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2014-01-24Merge remote-tracking branch 'bonzini/scsi-next' into stagingAnthony Liguori1-0/+8
* bonzini/scsi-next: scsi: Support TEST UNIT READY in the dummy LUN0 block: add .bdrv_reopen_prepare() stub for iscsi virtio-scsi: Prevent assertion on missed events virtio-scsi: Cleanup of I/Os that never started scsi: Assign cancel_io vector for scsi_disk_emulate_ops Conflicts: block/iscsi.c aliguori: resolve trivial merge conflict in block/iscsi.c Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2014-01-24qemu-iotests: Test pwritev RMW logicKevin Wolf1-0/+8
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-01-24blkdebug: Make required alignment configurableKevin Wolf1-0/+16
The new 'align' option of blkdebug can be used in order to emulate backends with a required 4k alignment on hosts which only really require 512 byte alignment. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24iscsi: Set bs->request_alignmentPaolo Bonzini1-0/+1
The iSCSI backend already gets the block size from the READ CAPACITY command it sends. Save it so that the generic block layer gets it too. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-01-24block: Switch BdrvTrackedRequest to byte granularityKevin Wolf1-1/+6
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net>
2014-01-24raw: Probe required direct I/O alignmentPaolo Bonzini2-17/+126
Add a bs->request_alignment field that contains the required offset/length alignment for I/O requests and fill it in the raw block drivers. Use ioctls if possible, else see what alignment it takes for O_DIRECT to succeed. While at it, also expose the memory alignment requirements, which may be (and in practice are) different from the disk alignment requirements. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2014-01-24block: Update BlockLimits when they might have changedKevin Wolf1-0/+2
When reopening with different flags, or when backing files disappear from the chain, the limits may change. Make sure they get updated in these cases. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Benoît Canet <benoit@irqsave.net>
2014-01-24block: Move initialisation of BlockLimits to bdrv_refresh_limits()Kevin Wolf4-23/+67
This function separates filling the BlockLimits from bdrv_open(), which allows it to call it from other operations which may change the limits (e.g. modifications to the backing file chain or bdrv_reopen) Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net>
2014-01-24block: resize backing image during active layer commit, if neededJeff Cody1-0/+38
If the top image to commit is the active layer, and also larger than the base image, then an I/O error will likely be returned during block-commit. For instance, if we have a base image with a virtual size 10G, and a active layer image of size 20G, then committing the snapshot via 'block-commit' will likely fail. This will automatically attempt to resize the base image, if the active layer image to be committed is larger. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24block/curl: Implement the libcurl timer callback interfacePeter Maydell1-11/+70
libcurl versions 7.16.0 and later have a timer callback interface which must be implemented in order for libcurl to make forward progress (it will sometimes rely on being called back on the timeout if there are no file descriptors registered). Implement the callback, and use a QEMU AIO timer to ensure we prod libcurl again when it asks us to. Based on Peter's original patch plus my fix to add curl_multi_timeout_do. Should compile just fine even on older versions of libcurl. I also tried copy-on-read and streaming: $ ./qemu-img create -f qcow2 -o \ backing_file=http://download.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso \ foo.qcow2 1G $ x86_64-softmmu/qemu-system-x86_64 \ -drive if=none,file=foo.qcow2,copy-on-read=on,id=cd \ -device ide-cd,drive=cd --enable-kvm -m 1024 Direct http usage is probably too slow, but with copy-on-read ultimately the image does boot! After some time, streaming gets canceled by an EIO, which needs further investigation. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24block: Create authorizations mechanism for external snapshot and resize.Benoît Canet1-1/+1
Signed-off-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24qmp: Add QMP query-named-block-nodes to list the named BlockDriverState nodes.Benoît Canet1-54/+55
Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24qapi: Add "backing" to BlockStatsFam Zheng1-0/+5
Currently there is no way to query BlockStats of the backing chain. This adds "backing" field into BlockStats to make it possible. The comment of "parent" is reworded. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24vmdk: Fix format specific information (create type) for streamOptimizedFam Zheng1-0/+4
Previously the field is wrong: $ ./qemu-img create -f vmdk -o subformat=streamOptimized /tmp/a.vmdk 1G $ ./qemu-img info /tmp/a.vmdk image: /tmp/a.vmdk file format: vmdk virtual size: 1.0G (1073741824 bytes) disk size: 12K Format specific information: cid: 1390460459 parent cid: 4294967295 >>> create type: monolithicSparse <snip> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24drive mirror:fix memory leakZhang Min1-0/+1
