Shinkevich2019-02-111-1/+6
| | | | | | | | | | | | | Inform a user in case qcow2_get_specific_info fails to obtain QCOW2 image specific information. This patch is preliminary to the one "qcow2: Add list of bitmaps to ImageInfoSpecificQCow2". Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <1549638368-530182-2-git-send-email-andrey.shinkevich@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
* block/qapi: Fix memory leak in qmp_query_blockstats()Kevin Wolf2018-08-151-1/+2
| | | | | | | | | | | For BlockBackends that are skipped in query-blockstats, we would leak info since commit 567dcb31. Allocate info only later to avoid the memory leak. Fixes: CID 1394727 Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com>
* block/qapi: Include anonymous BBs in query-blockstatsKevin Wolf2018-07-301-1/+5
| | | | | | | | | Consistent with query-block, query-blockstats should not only include named BlockBackends, but also those that are anonymous, but belong to a device model. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* block/qapi: Add 'qdev' field to query-blockstats resultKevin Wolf2018-07-301-0/+10
| | | | | | | | | | Like for query-block, the client needs to identify which BlockBackend the returned data is for. Anonymous BlockBackends are identified by the device model they are attached to. Add a 'qdev' field that contains the qdev ID or QOM path of the attached device model. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREFMarc-André Lureau2018-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | Now that we can safely call QOBJECT() on QObject * as well as its subtypes, we can have macros qobject_ref() / qobject_unref() that work everywhere instead of having to use QINCREF() / QDECREF() for QObject and qobject_incref() / qobject_decref() for its subtypes. The replacement is mechanical, except I broke a long line, and added a cast in monitor_qmp_cleanup_req_queue_locked(). Unlike qobject_decref(), qobject_unref() doesn't accept void *. Note that the new macros evaluate their argument exactly once, thus no need to shout them. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180419150145.24795-4-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Rebased, semantic conflict resolved, commit message improved] Signed-off-by: Markus Armbruster <armbru@redhat.com>
* qapi: add block latency histogram interfaceVladimir Sementsov-Ogievskiy2018-03-191-0/+41
| | | | | | | | | | | | | | | | | Set (and clear) histograms through new command block-latency-histogram-set and show new statistics in query-blockstats results. For now, the command is marked experimental with prefix 'x-', to gain experience with the interface without being stuck with design decisions. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20180309165212.97144-3-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> [eblake: fix typos, mention x- prefix in commit message] Signed-off-by: Eric Blake <eblake@redhat.com>
* qapi: Replace qobject_to_X(o) by qobject_to(X, o)Max Reitz2018-03-191-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch was generated using the following Coccinelle script: @@ expression Obj; @@ ( - qobject_to_qnum(Obj) + qobject_to(QNum, Obj) | - qobject_to_qstring(Obj) + qobject_to(QString, Obj) | - qobject_to_qdict(Obj) + qobject_to(QDict, Obj) | - qobject_to_qlist(Obj) + qobject_to(QList, Obj) | - qobject_to_qbool(Obj) + qobject_to(QBool, Obj) ) and a bit of manual fix-up for overly long lines and three places in tests/check-qjson.c that Coccinelle did not find. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-Id: <20180224154033.29559-4-mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: swap order from qobject_to(o, X), rebase to master, also a fix to latent false-positive compiler complaint about hw/i386/acpi-build.c] Signed-off-by: Eric Blake <eblake@redhat.com>
* Include less of the generated modular QAPI headersMarkus Armbruster2018-03-021-2/+2
| | | | | | | | | | | | | | | | | | | | | In my "build everything" tree, a change to the types in qapi-schema.json triggers a recompile of about 4800 out of 5100 objects. The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h, qapi-types.h. Each of these headers still includes all its shards. Reduce compile time by including just the shards we actually need. To illustrate the benefits: adding a type to qapi/migration.json now recompiles some 2300 instead of 4800 objects. The next commit will improve it further. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-24-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> [eblake: rebase to master] Signed-off-by: Eric Blake <eblake@redhat.com>
