- 20 Dec, 2017 40 commits
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Sagi Grimberg authored
[ Upstream commit b25634e2 ] When handling a new recv command, we grab a new rsp resource and check for the queue state being live. In case the queue is not in live state, we simply restore the rsp back to the free list. However in this flow we didn't set rsp->queue yet, so we cannot dereference it. Instead, make sure to initialize rsp->queue (and other rsp members) as soon as possible so we won't reference uninitialized variables. Reported-by:
Yi Zhang <yizhan@redhat.com> Reported-by:
Raju Rangoju <rajur@chelsio.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Tested-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
Sasha Levin <alexander.levin@verizon.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Sagi Grimberg authored
[ Upstream commit d11ea004 ] percpu_ref_kill is not enough to prevent subsequent percpu_ref_tryget_live from failing. Hence call perfcpu_ref_kill_confirm to make it safe. Reviewed-by:
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Sagi Grimberg authored
[ Upstream commit e4c5d376 ] we need to destroy the nvmet sq and let it finish gracefully before continue to cleanup the queue. Reviewed-by:
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David Howells authored
[ Upstream commit 954cd6dc ] Fix the way in which a call that's in progress and being waited for is aborted in the case that EINTR is detected. We should be sending RX_USER_ABORT rather than RX_CALL_DEAD as the abort code. Note that since the only two ways out of the loop are if the call completes or if a signal happens, the kill-the-call clause after the loop has finished can only happen in the case of EINTR. This means that we only have one abort case to deal with, not two, and the "KWC" case can never happen and so can be deleted. Note further that simply aborting the call isn't necessarily the best thing here since at this point: the request has been entirely sent and it's likely the server will do the operation anyway - whether we abort it or not. In future, we should punt the handling of the remainder of the call off to a background thread. Reported-by:
Marc Dionne <marc.c.dionne@auristor.com> Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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David Howells authored
[ Upstream commit 7286a35e ] Fix afs_kill_pages() in two ways: (1) If a writeback has been partially flushed, then if we try and kill the pages it contains, some of them may no longer be undergoing writeback and end_page_writeback() will assert. Fix this by checking to see whether the page in question is actually undergoing writeback before ending that writeback. (2) The loop that scans for pages to kill doesn't increase the first page index, and so the loop may not terminate, but it will try to process the same pages over and over again. Fix this by increasing the first page index to one after the last page we processed. Signed-off-by:
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David Howells authored
[ Upstream commit 6d06b0d2 ] afs_write_begin() leaks a ref and a lock on a page if afs_fill_page() fails. Fix the leak by unlocking and releasing the page in the error path. Signed-off-by:
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Marc Dionne authored
[ Upstream commit ab94f5d0 ] The inode timestamps should be set from the client time in the status received from the server, rather than the server time which is meant for internal server use. Set AFS_SET_MTIME and populate the mtime for operations that take an input status, such as file/dir creation and StoreData. If an input time is not provided the server will set the vnode times based on the current server time. In a situation where the server has some skew with the client, this could lead to the client seeing a timestamp in the future for a file that it just created or wrote. Signed-off-by:
Marc Dionne <marc.dionne@auristor.com> Signed-off-by:
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David Howells authored
[ Upstream commit 70af0e3b ] If we receive a network error, a remote abort or a protocol error whilst we're still transmitting data, make sure we return an appropriate error to the caller rather than ESHUTDOWN or ECONNABORTED. Signed-off-by:
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David Howells authored
[ Upstream commit 1157f153 ] When we are given an invalid operation ID, we should abort that with RXGEN_OPCODE rather than RX_INVALID_OPERATION. Also map RXGEN_OPCODE to -ENOTSUPP. Signed-off-by:
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David Howells authored
[ Upstream commit 146a1192 ] afs_fs_store_data() works out of the size of the write it's going to make, but it uses 32-bit unsigned subtraction in one place that gets automatically cast to loff_t. However, if to < offset, then the number goes negative, but as the result isn't signed, this doesn't get sign-extended to 64-bits when placed in a loff_t. Fix by casting the operands to loff_t. Signed-off-by:
