diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-08-02 19:09:16 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-10 17:50:22 +0300 |
| commit | 057841713cfff62b4485cdd2b245f05b7ea3ba16 (patch) | |
| tree | 6bb15aa4313f06581a28ee2f0e45fc58fb666a57 /drivers/hv/connection.c | |
| parent | 6a8edbd0c54ae266b12f4f63e406313481c9d4bc (diff) | |
| download | linux-057841713cfff62b4485cdd2b245f05b7ea3ba16.tar.xz | |
hyper-v: Use fast hypercall for HVCALL_SIGNAL_EVENT
We need to pass only 8 bytes of input for HvSignalEvent which makes it a
perfect fit for fast hypercall. hv_input_signal_event_buffer is not needed
any more and hv_input_signal_event is converted to union for convenience.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Jork Loeser <Jork.Loeser@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Simon Xiao <sixiao@microsoft.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: devel@linuxdriverproject.org
Link: http://lkml.kernel.org/r/20170802160921.21791-5-vkuznets@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/hv/connection.c')
| -rw-r--r-- | drivers/hv/connection.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index 45e806e3112f..37ecf514189e 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -408,6 +408,6 @@ void vmbus_set_event(struct vmbus_channel *channel) if (!channel->is_dedicated_interrupt) vmbus_send_interrupt(child_relid); - hv_do_hypercall(HVCALL_SIGNAL_EVENT, channel->sig_event, NULL); + hv_do_fast_hypercall8(HVCALL_SIGNAL_EVENT, channel->sig_event); } EXPORT_SYMBOL_GPL(vmbus_set_event); |