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2013-09-25block: introduce BlockDriver.bdrv_needs_filename to enable some drivers.Benoît Canet
Some drivers will have driver specifics options but no filename. This new bool allow the block layer to treat them correctly. The .bdrv_needs_filename is set in drivers not having .bdrv_parse_filename and not having .bdrv_open. The first exception to this rule will be the quorum driver. Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-12block: Error parameter for open functionsMax Reitz
Add an Error ** parameter to bdrv_open, bdrv_file_open and associated functions to allow more specific error messages. Signed-off-by: Max Reitz <mreitz@redhat.com>
2013-09-12bdrv: Use "Error" for creating imagesMax Reitz
Add an Error ** parameter to BlockDriver.bdrv_create to allow more specific error messages. Signed-off-by: Max Reitz <mreitz@redhat.com>
2013-09-12bdrv: Use "Error" for opening imagesMax Reitz
Add an Error ** parameter to BlockDriver.bdrv_open and BlockDriver.bdrv_file_open to allow more specific error messages. Signed-off-by: Max Reitz <mreitz@redhat.com>
2013-09-12snapshot: distinguish id and name in snapshot deleteWenchao Xia
Snapshot creation actually already distinguish id and name since it take a structured parameter *sn, but delete can't. Later an accurate delete is needed in qmp_transaction abort and blockdev-snapshot-delete-sync, so change its prototype. Also *errp is added to tip error, but return value is kepted to let caller check what kind of error happens. Existing caller for it are savevm, delvm and qemu-img, they are not impacted by introducing a new function bdrv_snapshot_delete_by_id_or_name(), which check the return value and do the operation again. Before this patch: For qcow2, it search id first then name to find the one to delete. For rbd, it search name. For sheepdog, it does nothing. After this patch: For qcow2, logic is the same by call it twice in caller. For rbd, it always fails in delete with id, but still search for name in second try, no change to user. Some code for *errp is based on Pavel's patch. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-06block: return get_block_status data and flags for formatsPaolo Bonzini
Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06block: introduce bdrv_get_block_status APIPaolo Bonzini
For now, bdrv_get_block_status is just another name for bdrv_is_allocated. The next patches will add more flags. This also touches all block drivers with a mostly mechanical rename. The sole exception is cow; because it calls cow_co_is_allocated from the read code, we keep that function and make cow_co_get_block_status a wrapper. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06block: make bdrv_delete() staticFam Zheng
Manage BlockDriverState lifecycle with refcnt, so bdrv_delete() is no longer public and should be called by bdrv_unref() if refcnt is decreased to 0. This is an identical change because effectively, there's no multiple reference of BDS now: no caller of bdrv_ref() yet, only bdrv_new() sets bs->refcnt to 1, so all bdrv_unref() now actually delete the BDS. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-19aio: drop io_flush argumentStefan Hajnoczi
The .io_flush() handler no longer exists and has no users. Drop the io_flush argument to aio_set_fd_handler() and related functions. The AioFlushEventNotifierHandler and AioFlushHandler typedefs are no longer used and are dropped too. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-19block/sheepdog: drop have_co_req() and aio_flush_request()Stefan Hajnoczi
.io_flush() is no longer called so drop have_co_req() and aio_flush_request(). Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-06sheepdog: add missing .bdrv_has_zero_initLiu Yuan
Commit 3ac21627 changed the behaviour of bdrv_has_zero_init() to default to 0. In the review for Sheepdog it turned out that enabling it is safe, so that commit updated one BlockDriver definition of sheepdog to use bdrv_has_zero_init_1, missed however that there are more BlockDrivers in the driver. Fix these now. Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-07-29block/sheepdog: Rename 'dprintf' to 'DPRINTF'Peter Maydell
'dprintf' is the name of a POSIX standard function so we should not be stealing it for our debug macro. Rename to 'DPRINTF' (in line with a number of other source files.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Acked-by: Richard Henderson <rth@twiddle.net> Acked-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1375100199-13934-2-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-15block: Don't parse protocol from file.filenameKevin Wolf
One of the major reasons for doing something new for -blockdev and blockdev-add was that the old block layer code parses filenames instead of just taking them literally. So we should really leave it untouched when it's passing using the new interfaces (like -drive file.filename=...). This allows opening relative file names that contain a colon. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-06-28block: change default of .has_zero_init to 0Peter Lieven