* Include qapi/qmp/qdict.h exactly where neededMarkus Armbruster2018-02-091-0/+1
| | | | | | | | | | | | | This cleanup makes the number of objects depending on qapi/qmp/qdict.h drop from 4550 (out of 4743) to 368 in my "build everything" tree. For qapi/qmp/qobject.h, the number drops from 4552 to 390. While there, separate #include from file comment with a blank line. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-13-armbru@redhat.com>
* Include qapi/qmp/qlist.h exactly where neededMarkus Armbruster2018-02-091-0/+1
| | | | | | | | | | | | This cleanup makes the number of objects depending on qapi/qmp/qlist.h drop from 4551 (out of 4743) to 16 in my "build everything" tree. While there, separate #include from file comment with a blank line. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-12-armbru@redhat.com>
* qdict qlist: Make most helper macros functionsMarkus Armbruster2018-02-091-0/+1
| | | | | | | | | | | | | | | | | | | The macro expansions of qdict_put_TYPE() and qlist_append_TYPE() need qbool.h, qnull.h, qnum.h and qstring.h to compile. We include qnull.h and qnum.h in the headers, but not qbool.h and qstring.h. Works, because we include those wherever the macros get used. Open-coding these helpers is of dubious value. Turn them into functions and drop the includes from the headers. This cleanup makes the number of objects depending on qapi/qmp/qnum.h from 4551 (out of 4743) to 46 in my "build everything" tree. For qapi/qmp/qnull.h, the number drops from 4552 to 21. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-10-armbru@redhat.com>
* Eliminate qapi/qmp/types.hMarkus Armbruster2018-02-091-1/+2
| | | | | | | | | | | | | | qapi/qmp/types.h is a convenience header to include a number of qapi/qmp/ headers. Since we rarely need all of the headers qapi/qmp/types.h includes, we bypass it most of the time. Most of the places that use it don't need all the headers, either. Include the necessary headers directly, and drop qapi/qmp/types.h. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-9-armbru@redhat.com>
* Include qapi/error.h exactly where neededMarkus Armbruster2018-02-091-0/+1
| | | | | | | | | | | | | | This cleanup makes the number of objects depending on qapi/error.h drop from 1910 (out of 4743) to 1612 in my "build everything" tree. While there, separate #include from file comment with a blank line, and drop a useless comment on why qemu/osdep.h is included first. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-5-armbru@redhat.com> [Semantic conflict with commit 34e304e975 resolved, OSX breakage fixed]
* block: Guard against NULL bs->drvMax Reitz2017-11-171-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently do not guard everywhere against a NULL bs->drv where we should be doing so. Most of the places fixed here just do not care about that case at all. Some care implicitly, e.g. through a prior function call to bdrv_getlength() which would always fail for an ejected BDS. Add an assert there to make it more obvious. Other places seem to care, but do so insufficiently: Freeing clusters in a qcow2 image is an error-free operation, but it may leave the image in an unusable state anyway. Giving qcow2_free_clusters() an error code is not really viable, it is much easier to note that bs->drv may be NULL even after a successful driver call. This concerns bdrv_co_flush(), and the way the check is added to bdrv_co_pdiscard() (in every iteration instead of only once). Finally, some places employ at least an assert(bs->drv); somewhere, that may be reasonable (such as in the reopen code), but in bdrv_has_zero_init(), it is definitely not. Returning 0 there in case of an ejected BDS saves us much headache instead. Reported-by: R. Nageswara Sastry <nasastry@in.ibm.com> Buglink: https://bugs.launchpad.net/qemu/+bug/1728660 Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20171110203111.7666-4-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
* block: move ThrottleGroup membership to ThrottleGroupMemberManos Pitsidianakis2017-09-051-3/+5
| | | | | | | | | | | | | | | This commit eliminates the 1:1 relationship between BlockBackend and throttle group state. Users will be able to create multiple throttle nodes, each with its own throttle group state, in the future. The throttle group state cannot be per-BlockBackend anymore, it must be per-throttle node. This is done by gathering ThrottleGroup membership details from BlockBackendPublic into ThrottleGroupMember and refactoring existing code to use the structure. Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Manos Pitsidianakis <el13635@mail.ntua.gr> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* block/qapi: Remove redundant NULL check to silence CoverityKevin Wolf2017-08-011-1/+2