In the function mirror_iteration() -> qemu_iovec_init(), it allocates memory for op->qiov.iov, when the write request calls back, but in the function mirror_iteration_done(), it only frees the op, not free the op->qiov.iov, so this causes memory leak. It should use qemu_iovec_destroy() to free op->qiov. Signed-off-by: Zhang Min <rudy.zhangmin@huawei.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24sheepdog: fix 'qemu-img map'Liu Yuan1-2/+3
It was muted in the previous commit 4bc74be9. Let's revive it since nothing prevents us to do it. With this patch, following command will work as other formats: $ qemu-img map sheepdog:image Cc: qemu-devel@nongnu.org Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24vmdk: Check for overhead when openingFam Zheng1-0/+7
Report an error if file size is even smaller than metadata. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-24qcow2: fix wrong value of L1E_OFFSET_MASK, L2E_OFFSET_MASK and REFT_OFFSET_MASKHu Tao1-3/+3
Accoring to qcow spec, the offset fields in l1e, l2e and ref table entry start at bit 9. The offset is cluster offset, and the smallest possible cluster size is 512 bytes. Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22blkverify: Don't require protocol filenameMax Reitz1-1/+3
If the filename is not prefixed by "blkverify:" in blkverify_parse_filename(), the blkverify driver was not selected through that protocol prefix, but by an explicit command line (or QMP) option (like driver=blkverify). If blkverify_parse_filename() has been called, a filename has been given. If it is not prefixed, it is probably really just a plain filename. This is no problem, since we can use it as the test image filename and rely on the user to specify the raw image filename through the new corresponding option. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22blkverify: Allow command-line configurationMax Reitz1-20/+5
Introduce the "test" and "raw" options for specifying images. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22blkdebug: Allow command-line file configurationMax Reitz1-9/+3
Introduce the "image" option as an alternative to specifying the image through the filename. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22block: Allow reference for bdrv_file_open()Max Reitz9-14/+16
Allow specifying a reference to an existing block device (by name) for bdrv_file_open() instead of a filename and/or options. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22blkdebug: Use command-line in read_config()Max Reitz1-3/+12
Use qemu_config_parse_qdict() to parse the command-line options in addition to the config file. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22blkdebug: Always call read_config()Max Reitz1-17/+19
Move the check whether there actually is a config file into the read_config() function. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22blkdebug: Don't require sophisticated filenameMax Reitz1-1/+3
If the filename is not prefixed by "blkdebug:" in blkdebug_parse_filename(), the blkdebug driver was not selected through that protocol prefix, but by an explicit command line option (file.driver=blkdebug or something similar). Contrary to the current reaction, this is not a problem at all; we just need to store the filename (in the x-image option) and can go on; the user just has to manually specify the config option. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22blkdebug: Use errp for read_config()Max Reitz1-4/+6
Use an Error variable in the read_config() function. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22vmdk: Fix big flat extent IOFam Zheng1-2/+2
Local variable "n" as int64_t avoids overflow with large sector number calculation. See test case change for failure case. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22sheepdog: fix clone operation by 'qemu-img create -b'Liu Yuan1-8/+8
We should pass base_inode->vdi_id to base_vdi_id of SheepdogVdiReq so that sheep can create a clone instead a fresh volume. This fixes following command: qemu-create -b sheepdog:base sheepdog:clone so users can boot sheepdog:clone as a normal volume. Cc: qemu-devel@nongnu.org Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22gluster: Add support for creating zero-filled imageBharata B Rao1-1/+49
GlusterFS supports creation of zero-filled file on GlusterFS volume by means of an API called glfs_zerofill(). Use this API from QEMU to create an image that is filled with zeroes by using the preallocation option of qemu-img. qemu-img create gluster://server/volume/image -o preallocation=full 10G The allowed values for preallocation are 'full' and 'off'. By default preallocation is off and image is not zero-filled. glfs_zerofill() offloads the writing of zeroes to the server and if the storage supports SCSI WRITESAME, GlusterFS server can issue BLKZEROOUT ioctl to achieve the zeroing. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22gluster: Implement .bdrv_co_write_zeroes for glusterBharata B Rao1-19/+60
