core: Factor out flow calculation from get_rps_cpu
authorKrishna Kumar <krkumar2@in.ibm.com>
Wed, 4 Aug 2010 06:15:52 +0000 (06:15 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 17 Aug 2010 04:06:24 +0000 (21:06 -0700)
commitbfb564e7391340638afe4ad67744a8f3858e7566
tree7f079d9c3f020d52efb555db414476c463584967
parent6891dd25d3f82e50979b27fde1980aa96320b975
core: Factor out flow calculation from get_rps_cpu

Factor out flow calculation code from get_rps_cpu, since other
functions can use the same code.

Revisions:

v2 (Ben): Separate flow calcuation out and use in select queue.
v3 (Arnd): Don't re-implement MIN.
v4 (Changli): skb->data points to ethernet header in macvtap, and
make a fast path. Tested macvtap with this patch.
v5 (Changli):
- Cache skb->rxhash in skb_get_rxhash
- macvtap may not have pow(2) queues, so change code for
  queue selection.
    (Arnd):
- Use first available queue if all fails.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/skbuff.h
net/core/dev.c