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Tina Ruchandani authored
[ Upstream commit 56e71431 ] get_seconds() returns real wall-clock seconds. On 32-bit systems this value will overflow in year 2038 and beyond. This patch changes afs_vnode record to use ktime_get_real_seconds() instead, for the fields cb_expires and cb_expires_at. Signed-off-by:
Tina Ruchandani <ruchandani.tina@gmail.com> Signed-off-by:
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Tina Ruchandani authored
[ Upstream commit 8a79790b ] get_seconds() returns real wall-clock seconds. On 32-bit systems this value will overflow in year 2038 and beyond. This patch changes afs's vlocation record to use ktime_get_real_seconds() instead, for the fields time_of_death and update_at. Signed-off-by:
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David Howells authored
[ Upstream commit 58fed94d ] Flush outstanding writes in afs when an fd is closed. This is what NFS and CIFS do. Reported-by:
Marc Dionne <marc.c.dionne@gmail.com> Signed-off-by:
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Marc Dionne authored
[ Upstream commit bcd89270 ] Servers may send a callback array that is the same size as the FID array, or an empty array. If the callback count is 0, the code would attempt to read (fid_count * 12) bytes of data, which would fail and result in an unmarshalling error. This would lead to stale data for remotely modified files or directories. Store the callback array size in the internal afs_call structure and use that to determine the amount of data to read. Signed-off-by:
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Marc Dionne authored
[ Upstream commit 627f4694 ] Mode bits for an afs file should not be enforced in the usual way. For files, the absence of user bits can restrict file access with respect to what is granted by the server. These bits apply regardless of the owner or the current uid; the rest of the mode bits (group, other) are ignored. Signed-off-by:
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Marc Dionne authored
[ Upstream commit 6186f078 ] The group was hard coded to GLOBAL_ROOT_GID; use the group ID that was received from the server. Signed-off-by:
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David Howells authored
[ Upstream commit 29c8bbbd ] In afs_writepages_region(), inside the loop where we find dirty pages to deal with, one of the if-statements is missing a put_page(). Signed-off-by:
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Alex Deucher authored
[ Upstream commit 66822d81 ] Higher sclks seem to be unstable on some boards. bug: https://bugs.freedesktop.org/show_bug.cgi?id=100222Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by:
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yong mao authored
[ Upstream commit 40ceda09 ] This patch can fix two issues: Issue 1: In previous code, div may be overflow when setting clock frequency as f_min. We can use DIV_ROUND_UP to fix this boundary related issue. Issue 2: In previous code, we can not set the correct clock frequency when div equals 0xff. Signed-off-by:
Yong Mao <yong.mao@mediatek.com> Signed-off-by:
Chaotian Jing <chaotian.jing@mediatek.com> Reviewed-by:
Daniel Kurtz <djkurtz@chromium.org> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
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Steven Rostedt (VMware) authored
[ Upstream commit 2317d5f1 ] I was testing Daniel's changes with his test case, and tweaked it a little. Instead of having the runtime equal to the deadline, I increased the deadline ten fold. Daniel's test case had: attr.sched_runtime = 2 * 1000 * 1000; /* 2 ms */ attr.sched_deadline = 2 * 1000 * 1000; /* 2 ms */ attr.sched_period = 2 * 1000 * 1000 * 1000; /* 2 s */ To make it more interesting, I changed it to: attr.sched_runtime = 2 * 1000 * 1000; /* 2 ms */ attr.sched_deadline = 20 * 1000 * 1000; /* 20 ms */ attr.sched_period = 2 * 1000 * 1000 * 1000; /* 2 s */ The results were rather surprising. The behavior that Daniel's patch was fixing came back. The task started using much more than .1% of the CPU. More like 20%. Looking into this I found that it was due to the dl_entity_overflow() constantly returning true. That's because it uses the relative period against relative runtime vs the absolute deadline against absolute runtime. runtime / (deadline - t) > dl_runtime / dl_period There's even a comment mentioning this, and saying that when relative deadline equals relative period, that the equation is the same as using deadline instead of period. That comment is backwards! What we really want is: runtime / (deadline - t) > dl_runtime / dl_deadline We care about if the runtime can make its deadline, not its period. And then we can say "when the deadline equals the period, the equation is the same as using dl_period instead of dl_deadline". After correcting this, now when the task gets enqueued, it can throttle correctly, and Daniel's fix to the throttling of sleeping deadline tasks works even when the runtime and deadline are not the same. Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by:
Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Juri Lelli <juri.lelli@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luca Abeni <luca.abeni@santannapisa.it> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Romulo Silva de Oliveira <romulo.deoliveira@ufsc.br> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tommaso Cucinotta <tommaso.cucinotta@sssup.it> Link: http://lkml.kernel.org/r/02135a27f1ae3fe5fd032568a5a2f370e190e8d7.1488392936.git.bristot@redhat.comSigned-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
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Daniel Bristot de Oliveira authored
[ Upstream commit df8eac8c ] During the activation, CBS checks if it can reuse the current task's runtime and period. If the deadline of the task is in the past, CBS cannot use the runtime, and so it replenishes the task. This rule works fine for implicit deadline tasks (deadline == period), and the CBS was designed for implicit deadline tasks. However, a task with constrained deadline (deadine < period) might be awakened after the deadline, but before the next period. In this case, replenishing the task would allow it to run for runtime / deadline. As in this case deadline < period, CBS enables a task to run for more than the runtime / period. In a very loaded system, this can cause a domino effect, making other tasks miss their deadlines. To avoid this problem, in the activation of a constrained deadline task after the deadline but before the next period, throttle the task and set the replenishing timer to the begin of the next period, unless it is boosted. Reproducer: --------------- %< --------------- int main (int argc, char **argv) { int ret; int flags = 0; unsigned long l = 0; struct timespec ts; struct sched_attr attr; memset(&attr, 0, sizeof(attr)); attr.size = sizeof(attr); attr.sched_policy = SCHED_DEADLINE; attr.sched_runtime = 2 * 1000 * 1000; /* 2 ms */ attr.sched_deadline = 2 * 1000 * 1000; /* 2 ms */ attr.sched_period = 2 * 1000 * 1000 * 1000; /* 2 s */ ts.tv_sec = 0; ts.tv_nsec = 2000 * 1000; /* 2 ms */ ret = sched_setattr(0, &attr, flags); if (ret < 0) { perror("sched_setattr"); exit(-1); } for(;;) { /* XXX: you may need to adjust the loop */ for (l = 0; l < 150000; l++); /* * The ideia is to go to sleep right before the deadline * and then wake up before the next period to receive * a new replenishment. */ nanosleep(&ts, NULL); } exit(0); } --------------- >% --------------- On my box, this reproducer uses almost 50% of the CPU time, which is obviously wrong for a task with 2/2000 reservation. Signed-off-by:
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Daniel Bristot de Oliveira authored
[ Upstream commit 5ac69d37 ] Currently, the replenishment timer is set to fire at the deadline of a task. Although that works for implicit deadline tasks because the deadline is equals to the begin of the next period, that is not correct for constrained deadline tasks (deadline < period). For instance: f.c: --------------- %< --------------- int main (void) { for(;;); } --------------- >% --------------- # gcc -o f f.c # trace-cmd record -e sched:sched_switch \ -e syscalls:sys_exit_sched_setattr \ chrt -d --sched-runtime 490000000 \ --sched-deadline 500000000 \ --sched-period 1000000000 0 ./f # trace-cmd report | grep "{pid of ./f}" After setting parameters, the task is replenished and continue running until being throttled: f-11295 [003] 13322.113776: sys_exit_sched_setattr: 0x0 The task is throttled after running 492318 ms, as expected: f-11295 [003] 13322.606094: sched_switch: f:11295 [-1] R ==> watchdog/3:32 [0] But then, the task is replenished 500719 ms after the first replenishment: <idle>-0 [003] 13322.614495: sched_switch: swapper/3:0 [120] R ==> f:11295 [-1] Running for 490277 ms: f-11295 [003] 13323.104772: sched_switch: f:11295 [-1] R ==> swapper/3:0 [120] Hence, in the first period, the task runs 2 * runtime, and that is a bug. During the first replenishment, the next deadline is set one period away. So the runtime / period starts to be respected. However, as the second replenishment took place in the wrong instant, the next replenishment will also be held in a wrong instant of time. Rather than occurring in the nth period away from the first activation, it is taking place in the (nth period - relative deadline). Signed-off-by:
Luca Abeni <luca.abeni@santannapisa.it> Reviewed-by:
Juri Lelli <juri.lelli@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Romulo Silva de Oliveira <romulo.deoliveira@ufsc.br> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tommaso Cucinotta <tommaso.cucinotta@sssup.it> Link: http://lkml.kernel.org/r/ac50d89887c25285b47465638354b63362f8adff.1488392936.git.bristot@redhat.comSigned-off-by:
