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| author |   Eric Dumazet <edumazet@google.com> | 2014-03-17 20:20:49 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-03-18 14:17:55 -0400 |
| commit | d37d8ac17d38d389375060416ceedd5b19d5255c (patch) | |
| tree | ebc4defe9fa6cef650f2c231a3cba5405928cede /net/sched/sch_plug.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next (diff) | |
| download | linux-dev-d37d8ac17d38d389375060416ceedd5b19d5255c.tar.xz linux-dev-d37d8ac17d38d389375060416ceedd5b19d5255c.zip | |
net: sched: use no more than one page in struct fw_head
In commit b4e9b520ca5d ("[NET_SCHED]: Add mask support to fwmark
classifier") Patrick added an u32 field in fw_head, making it slightly
bigger than one page.
Lets use 256 slots to make fw_hash() more straight forward, and move
@mask to the beginning of the structure as we often use a small number
of skb->mark. @mask and first hash buckets share the same cache line.
This brings back the memory usage to less than 4000 bytes, and permits
John to add a rcu_head at the end of the structure later without any
worry.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: John Fastabend <john.fastabend@gmail.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_plug.c')
0 files changed, 0 insertions, 0 deletions