| | | | | | | | | | | | | | When skipping implicit nodes in bdrv_block_device_info(), we know that bs0 is always non-NULL; initially, because it's taken from a BdrvChild and a BdrvChild never has a NULL bs, and after the first iteration because implicit nodes always have a backing file. Remove the NULL check and add an assertion that the implicit node does indeed have a backing file. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com>
* block: Skip implicit nodes in query-block/blockstatsKevin Wolf2017-07-241-6/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commits 0db832f and 6cdbceb introduced the automatic insertion of filter nodes above the top layer of mirror and commit block jobs. The assumption made there was that since libvirt doesn't do node-level management of the block layer yet, it shouldn't be affected by added nodes. This is true as far as commands issued by libvirt are concerned. It only uses BlockBackend names to address nodes, so any operations it performs still operate on the root of the tree as intended. However, the assumption breaks down when you consider query commands, which return data for the wrong node now. These commands also return information on some child nodes (bs->file and/or bs->backing), which libvirt does make use of, and which refer to the wrong nodes, too. One of the consequences is that oVirt gets wrong information about the image size and stops the VM in response as long as a mirror or commit job is running: https://bugzilla.redhat.com/show_bug.cgi?id=1470634 This patch fixes the problem by hiding the implicit nodes created automatically by the mirror and commit block jobs in the output of query-block and BlockBackend-based query-blockstats as long as the user doesn't indicate that they are aware of those nodes by providing a node name for them in the QMP command to start the block job. The node-based commands query-named-block-nodes and query-blockstats with query-nodes=true still show all nodes, including implicit ones. This ensures that users that are capable of node-level management can still access the full information; users that only know BlockBackends won't use these commands. Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Tested-by: Eric Blake <eblake@redhat.com>
* block: List anonymous device BBs in query-blockKevin Wolf2017-07-181-1/+1
| | | | | | | | | | | | | Instead of listing only monitor-owned BlockBackends in query-block, also add those anonymous BlockBackends that are owned by a qdev device and as such under the control of the user. This allows using query-block to inspect BlockBackends for the modern configuration syntax with -blockdev and -device. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com>
* block/qapi: Use blk_all_next() for query-blockKevin Wolf2017-07-181-2/+8
| | | | | | | | | | | This patch replaces the blk_next() loop in query-block by a blk_all_next() one so that we also get access to BlockBackends that aren't owned by the monitor. For now, the next thing we do is check whether each BB has a name, so there is no semantic difference. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com>
* block/qapi: Add qdev device name to query-blockKevin Wolf2017-07-181-0/+10
| | | | | | | | | | | With -blockdev/-device, users can indirectly create anonymous BlockBackends, while the state of such backends is still of interest. As a preparation for making such BBs visible in query-block, make sure that they can be identified even without a name by adding the ID/QOM path of their qdev device to BlockInfo. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com>
* block: remove all encryption handling APIsDaniel P. Berrange2017-07-111-1/+1
| | | | | | | | | | | | | | | | Now that all encryption keys must be provided upfront via the QCryptoSecret API and associated block driver properties there is no need for any explicit encryption handling APIs in the block layer. Encryption can be handled transparently within the block driver. We only retain an API for querying whether an image is encrypted or not, since that is a potentially useful piece of metadata to report to the user. Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170623162419.26068-18-berrange@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
* Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2017-06-09-v2' ↵Peter Maydell2017-06-221-8/+5Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into staging QAPI patches for 2017-06-09 # gpg: Signature made Tue 20 Jun 2017 13:31:39 BST # gpg: using RSA key 0x3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-qapi-2017-06-09-v2: (41 commits) tests/qdict: check more get_try_int() cases console: use get_uint() for "head" property i386/cpu: use get_uint() for "min-level"/"min-xlevel" properties numa: use get_uint() for "size" property pnv-core: use get_uint() for "core-pir" property pvpanic: use get_uint() for "ioport" property auxbus: use get_uint() for "addr" property arm: use get_uint() for "mp-affinity" property xen: use get_uint() for "max-ram-below-4g" property pc: use get_uint() for "hpet-intcap" property pc: use get_uint() for "apic-id" property pc: use get_uint() for "iobase" property acpi: use get_uint() for "pci-hole*" properties acpi: use get_uint() for various acpi properties acpi: use get_uint() for "acpi-pcihp-io*" properties platform-bus: use get_uint() for "addr" property bcm2835_fb: use {get, set}_uint() for "vcram-size" and "vcram-base" aspeed: use {set, get}_uint() for "ram-size" property pcihp: use get_uint() for "bsel" property pc-dimm: make "size" property uint64 ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * qapi: merge QInt and QFloat in QNumMarc-André Lureau2017-06-201-8/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We would like to use a same QObject type to represent numbers, whether they are int, uint, or floats. Getters will allow some compatibility between the various types if the number fits other representations. Add a few more tests while at it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170607163635.17635-7-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [parse_stats_intervals() simplified a bit, comment in test_visitor_in_int_overflow() tidied up, suppress bogus warnings] Signed-off-by: Markus Armbruster <armbru@redhat.com>
* | block: use Stat64 for wr_highest_offsetPaolo Bonzini2017-06-161-1/+1
|/ | | | | | | Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20170605123908.18777-12-pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
* block: Don't bother asserting type of output visitor's outputMarkus Armbruster2017-02-221-1/+0Star
| | | | | | | | | | | | | | | | | After a visit of a complex QAPI type FOO ov = qobject_output_visitor_new(&foo); visit_type_FOO(ov, NULL, expr, &error_abort); visit_complete(ov, &foo); we can safely assume qobject_type(foo) is QTYPE_QDICT. We do in many places, but occasionally assert qobject_type(obj) == QTYPE_QDICT. Don't. The appropriate place to check such fundamental properties of QAPI visitors is the test suite. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1487363905-9480-15-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* block/qapi: reduce the execution time of qmp_query_blockstatsDou Liyang2017-02-121-44/+29Star
| | | | | | | | | | | | | | | | | | | | | | | | | In order to reduce the execution time, this patch optimize the qmp_query_blockstats(): Remove the next_query_bds function. Remove the bdrv_query_stats function. Remove some judgement sentence. The original qmp_query_blockstats calls next_query_bds to get the next objects in each loops. In the next_query_bds, it checks the query_nodes and blk. It also call bdrv_query_stats to get the stats, In the bdrv_query_stats, it checks blk and bs each times. This waste more times, which may stall the main loop a bit. And if the disk is too many and donot use the dataplane feature, this may affect the performance in main loop thread. This patch removes that two functions, and makes the structure clearly. Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com> Message-id: 1484467275-27919-3-git-send-email-douly.fnst@cn.fujitsu.com Reviewed-by: Markus Armbruster <armbru@redhat.com> [mreitz: Removed duplicate info->value assignment] Signed-off-by: Max Reitz <mreitz@redhat.com>
* block/qapi: reduce the coupling between the bdrv_query_stats and ↵Dou Liyang2017-02-121-12/+14
| | | | | | | | | | | | | | | | | | | bdrv_query_bds_stats The bdrv_query_stats and bdrv_query_bds_stats functions need to call each other, that increases the coupling. it also makes the program complicated and makes some unnecessary tests. Remove the call from bdrv_query_bds_stats to bdrv_query_stats, just take some recursion to make it clearly. Avoid testing whether the blk is NULL during querying the bds stats. It is unnecessary. Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com> Message-id: 1484467275-27919-2-git-send-email-douly.fnst@cn.fujitsu.com Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
