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author | Pavel Emelyanov <xemul@openvz.org> | 2007-10-15 09:33:45 (GMT) |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-15 19:26:40 (GMT) |
commit | 04128f233f2b344f3438cde09723e9946463a573 (patch) | |
tree | 04f4518ef51c74de4d318d7ea908b3215a6aa9c8 /net/ipv6/reassembly.c | |
parent | 7eb95156d9dce2f59794264db336ce007d71638b (diff) | |
download | linux-fsl-qoriq-04128f233f2b344f3438cde09723e9946463a573.tar.xz |
[INET]: Collect common frag sysctl variables together
Some sysctl variables are used to tune the frag queues
management and it will be useful to work with them in
a common way in the future, so move them into one
structure, moreover they are the same for all the frag
management codes.
I don't place them in the existing inet_frags object,
introduced in the previous patch for two reasons:
1. to keep them in the __read_mostly section;
2. not to export the whole inet_frags objects outside.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/reassembly.c')
-rw-r--r-- | net/ipv6/reassembly.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index ecf3400..ced1a5f 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -56,11 +56,6 @@ #include <net/addrconf.h> #include <net/inet_frag.h> -int sysctl_ip6frag_high_thresh __read_mostly = 256*1024; -int sysctl_ip6frag_low_thresh __read_mostly = 192*1024; - -int sysctl_ip6frag_time __read_mostly = IPV6_FRAG_TIMEOUT; - struct ip6frag_skb_cb { struct inet6_skb_parm h; @@ -87,6 +82,13 @@ struct frag_queue __u16 nhoffset; }; +struct inet_frags_ctl ip6_frags_ctl __read_mostly = { + .high_thresh = 256 * 1024, + .low_thresh = 192 * 1024, + .timeout = IPV6_FRAG_TIMEOUT, + .secret_interval = 10 * 60 * HZ, +}; + static struct inet_frags ip6_frags; int ip6_frag_nqueues(void) @@ -147,8 +149,6 @@ static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr, return c & (INETFRAGS_HASHSZ - 1); } -int sysctl_ip6frag_secret_interval __read_mostly = 10 * 60 * HZ; - static void ip6_frag_secret_rebuild(unsigned long dummy) { unsigned long now = jiffies; @@ -177,7 +177,7 @@ static void ip6_frag_secret_rebuild(unsigned long dummy) } write_unlock(&ip6_frags.lock); - mod_timer(&ip6_frags.secret_timer, now + sysctl_ip6frag_secret_interval); + mod_timer(&ip6_frags.secret_timer, now + ip6_frags_ctl.secret_interval); } /* Memory Tracking Functions. */ @@ -256,7 +256,7 @@ static void ip6_evictor(struct inet6_dev *idev) struct list_head *tmp; int work; - work = atomic_read(&ip6_frags.mem) - sysctl_ip6frag_low_thresh; + work = atomic_read(&ip6_frags.mem) - ip6_frags_ctl.low_thresh; if (work <= 0) return; @@ -348,7 +348,7 @@ static struct frag_queue *ip6_frag_intern(struct frag_queue *fq_in) #endif fq = fq_in; - if (!mod_timer(&fq->q.timer, jiffies + sysctl_ip6frag_time)) + if (!mod_timer(&fq->q.timer, jiffies + ip6_frags_ctl.timeout)) atomic_inc(&fq->q.refcnt); atomic_inc(&fq->q.refcnt); @@ -754,7 +754,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp) return 1; } - if (atomic_read(&ip6_frags.mem) > sysctl_ip6frag_high_thresh) + if (atomic_read(&ip6_frags.mem) > ip6_frags_ctl.high_thresh) ip6_evictor(ip6_dst_idev(skb->dst)); if ((fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr, @@ -788,8 +788,9 @@ void __init ipv6_frag_init(void) init_timer(&ip6_frags.secret_timer); ip6_frags.secret_timer.function = ip6_frag_secret_rebuild; - ip6_frags.secret_timer.expires = jiffies + sysctl_ip6frag_secret_interval; + ip6_frags.secret_timer.expires = jiffies + ip6_frags_ctl.secret_interval; add_timer(&ip6_frags.secret_timer); + ip6_frags.ctl = &ip6_frags_ctl; inet_frags_init(&ip6_frags); } |