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Wanpeng Li authored
[ Upstream commit dcc3b5ff ] The following warning can be triggered by hot-unplugging the CPU on which an active SCHED_DEADLINE task is running on: ------------[ cut here ]------------ WARNING: CPU: 7 PID: 0 at kernel/sched/sched.h:833 replenish_dl_entity+0x71e/0xc40 rq->clock_update_flags < RQCF_ACT_SKIP CPU: 7 PID: 0 Comm: swapper/7 Tainted: G B 4.11.0-rc1+ #24 Hardware name: LENOVO ThinkCentre M8500t-N000/SHARKBAY, BIOS FBKTC1AUS 02/16/2016 Call Trace: <IRQ> dump_stack+0x85/0xc4 __warn+0x172/0x1b0 warn_slowpath_fmt+0xb4/0xf0 ? __warn+0x1b0/0x1b0 ? debug_check_no_locks_freed+0x2c0/0x2c0 ? cpudl_set+0x3d/0x2b0 replenish_dl_entity+0x71e/0xc40 enqueue_task_dl+0x2ea/0x12e0 ? dl_task_timer+0x777/0x990 ? __hrtimer_run_queues+0x270/0xa50 dl_task_timer+0x316/0x990 ? enqueue_task_dl+0x12e0/0x12e0 ? enqueue_task_dl+0x12e0/0x12e0 __hrtimer_run_queues+0x270/0xa50 ? hrtimer_cancel+0x20/0x20 ? hrtimer_interrupt+0x119/0x600 hrtimer_interrupt+0x19c/0x600 ? trace_hardirqs_off+0xd/0x10 local_apic_timer_interrupt+0x74/0xe0 smp_apic_timer_interrupt+0x76/0xa0 apic_timer_interrupt+0x93/0xa0 The DL task will be migrated to a suitable later deadline rq once the DL timer fires and currnet rq is offline. The rq clock of the new rq should be updated. This patch fixes it by updating the rq clock after holding the new rq's rq lock. Signed-off-by:
Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by:
Matt Fleming <matt@codeblueprint.co.uk> Cc: Juri Lelli <juri.lelli@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1488865888-15894-1-git-send-email-wanpeng.li@hotmail.comSigned-off-by:
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Sara Sharon authored
[ Upstream commit 9a3fcf91 ] When a station is asleep, the fw will set it as "asleep". All queues that are used only by one station will be stopped by the fw. In pre-DQA mode this was relevant for aggregation queues. However, in DQA mode a queue is owned by one station only, so all queues will be stopped. As a result, we don't expect to get filtered frames back to mac80211 and don't have to maintain the entire pending_frames state logic, the same way as we do in aggregations. The correct behavior is to align DQA behavior with the aggregation queue behaviour pre-DQA: - Don't count pending frames. - Let mac80211 know we have frames in these queues so that it can properly handle trigger frames. When a trigger frame is received, mac80211 tells the driver to send frames from the queues using release_buffered_frames. The driver will tell the fw to let frames out even if the station is asleep. This is done by iwl_mvm_sta_modify_sleep_tx_count. Reported-and-tested-by:
Jens Axboe <axboe@kernel.dk> Reported-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Sara Sharon <sara.sharon@intel.com> Signed-off-by:
Luca Coelho <luciano.coelho@intel.com> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
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Vitaly Kuznetsov authored
[ Upstream commit e9c18ae6 ] Waiting for release_event in all three drivers introduced issues on release as on_reset() hook is not always called. E.g. if the device was never opened we will never get the completion. Move the waiting code to hvutil_transport_destroy() and make sure it is only called when the device is open. hvt->lock serialization should guarantee the absence of races. Fixes: 5a66fecb ("Drivers: hv: util: kvp: Fix a rescind processing issue") Fixes: 20951c75 ("Drivers: hv: util: Fcopy: Fix a rescind processing issue") Fixes: d77044d1 ("Drivers: hv: util: Backup: Fix a rescind processing issue") Reported-by:
Dexuan Cui <decui@microsoft.com> Tested-by:
Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
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Alex Deucher authored
[ Upstream commit 0f424de1 ] OLAND 0x1002:0x6604 0x1028:0x066F 0x00 seems to have problems with higher sclks. Acked-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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Taku Izumi authored
[ Upstream commit fe8daf5f ] This patch fixes netdev->features for Extended Socket network device. Currently Extended Socket network device's netdev->feature claims NETIF_F_HW_CSUM, however this is completely wrong. There's no feature of checksum offloading. That causes invalid TCP/UDP checksum and packet rejection when IP forwarding from Extended Socket network device to other network device. NETIF_F_HW_CSUM should be omitted. Signed-off-by:
Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Don Brace authored
[ Upstream commit 2ef28849 ] Resets can take longer than DEFAULT_TIMEOUT. Reviewed-by:
Scott Benesh <scott.benesh@microsemi.com> Reviewed-by:
Scott Teel <scott.teel@microsemi.com> Reviewed-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
Don Brace <don.brace@microsemi.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Don Brace authored
