diff options
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 ecf340047cde..ced1a5f5b776 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c | |||
@@ -56,11 +56,6 @@ | |||
56 | #include <net/addrconf.h> | 56 | #include <net/addrconf.h> |
57 | #include <net/inet_frag.h> | 57 | #include <net/inet_frag.h> |
58 | 58 | ||
59 | int sysctl_ip6frag_high_thresh __read_mostly = 256*1024; | ||
60 | int sysctl_ip6frag_low_thresh __read_mostly = 192*1024; | ||
61 | |||
62 | int sysctl_ip6frag_time __read_mostly = IPV6_FRAG_TIMEOUT; | ||
63 | |||
64 | struct ip6frag_skb_cb | 59 | struct ip6frag_skb_cb |
65 | { | 60 | { |
66 | struct inet6_skb_parm h; | 61 | struct inet6_skb_parm h; |
@@ -87,6 +82,13 @@ struct frag_queue | |||
87 | __u16 nhoffset; | 82 | __u16 nhoffset; |
88 | }; | 83 | }; |
89 | 84 | ||
85 | struct inet_frags_ctl ip6_frags_ctl __read_mostly = { | ||
86 | .high_thresh = 256 * 1024, | ||
87 | .low_thresh = 192 * 1024, | ||
88 | .timeout = IPV6_FRAG_TIMEOUT, | ||
89 | .secret_interval = 10 * 60 * HZ, | ||
90 | }; | ||
91 | |||
90 | static struct inet_frags ip6_frags; | 92 | static struct inet_frags ip6_frags; |
91 | 93 | ||
92 | int ip6_frag_nqueues(void) | 94 | int ip6_frag_nqueues(void) |
@@ -147,8 +149,6 @@ static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr, | |||
147 | return c & (INETFRAGS_HASHSZ - 1); | 149 | return c & (INETFRAGS_HASHSZ - 1); |
148 | } | 150 | } |
149 | 151 | ||
150 | int sysctl_ip6frag_secret_interval __read_mostly = 10 * 60 * HZ; | ||
151 | |||
152 | static void ip6_frag_secret_rebuild(unsigned long dummy) | 152 | static void ip6_frag_secret_rebuild(unsigned long dummy) |
153 | { | 153 | { |
154 | unsigned long now = jiffies; | 154 | unsigned long now = jiffies; |
@@ -177,7 +177,7 @@ static void ip6_frag_secret_rebuild(unsigned long dummy) | |||
177 | } | 177 | } |
178 | write_unlock(&ip6_frags.lock); | 178 | write_unlock(&ip6_frags.lock); |
179 | 179 | ||
180 | mod_timer(&ip6_frags.secret_timer, now + sysctl_ip6frag_secret_interval); | 180 | mod_timer(&ip6_frags.secret_timer, now + ip6_frags_ctl.secret_interval); |
181 | } | 181 | } |
182 | 182 | ||
183 | /* Memory Tracking Functions. */ | 183 | /* Memory Tracking Functions. */ |
@@ -256,7 +256,7 @@ static void ip6_evictor(struct inet6_dev *idev) | |||
256 | struct list_head *tmp; | 256 | struct list_head *tmp; |
257 | int work; | 257 | int work; |
258 | 258 | ||
259 | work = atomic_read(&ip6_frags.mem) - sysctl_ip6frag_low_thresh; | 259 | work = atomic_read(&ip6_frags.mem) - ip6_frags_ctl.low_thresh; |
260 | if (work <= 0) | 260 | if (work <= 0) |
261 | return; | 261 | return; |
262 | 262 | ||
@@ -348,7 +348,7 @@ static struct frag_queue *ip6_frag_intern(struct frag_queue *fq_in) | |||
348 | #endif | 348 | #endif |
349 | fq = fq_in; | 349 | fq = fq_in; |
350 | 350 | ||
351 | if (!mod_timer(&fq->q.timer, jiffies + sysctl_ip6frag_time)) | 351 | if (!mod_timer(&fq->q.timer, jiffies + ip6_frags_ctl.timeout)) |
352 | atomic_inc(&fq->q.refcnt); | 352 | atomic_inc(&fq->q.refcnt); |
353 | 353 | ||
354 | atomic_inc(&fq->q.refcnt); | 354 | atomic_inc(&fq->q.refcnt); |
@@ -754,7 +754,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp) | |||
754 | return 1; | 754 | return 1; |
755 | } | 755 | } |
756 | 756 | ||
757 | if (atomic_read(&ip6_frags.mem) > sysctl_ip6frag_high_thresh) | 757 | if (atomic_read(&ip6_frags.mem) > ip6_frags_ctl.high_thresh) |
758 | ip6_evictor(ip6_dst_idev(skb->dst)); | 758 | ip6_evictor(ip6_dst_idev(skb->dst)); |
759 | 759 | ||
760 | if ((fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr, | 760 | if ((fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr, |
@@ -788,8 +788,9 @@ void __init ipv6_frag_init(void) | |||
788 | 788 | ||
789 | init_timer(&ip6_frags.secret_timer); | 789 | init_timer(&ip6_frags.secret_timer); |
790 | ip6_frags.secret_timer.function = ip6_frag_secret_rebuild; | 790 | ip6_frags.secret_timer.function = ip6_frag_secret_rebuild; |
791 | ip6_frags.secret_timer.expires = jiffies + sysctl_ip6frag_secret_interval; | 791 | ip6_frags.secret_timer.expires = jiffies + ip6_frags_ctl.secret_interval; |
792 | add_timer(&ip6_frags.secret_timer); | 792 | add_timer(&ip6_frags.secret_timer); |
793 | 793 | ||
794 | ip6_frags.ctl = &ip6_frags_ctl; | ||
794 | inet_frags_init(&ip6_frags); | 795 | inet_frags_init(&ip6_frags); |
795 | } | 796 | } |