.has_zero_init defaults to 1 for all formats and protocols. this is a dangerous default since this means that all new added drivers need to manually overwrite it to 0 if they do not ensure that a device is zero initialized after bdrv_create(). if a driver needs to explicitly set this value to 1 its easier to verify the correctness in the review process. during review of the existing drivers it turned out that ssh and gluster had a wrong default of 1. both protocols support host_devices as backend which are not by default zero initialized. this wrong assumption will lead to possible corruption if qemu-img convert is used to write to such a backend. vpc and vmdk also defaulted to 1 altough they support fixed respectively flat extends. this has to be addresses in separate patches. both formats as well as the mentioned ssh and gluster are turned to the default of 0 with this patch for safety. a similar problem with the wrong default existed for iscsi most likely because the driver developer did oversee the default value of 1. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-17sheepdog: support 'qemu-img snapshot -a'Liu Yuan
Just call sd_create_branch() in the snapshot_goto to rollback the image is good enough. With this patch, 'loadvm' process for sheepdog is modified: Suppose we have a snapshot chain A --> B --> C, we do 'loadvm A' so as to get a new chain, A --> B | V C1 in the old code: 1 reload inode of A (in snapshot_goto) 2 read vmstate via A's vdi_id (loadvm_state) 3 delete C and create C1, reload inode of C1 (sd_create_branch on write) with this patch applied: 1 reload inode of A, delete C and create C1 (in snapshot_goto) 2 read vmstate via C1's parent, that is A's vdi_id (loadvm_state) This will fix the possible bug that QEMU exit between 2 and 3 in the old code Cc: qemu-devel@nongnu.org Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> 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>
2013-06-17sheepdog: fix snapshot tag initializationLiu Yuan
This is an old and obvious bug. We should pass snapshot_id to the tag. Or simple command like 'qemu-img snapshot -a tag sheepdog:image' will fail Cc: qemu-devel@nongnu.org Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-04-26sheepdog: fix loadvm operationLiu Yuan
Currently the 'loadvm' opertaion works as following: 1. switch to the snapshot 2. mark current working VDI as a snapshot 3. rely on sd_create_branch to create a new working VDI based on the snapshot This works not the same as other format as QCOW2. For e.g, qemu > savevm # get a live snapshot snap1 qemu > savevm # snap2 qemu > loadvm 1 # This will steally create snap3 of the working VDI Which will result in following snapshot chain: base <-- snap1 <-- snap2 <-- snap3 ^ | working VDI snap3 was unnecessarily created and might be annoying users. This patch discard the unnecessary 'snap3' creation. and implement rollback(loadvm) operation to the specified snapshot by 1. switch to the snapshot 2. delete working VDI 3. rely on sd_create_branch to create a new working VDI based on the snapshot The snapshot chain for above example will be: base <-- snap1 <-- snap2 ^ | working VDI Cc: qemu-devel@nongnu.org Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-26sheepdog: resend write requests when SD_RES_READONLY is receivedMORITA Kazutaka
When a snapshot is taken from out side of qemu (e.g. qemu-img snapshot), write requests to the current vdi return SD_RES_READONLY. In this case, the sheepdog block driver needs to update the current inode to the latest one and resend the write requests. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-26sheepdog: add helper function to reload inodeMORITA Kazutaka
This adds a helper function to update the current inode state with the specified vdi object. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-26sheepdog: add SD_RES_READONLY result codeMORITA Kazutaka
Sheepdog returns SD_RES_READONLY when qemu sends write requests to the snapshot vdi. This adds the result code and makes sd_strerror() print its error reason. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-26sheepdog: cleanup find_vdi_nameMORITA Kazutaka
This makes 'filename' and 'tag' constant variables, and renames 'for_snapshot' to 'lock' to clear how it works. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-26sheepdog: implement .bdrv_co_is_allocated()Liu Yuan
Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-26sheepdog: use BDRV_SECTOR_SIZELiu Yuan
Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-26sheepdog: add discard/trim support for sheepdogLiu Yuan
The 'TRIM' command from VM that is to release underlying data storage for better thin-provision is already supported by the Sheepdog. This patch adds the TRIM support at QEMU part. For older Sheepdog that doesn't support it, we return 0(success) to upper layer. Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-22block: Remove filename parameter from .bdrv_file_open()Kevin Wolf
It is unused now in all block drivers. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-04-22sheepdog: Use bdrv_open options instead of filenameKevin Wolf
This is only to convert the internal interface that is used for passing the "filename" to be parsed, but converting to actual fine grained options is left for another day, as it doesn't look trivial. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-04-15block: Introduce bdrv_writev_vmstateKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-02oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()Stefan Hajnoczi
The fcntl(fd, F_SETFL, O_NONBLOCK) flag is not specific to sockets. Rename to qemu_set_nonblock() just like qemu_set_cloexec(). Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-03-22block: Add options QDict to bdrv_file_open() prototypesKevin Wolf
The new parameter is unused yet. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-19sheepdog: show error message for halt statusLiu Yuan