* qapi: Tweak error message of bdrv_query_image_infoFam Zheng2017-02-121-2/+2
| | | | | | | | | | @bs doesn't always have a device name, such as when it comes from "qemu-img info". Report file name instead. Signed-off-by: Fam Zheng <famz@redhat.com> Message-id: 20170119130759.28319-2-famz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
* qapi: rename QmpOutputVisitor to QObjectOutputVisitorDaniel P. Berrange2016-10-251-1/+1
| | | | | | | | | | | | | | | | | | The QmpOutputVisitor has no direct dependency on QMP. It is valid to use it anywhere that one wants a QObject. Rename it to better reflect its functionality as a generic QAPI to QObject converter. The commit before previous renamed the files, this one renames C identifiers. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1475246744-29302-6-git-send-email-berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Split into file rename and identifier rename] Signed-off-by: Markus Armbruster <armbru@redhat.com>
* qapi: rename *qmp-*-visitor* to *qobject-*-visitor*Daniel P. Berrange2016-10-251-1/+1
| | | | | | | | | | | | | | | | | | The QMP visitors have no direct dependency on QMP. It is valid to use them anywhere that one has a QObject. Rename them to better reflect their functionality as a generic QObject to QAPI converter. This is the first of three parts: rename the files. The next two parts will rename C identifiers. The split is necessary to make git rename detection work. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Split into file and identifier rename, two comments touched up] Signed-off-by: Markus Armbruster <armbru@redhat.com>
* qapi: fix memory leak in bdrv_image_info_specific_dumpPino Toscano2016-10-241-0/+1
| | | | | | | | | The 'obj' result of the visitor was not properly freed, like done in other places doing a similar job. Signed-off-by: Pino Toscano <ptoscano@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qapi: Add new visit_complete() functionEric Blake2016-07-061-5/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Making each output visitor provide its own output collection function was the only remaining reason for exposing visitor sub-types to the rest of the code base. Add a polymorphic visit_complete() function which is a no-op for input visitors, and which populates an opaque pointer for output visitors. For maximum type-safety, also add a parameter to the output visitor constructors with a type-correct version of the output pointer, and assert that the two uses match. This approach was considered superior to either passing the output parameter only during construction (action at a distance during visit_free() feels awkward) or only during visit_complete() (defeating type safety makes it easier to use incorrectly). Most callers were function-local, and therefore a mechanical conversion; the testsuite was a bit trickier, but the previous cleanup patch minimized the churn here. The visit_complete() function may be called at most once; doing so lets us use transfer semantics rather than duplication or ref-count semantics to get the just-built output back to the caller, even though it means our behavior is not idempotent. Generated code is simplified as follows for events: |@@ -26,7 +26,7 @@ void qapi_event_send_acpi_device_ost(ACP | QDict *qmp; | Error *err = NULL; | QMPEventFuncEmit emit; |- QmpOutputVisitor *qov; |+ QObject *obj; | Visitor *v; | q_obj_ACPI_DEVICE_OST_arg param = { | info |@@ -39,8 +39,7 @@ void qapi_event_send_acpi_device_ost(ACP | | qmp = qmp_event_build_dict("ACPI_DEVICE_OST"); | |- qov = qmp_output_visitor_new(); |- v = qmp_output_get_visitor(qov); |+ v = qmp_output_visitor_new(&obj); | | visit_start_struct(v, "ACPI_DEVICE_OST", NULL, 0, &err); | if (err) { |@@ -55,7 +54,8 @@ void qapi_event_send_acpi_device_ost(ACP | goto out; | } | |- qdict_put_obj(qmp, "data", qmp_output_get_qobject(qov)); |+ visit_complete(v, &obj); |+ qdict_put_obj(qmp, "data", obj); | emit(QAPI_EVENT_ACPI_DEVICE_OST, qmp, &err); and for commands: | { | Error *err = NULL; |- QmpOutputVisitor *qov = qmp_output_visitor_new(); | Visitor *v; | |- v = qmp_output_get_visitor(qov); |+ v = qmp_output_visitor_new(ret_out); | visit_type_AddfdInfo(v, "unused", &ret_in, &err); |- if (err) { |- goto out; |+ if (!err) { |+ visit_complete(v, ret_out); | } |- *ret_out = qmp_output_get_qobject(qov); |- |-out: | error_propagate(errp, err); Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1465490926-28625-13-git-send-email-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