[ Upstream commit 87b9e6aa ] Avoid rescan storms. No need to queue another if one is pending. Reviewed-by:
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Don Brace authored
[ Upstream commit 85b29008 ] - Add in a new case for volume offline. Resolves internal testing bug for multilun array management. - Return correct status for failed TURs. Reviewed-by:
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Kuninori Morimoto authored
[ Upstream commit 62a10498 ] R-Car datasheet indicates "Clear DE in PDMACHCR" for transfer stop, but current code clears all bits in PDMACHCR. Because of this, DE bit might never been cleared, and it causes CMD overflow. This patch fixes this issue. Signed-off-by:
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by:
Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Stafford Horne authored
[ Upstream commit 154e67cd ] Was getting the following error with allmodconfig: ERROR: "__get_user_bad" [lib/test_user_copy.ko] undefined! This was simply a missing break statement, causing an unwanted fall through. Signed-off-by:
Stafford Horne <shorne@gmail.com> Signed-off-by:
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Alexander Shishkin authored
[ Upstream commit 340837f9 ] This adds Intel(R) Trace Hub PCI ID for Gemini Lake SOC. Signed-off-by:
Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by:
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Arnd Bergmann authored
[ Upstream commit 655d9ca9 ] The AMD ACP driver adds "-I../acp -I../acp/include" to the gcc command line, which makes no sense, since these are evaluated relative to the build directory. When we build with "make W=1", they instead cause a warning: cc1: error: ../acp/: No such file or directory [-Werror=missing-include-dirs] cc1: error: ../acp/include: No such file or directory [-Werror=missing-include-dirs] cc1: all warnings being treated as errors ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.o' failed ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.o' failed ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.o' failed This removes the subdir-ccflags variable that evidently did not serve any purpose here. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Ram Amrani authored
[ Upstream commit 1df2aded ] Before iterating over the the LL2 Rx ring, the ring's spinlock is taken via spin_lock_irqsave(). The actual processing of the packet [including handling by the protocol driver] is done without said lock, so qed releases the spinlock and re-claims it afterwards. Problem is that the final spin_lock_irqrestore() at the end of the iteration uses the original flags saved from the initial irqsave() instead of the flags from the most recent irqsave(). So it's possible that the interrupt status would be incorrect at the end of the processing. Fixes: 0a7fb11c ("qed: Add Light L2 support"); CC: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by:
Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by:
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Mintz, Yuval authored
[ Upstream commit 752ecb2d ] When receiving an Rx LL2 packet, qed fails to unmap the previous buffer. Fixes: 0a7fb11c ("qed: Add Light L2 support"); Signed-off-by:
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Ram Amrani authored
[ Upstream commit f3e48119 ] The Doorbell HW block can be configured at a granularity of 16 x CIDs, so we need to make sure that the actual number of CIDs configured would be a multiplication of 16. Today, when RoCE is enabled - given that the number is unaligned, doorbelling the higher CIDs would fail to reach the firmware and would eventually timeout. Fixes: dbb799c3 ("qed: Initialize hardware for new protocols") Signed-off-by:
Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by:
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Jiri Pirko authored
[ Upstream commit e9093b11 ] The num_rec field is 8 bit, so the maximal count number is 255. This fixes vlans learning not being enabled for wider ranges than 255. Fixes: a4feea74 ("mlxsw: reg: Add Switch Port VLAN MAC Learning register definition") Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Reviewed-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Jiri Pirko authored
[ Upstream commit f004ec06 ] The num_rec field is 8 bit, so the maximal count number is 255. This fixes vlans not being enabled for wider ranges than 255. Fixes: b2e345f9 ("mlxsw: reg: Add Switch Port VID and Switch Port VLAN Membership registers definitions") Signed-off-by:
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Vlad Yasevich authored
[ Upstream commit 37c343b4 ] When we notify peers of potential changes, it's also good to update IGMP memberships. For example, during VM migration, updating IGMP memberships will redirect existing multicast streams to the VM at the new location. Signed-off-by:
Vladislav Yasevich <vyasevic@redhat.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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