Sheepdog (neither quorum nor unsafe mode) will refuse to serve IO requests when number of alive nodes is less than that of copies specified by users. This will return 0x19 to QEMU client which currently doesn't recognize it. This patch adds an error description when QEMU client receives it, other than plainly printing 'Invalid error code' Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-03-15sheepdog: set io_flush handler in do_co_reqMORITA Kazutaka
If an io_flush handler is not set, qemu_aio_wait doesn't invoke callbacks. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-15sheepdog: use non-blocking fd in coroutine contextMORITA Kazutaka
Using a blocking socket in the coroutine context reduces the chance of switching to other work. This patch makes the sheepdog driver use a non-blocking fd always. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-04sheepdog: add support for connecting to unix domain socketMORITA Kazutaka
This patch adds support for a unix domain socket for a connection between qemu and local sheepdog server. You can use the unix domain socket with the following syntax: $ qemu sheepdog+unix:///<vdiname>?socket=<socket path>[#snapid] Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-04sheepdog: use inet_connect to simplify connect codeMORITA Kazutaka
This uses the form "<host>:<port>" for the representation of the sheepdog server to use inet_connect. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-04sheepdog: accept URIsMORITA Kazutaka
The URI syntax is consistent with the NBD and Gluster syntax. The syntax is sheepdog[+tcp]://[host:port]/vdiname[#snapid|#tag] Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-04move socket_set_nodelay to osdep.cMORITA Kazutaka
Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-02-01sheepdog: pass vdi_id to sheep daemon for sd_close()Liu Yuan
Sheep daemon needs vdi_id to identify which vdi is closed to release resources such as object cache. Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-15sheepdog: clean up sd_aio_setup()Liu Yuan
The last two parameters of sd_aio_setup() are never used, so remove them. Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-15sheepdog: multiplex the rw FD to flush cacheLiu Yuan
This will reduce sockfds connected to the sheep server to one, which simply the future hacks. Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-14sheepdog: implement direct write semanticsLiu Yuan
Sheepdog supports both writeback/writethrough write but has not yet supported DIRECTIO semantics which bypass the cache completely even if Sheepdog daemon is set up with cache enabled. Suppose cache is enabled on Sheepdog daemon size, the new cache control is cache=writeback # enable the writeback semantics for write cache=writethrough # enable the emulated writethrough semantics for write cache=directsync # disable cache competely Guest WCE toggling on the run time to toggle writeback/writethrough is also supported. Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-02sheepdog: pass oid directly to send_pending_req()Liu Yuan
Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-02sheepdog: don't update inode when create_and_write failsLiu Yuan
For the error case such as SD_RES_NO_SPACE, we shouldn't update the inode bitmap to avoid the scenario that the object is allocated but wasn't created at the server side. This will result in VM's IO error on the failed object. Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Cc: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Reviewed-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-19misc: move include files to include/qemu/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19block: move include files to include/block/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-11-14aio: rename AIOPool to AIOCBInfoStefan Hajnoczi
Now that AIOPool no longer keeps a freelist, it isn't really a "pool" anymore. Rename it to AIOCBInfo and make it const since it no longer needs to be modified. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-10-12sheepdog: use bool for boolean variablesMORITA Kazutaka
This improves readability. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-10-05sheepdog: avoid a few buffer overrunsJim Meyering
* parse_vdiname: Use pstrcpy, not strncpy, when the destination buffer must be NUL-terminated. * sd_open: Likewise, avoid buffer overrun. * do_sd_create: Likewise. Leave the preceding memset, since pstrcpy does not NUL-fill, and filename needs that. * sd_snapshot_create: Add a comment/question. * find_vdi_name: Remove a useless memset. * sd_snapshot_goto: Remove a useless memset. Use pstrcpy to NUL-terminate, because find_vdi_name requires that its vdi arg (filename parameter) be NUL-terminated. It seems ok not to NUL-fill the buffer. Do the same for snapid: remove useless memset-0 (instead, zero tag[0]). Use pstrcpy, not strncpy. * sd_snapshot_list: Use pstrcpy, not strncpy to write into the ->name member. Each must be NUL-terminated. Acked-by: Kevin Wolf <kwolf@redhat.com> Acked-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-24block: do not parse BDRV_O_CACHE_WB in block driversJeff Cody
Block drivers should ignore BDRV_O_CACHE_WB in .bdrv_open flags, and in the bs->open_flags. This patch removes the code, leaving the behaviour behind as if BDRV_O_CACHE_WB was set. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-12sheepdog: fix savevm and loadvmMORITA Kazutaka
This patch sets data to be sent to Sheepdog correctly and fixes savevm and loadvm operations on a Sheepdog image. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-08-22sheepdog: don't leak socket file descriptor upon connection failureJim Meyering
Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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