* qmp-output-visitor: Favor new visit_free() functionEric Blake2016-07-061-1/+1
| | | | | | | | | | | Now that we have a polymorphic visit_free(), we no longer need qmp_output_visitor_cleanup(); however, we still need to expose the subtype for qmp_output_get_qobject(). Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1465490926-28625-10-git-send-email-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
* block: Don't return throttling info in query-named-block-nodesKevin Wolf2016-05-191-3/+3
| | | | | | | | | query-named-block-nodes should not return information that is related to the attached BlockBackend rather than the node itself, so throttling information needs to be removed from it. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
* block: Move I/O throttling configuration functions to BlockBackendKevin Wolf2016-05-191-1/+1
| | | | | | Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
* block: Move throttling fields from BDS to BBKevin Wolf2016-05-191-1/+1
| | | | | | | | | | This patch changes where the throttling state is stored (used to be the BlockDriverState, now it is the BlockBackend), but it doesn't actually make it a BB level feature yet. For example, throttling is still disabled when the BDS is detached from the BB. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
* block: Convert throttle_group_get_name() to BlockBackendKevin Wolf2016-05-191-1/+1
| | | | | | Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
* block/qapi: Use blk_enable_write_cache()Kevin Wolf2016-03-301-3/+4
| | | | | | | | | | | | | | | | | | Now that WCE is handled on the BlockBackend level, the flag is meaningless for BDSes. As the schema requires us to fill the field, we return an enabled write cache for them. Note that this means that querying the BlockBackend name may return writethrough as the cache information, whereas querying the node-name of the root of that same BlockBackend will return writeback. This may appear odd at first, but it actually makes sense because it correctly repesents the layer that implements the WCE handling. This becomes more apparent when you consider nodes that are the root node of multiple BlockBackends, where each BB can have its own WCE setting. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
* block/qapi: Pass bdrv_query_blk_stats() s->statsMax Reitz2016-03-301-25/+25
| | | | | | | | | bdrv_query_blk_stats() does not need access to all of BlockStats, BlockDeviceStats is enough and is what this function is actually supposed to fill. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* block/qapi: Set s->device in bdrv_query_stats()Max Reitz2016-03-301-3/+2Star
| | | | | | | | | | | This is the only instance of bdrv_query_blk_stats() accessing anything in the BlockStats structure other than s->stats, so let us move it to its caller (where it makes just as much sense) allowing us to make bdrv_query_blk_stats() take a pointer to the BlockDeviceStats instead of BlockStats. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* block/qapi: fix unbounded stack for dump_qdictPeter Xu2016-03-301-1/+2
| | | | | | | | | Using heap instead of stack for better safety. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* block/qapi: make two printf() formats literalPeter Xu2016-03-301-6/+4Star
| | | | | | | | | Fix two places to use literal printf format when possible. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* util: move declarations out of qemu-common.hVeronia Bahaa2016-03-221-0/+1
| | | | | | | | | | Move declarations out of qemu-common.h for functions declared in utils/ files: e.g. include/qemu/path.h for utils/path.c. Move inline functions out of qemu-common.h and into new files (e.g. include/qemu/bcd.h) Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* block/qapi: Include empty drives in query-blockstatsKevin Wolf2016-03-141-15/+33
| | | | | | | | | | | | Since commit 5ec18f8c, query-blockstats didn't return the statistics of drives without media any more because such drives have only a BB now, but not a BDS any more. This patch fixes the regression so that query-blockstats iterates over BBs by default and empty drives are displayed again. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-12-12 05:58:29 +0100