From: "K. Y. Srinivasan"
Hyper-V allows the guest to report panic and the guest can pass additional
information. All this is logged on the host. Currently Linux is passing back
information that is not particularly useful. Make the following changes:
1. Windows uses crash MSR P0 to report bugchec
From: Stephen Hemminger
When investigating performance, it is useful to be able to look at
the number of host and guest events per-channel. This is equivalent
to per-device interrupt statistics.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
Documentation/ABI/stable/sysf
From: Stephen Hemminger
Make sure and initialize reserved fields in messages to host,
rather than passing stack junk.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hv/channel.c b/drivers/
From: Dexuan Cui
Without the patch, vmbus_hvsock_device_unregister() can destroy the device
prematurely when close() is called, and can cause NULl dereferencing or
potential data loss (the last portion of the data stream may be dropped
prematurely).
Please consider this for 4.14.
Signed-off-by:
From: "K. Y. Srinivasan"
This patch addresses the following bugs in the current rescind handling code:
1. Fixes a race condition where we may be invoking hv_process_channel_removal()
on an already freed channel.
2. Prevents indefinite wait when rescinding sub-channels by correctly setting
the p
From: "K. Y. Srinivasan"
Add additional per-channel sysfs information to help debug performance
issues.
Greg, please apply this patch-set to 4.15-rc1.
Stephen Hemminger (2):
vmbus: add per-channel sysfs info
Drivers: hv: vmbus: Expose per-channel interrupts and events counters
Documentati
From: Stephen Hemminger
When investigating performance, it is useful to be able to look at
the number of host and guest events per-channel. This is equivalent
to per-device interrupt statistics.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
Documentation/ABI/stable/sysf
From: Stephen Hemminger
This extends existing vmbus related sysfs structure to provide per-channel
state information. This is useful when diagnosing issues with multiple
queues in networking and storage.
The existing sysfs only displayed information about the primary
channel. The one place it re
From: "K. Y. Srinivasan"
Miscellaneous fixes. Greg, please apply these to 4.14-final.
Dexuan Cui (1):
vmbus: don't acquire the mutex in vmbus_hvsock_device_unregister()
Olaf Hering (1):
Drivers: hv: fcopy: restore correct transfer length
drivers/hv/channel_mgmt.c | 4
drivers/hv/hv_f
From: Olaf Hering
Till recently the expected length of bytes read by the
daemon did depend on the context. It was either hv_start_fcopy or
hv_do_fcopy. The daemon had a buffer size of two pages, which was much
larger than needed.
Now the expected length of bytes read by the
daemon changed slight
From: Dexuan Cui
Due to commit 54a66265d675 ("Drivers: hv: vmbus: Fix rescind handling"),
we need this patch to resolve the below deadlock:
after we get the mutex in vmbus_hvsock_device_unregister() and call
vmbus_device_unregister() -> device_unregister() -> ... -> device_release()
-> vmbus_dev
From: K. Y. Srinivasan
Miscellaneous fixes.
Alex Ng (5):
Tools: hv: vss: Skip freezing filesystems backed by loop
Drivers: hv: balloon: Correctly update onlined page count
Drivers: hv: balloon: Show the max dynamic memory assigned
Drivers: hv: balloon: Initialize last_post_time on startu
From: Alex Ng
Since a loop device is backed by a file, a backup will already result in
its parent filesystem being frozen. It's sufficient to just freeze the
parent filesystem, so we can skip the loop device.
This avoids a situation where a loop device and its parent filesystem are
both frozen a
From: Alex Ng
Previously, num_pages_onlined was updated using value from memory online
notifier. This is incorrect because they assume that all hot-added pages
are online, even though we only online the amount that's backed by the
host. We should update num_pages_onlined only when the balloon dri
From: Alex Ng
Previously we were only showing max number of pages. We should make it
more clear that this value is the max amount of dynamic memory that the
Hyper-V host is willing to assign to this guest.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c |
From: Alex Ng
When left uninitialized, this sometimes fails the following check in
post_status():
if (!time_after(now, (last_post_time + HZ))) {
return;
}
This causes unnecessary delays in reporting memory pressure to host after
booting up.
Signed-off-by: Alex N
From: Alex Ng
There's a bug which passes the output buffer size as MAX_IP_ADDR_SIZE,
when converting the adapter_id field to UTF16. This is much larger than
the actual size (MAX_ADAPTER_ID_SIZE). Fix this by passing the proper
size.
Fortunately, the translation is limited by the length of the in
From: K. Y. Srinivasan
To deal with the merge conflict between net-next and char-misc trees,
revert commit bb08d431a914 from char-misc tree. This commit can be rebased
and applied once net-next picks up char-misc changes.
---
include/linux/hyperv.h | 32 +---
1 file
From: Vitaly Kuznetsov
The auto incremented counter is not being used anymore, get rid of it.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c |2 --
include/linux/hyperv.h|3 ---
2 files changed, 0 insertions(+), 5 deletions(-)
diff -
From: Vivek yadav
Under stress, we have seen allocation failure in time synch code. Avoid
this dynamic allocation.
Signed-off-by: Vivek Yadav
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c | 39 ---
1 files changed, 28 insertions(+), 11 deletion
From: K. Y. Srinivasan
Use IDs that persist across reboots as vmbus device IDs.
Vitaly Kuznetsov (2):
Drivers: hv: make VMBus bus ids persistent
Drivers: hv: get rid of id in struct vmbus_channel
drivers/hv/channel_mgmt.c |2 --
drivers/hv/vmbus_drv.c|4 ++--
include/linux/hype
From: Vitaly Kuznetsov
Some tools use bus ids to identify devices and they count on the fact
that these ids are persistent across reboot. This may be not true for
VMBus as we use auto incremented counter from alloc_channel() as such
id. Switch to using if_instance from channel offer, this id is s
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