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| author | David S. Miller <davem@davemloft.net> | 2011-03-10 04:57:50 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-10 04:57:50 (GMT) |
| commit | cc7e17ea0427a5df319e43606a3d6c53b13a6e9c (patch) | |
| tree | 3a4030df19e212619ce4437c2100a23a35e759dd | |
| parent | 67e28ffd864eebbaf48b404d0a8cb4edd2bdc924 (diff) | |
| download | linux-cc7e17ea0427a5df319e43606a3d6c53b13a6e9c.tar.xz | |
ipv4: Optimize flow initialization in fib_validate_source().
Like in commit 44713b67db10c774f14280c129b0d5fd13c70cf2
("ipv4: Optimize flow initialization in output route lookup."
we can optimize the on-stack flow setup to only initialize
the members which are actually used.
Otherwise we bzero the entire structure, then initialize
explicitly the first half of it.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/fib_frontend.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 1d2233c..fe10bcd 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -193,19 +193,21 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif, u32 *itag, u32 mark) { struct in_device *in_dev; - struct flowi fl = { - .fl4_dst = src, - .fl4_src = dst, - .fl4_tos = tos, - .mark = mark, - .iif = oif - }; + struct flowi fl; struct fib_result res; int no_addr, rpf, accept_local; bool dev_match; int ret; struct net *net; + fl.oif = 0; + fl.iif = oif; + fl.mark = mark; + fl.fl4_dst = src; + fl.fl4_src = dst; + fl.fl4_tos = tos; + fl.fl4_scope = RT_SCOPE_UNIVERSE; + no_addr = rpf = accept_local = 0; in_dev = __in_dev_get_rcu(dev); if (in_dev) { |