hv_netvsc: use reciprocal divide to speed up percent calculation

Browse source

Every packet sent checks the available ring space. The calculation
can be sped up by using reciprocal divide which is multiplication.

Since ring_size can only be configured by module parameter, so it doesn't
have to be passed around everywhere. Also it should be unsigned
since it is number of pages.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Stephen Hemminger 2017-12-01 11:01:47 -08:00 • committed by David S. Miller

parent b85e06f7bb

commit a7f99d0f2b

4 changed files with 21 additions and 26 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

drivers/net/hyperv/hyperv_net.h

View file

20

drivers/net/hyperv/netvsc.c

View file

17

drivers/net/hyperv/netvsc_drv.c

View file

4

drivers/net/hyperv/rndis_filter.c

View file