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hyperv: Add support for vNIC hot removal

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This patch adds proper handling of the vNIC hot removal event, which includes
a rescind-channel-offer message from the host side that triggers vNIC close and
removal. In this case, the notices to the host during close and removal is not
necessary because the channel is rescinded. This patch blocks these unnecessary
messages, and lets vNIC removal process complete normally.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Haiyang Zhang 2014-12-01 13:28:39 -08:00 • committed by David S. Miller
parent 6867b17b26
commit c3582a2c4d
4 changed files with 10 additions and 0 deletions
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include/linux/hyperv.h
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@ -650,6 +650,8 @@ struct vmbus_channel {
u8 monitor_grp;
u8 monitor_bit;
bool rescind; /* got rescind msg */
u32 ringbuffer_gpadlhandle;
/* Allocated memory for ring buffer */