Support .bdrv_co_write_zeroes() from gluster driver by using GlusterFS API glfs_zerofill() that off-loads the writing of zeroes to GlusterFS server. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22gluster: Convert aio routines into coroutinesBharata B Rao1-147/+74
Convert the read, write, flush and discard implementations from aio-based ones to coroutine based ones. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22block/iscsi: return -ENOMEM if an async call fails immediatelyPeter Lieven1-6/+6
if an async libiscsi call fails directly it can only be due to an out of memory condition. All other errors are returned through the callback. Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-22rbd: switch from pipe to QEMUBH completion notificationStefan Hajnoczi1-108/+22
rbd callbacks are called from non-QEMU threads. Up until now a pipe was used to signal completion back to the QEMU iothread. The pipe writer code handles EAGAIN using select(2). The select(2) API is not scalable since fd_set size is static. FD_SET() can write beyond the end of fd_set if the file descriptor number is too high. (QEMU's main loop uses poll(2) to avoid this issue with select(2).) Since the pipe itself is quite clumsy to use and QEMUBH is now thread-safe, just schedule a BH from the rbd callback function. This way we can simplify I/O completion in addition to eliminating the potential FD_SET() crash when file descriptor numbers become too high. Crash scenario: QEMU already has 1024 file descriptors open. Hotplug an rbd drive and get the pipe writer to take the select(2) code path. Reviewed-by: Josh Durgin <josh.durgin@inktank.com> Tested-by: Josh Durgin <josh.durgin@inktank.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-01-15block: add .bdrv_reopen_prepare() stub for iscsiJeff Cody1-0/+9
To suppport reopen(), the .bdrv_reopen_prepare() stub must exist. iSCSI does not have anything that needs to be done to support reopen, so we can just implement the _prepare() stub. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-01-14Merge remote branch 'luiz/queue/qmp' into qmpqEdgar E. Iglesias12-13/+15
* luiz/queue/qmp: migration: qmp_migrate(): keep working after syntax error qerror: Remove assert_no_error() qemu-option: Remove qemu_opts_create_nofail target-i386: Remove assert_no_error usage hw: Remove assert_no_error usages qdev: Delete dead code error: Add error_abort monitor: add object-add (QMP) and object_add (HMP) command monitor: add object-del (QMP) and object_del (HMP) command qom: catch errors in object_property_add_child qom: fix leak for objects created with -object rng: initialize file descriptor to -1 qemu-monitor: HMP cpu-add wrapper vl: add missing transition debug->finish_migrate Message-Id: 1389045795-18706-1-git-send-email-lcapitulino@redhat.com Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-01-10Merge remote-tracking branch 'bonzini/scsi-next' into stagingAnthony Liguori1-1/+10
* bonzini/scsi-next: scsi-disk: add UNMAP limits to block limits VPD page block/iscsi: use a bh to schedule co reentrance Message-id: 1387720926-11421-1-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2014-01-06qemu-option: Remove qemu_opts_create_nofailPeter Crosthwaite12-13/+15
This is a boiler-plate _nofail variant of qemu_opts_create. Remove and use error_abort in call sites. null/0 arguments needs to be added for the id and fail_if_exists fields in affected callsites due to argument inconsistency between the normal and no_fail variants. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-12-20commit: Remove unused checkFam Zheng1-7/+1
We support top == active for commit now, remove the check and add an assertion here. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20commit: Support commit active layerFam Zheng1-0/+11
If active is top, it will be mirrored to base, (with block/mirror.c code), then the image is switched when user completes the block job. QMP documentation is updated. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20block: Add commit_active_start()Fam Zheng1-16/+50
commit_active_start is implemented in block/mirror.c, It will create a job with "commit" type and designated base in block-commit command. This will be used for committing active layer of device. Sync mode is removed from MirrorBlockJob because there's no proper type for commit. The used information is is_none_mode. The common part of mirror_start and commit_active_start is moved to mirror_start_job(). Fix the comment wording for commit_start. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20mirror: Move base to MirrorBlockJobFam Zheng1-2/+10
This allows setting the base before entering mirror_run, commit will make use of it. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20mirror: Don't close targetFam Zheng1-1/+0
Let reference count manage target and don't call bdrv_close here. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20vmdk: Allow vmdk_create to work with protocolFam Zheng1-69/+95
This improves vmdk_create to use bdrv_* functions to replace qemu_open and other fd functions. The error handling are improved as well. One difference is that bdrv_pwrite will round up buffer to sectors, so for description file, an extra bdrv_truncate is used in the end to drop inding zeros. Notes: - A bonus bug fix is correct endian is used in initializing GD entries. - ROUND_UP and DIV_ROUND_UP are used where possible. I tested that new code produces exactly the same file as previously. Signed-off-by: Fam Zheng <famz@redhat.com> Tested-by: Peter Lieven <pl@kamp.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20vmdk: Check VMFS extent line field numberFam Zheng1-2/+7
VMFS extent line in description file should be with 4 fields: RW <size> VMFS "file-name.vmdk" Check the number explicitly and report error if offset is appended as FLAT, which should be invalid format. Reported-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20block: vhdx - improve error message, and .bdrv_check implementationJeff Cody3-4/+36
If there is a dirty log file to be replayed in a VHDX image, it is replayed in .vhdx_open(). However, if the file is opened read-only, then a somewhat cryptic error message results. This adds a more helpful error message for the user. If an image file contains a log to be replayed, and is opened read-only, the user is instructed to run 'qemu-img check -r all' on the image file. Running qemu-img check -r all will cause the image file to be opened r/w, which will replay the log file. If a log file replay is detected, this is flagged, and bdrv_check will increase the corruptions_fixed count for the image. [Fixed typo in error message that was pointed out by Eric Blake <eblake@redhat.com>. --Stefan] Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20block/iscsi: Fix compilation for libiscsi 1.4.0 (API change)Stefan Weil1-1/+4
Function iscsi_read10_task got additional parameters starting with version libiscsi 1.5.0. libiscsi 1.4.0 is still widely used (Debian wheezy, jessie and other Linux distributions currently provide packages for QEMU which use it), so we still need support for this older API. Reviewed-by: Peter Lieven <pl@kamp.de> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-20sheepdog: fix dynamic grow for running qcow2 formatLiu Yuan1-3/+4
When running qcow2 over sheepdog, we might meet following problem qemu-system-x86_64: shrinking is not supported And cause IO errors to Guest. This is because we abuse bs->total_sectors, which is manipulated by generic block layer and race with sheepdog code. We should directly check if offset > vdi_size to dynamically enlarge the volume instead of 'offset > bs->total_sectors', which will cause problem when following case happens: vdi_size > offset > bs->total_sectors # then trigger sd_truncate() to shrink the volume wrongly. Cc: qemu-devel@nongnu.org Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Reported-by: Hadrien KOHL <hadrien.kohl@gmail.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-12-16Merge remote-tracking branch 'spice/tags/pull-spice-1' into stagingAnthony Liguori4-348/+469
Collection of little cleanups anf bugfixes. nbd patches in preparation of spice-nbd. # gpg: Signature made Mon 16 Dec 2013 01:27:45 AM PST using RSA key ID D3E87138 # gpg: Can't check signature: public key not found # By Marc-André Lureau (12) and Gerd Hoffmann (4) # Via Gerd Hoffmann * spice/tags/pull-spice-1: spice: stop server for qxl hard reset spice: move spice_server_vm_{start,stop} calls into qemu_spice_display_*() spice: move qemu_spice_display_*() from spice-graphics to spice-core nbd: avoid uninitialized warnings nbd: finish any pending coroutine nbd: make nbd_client_session_close() idempotent nbd: pass export name as init argument nbd: don't change socket block during negotiate Split nbd block client code spice-char: implement chardev port event char: add qemu_chr_fe_event() include: add missing config-host.h include qmp_change_blockdev() remove unused has_format spice-char: remove unused field vscclient: do not add a socket watch if there is not data to send spice: flip streaming video mode to off by default
2013-12-16Merge remote-tracking branch 'kwolf/tags/for-anthony' into stagingAnthony Liguori3-28/+31
Block patches # gpg: Signature made Fri 13 Dec 2013 09:47:03 AM PST using RSA key ID C88F2FD6 # gpg: Can't check signature: public key not found # By Peter Lieven (2) and others # Via Kevin Wolf * kwolf/tags/for-anthony: blkdebug: Use QLIST_FOREACH_SAFE to resume IO qemu-img: make progress output more accurate during convert block: expect get_block_status errors in bdrv_make_zero block/vvfat: Fix compiler warnings for OpenBSD qapi-schema.json: Change 1.8 reference to 2.0 sheepdog: check if '-o redundancy' is passed from user Message-id: 1386956943-19474-1-git-send-email-kwolf@redhat.com Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-16block/iscsi: use a bh to schedule co reentrancePeter Lieven1-1/+10
this fixes a potential segfault and performance regression. If the coroutine is reentered directly in the iscsi_co_generic_cb iscsi_process_{read,write} are interrupted and reentered any time later. One the one hand this could happen after an iscsi_close where the iscsi context is already gone (segfault). On the other hand this limits the number of processed callbacks in each aio_dispatch to one (potential performance regression). Cc: qemu-stable@nongnu.org Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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