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authorTakashi Iwai <tiwai@suse.de>2010-09-03 16:38:52 -0400
committerTakashi Iwai <tiwai@suse.de>2010-09-03 16:38:52 -0400
commit68885a3ff38ed51fa02f241feb405c9922a90ee0 (patch)
tree2fc626df39d5e0e1f6b065238141f7d49187c737 /net/ipv4
parent7b28079b3284ccb15ad4f003fb7073890600d0c1 (diff)
parenta2acad8298a42b7be684a32fafaf83332bba9c2b (diff)
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/arp_tables.c5
-rw-r--r--net/ipv4/netfilter/ip_tables.c5
-rw-r--r--net/ipv4/tcp.c32
-rw-r--r--net/ipv4/tcp_cong.c5
-rw-r--r--net/ipv4/tcp_timer.c8
5 files changed, 27 insertions, 28 deletions
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 6bccba31d132..e8f4f9a57f12 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -735,6 +735,7 @@ static void get_counters(const struct xt_table_info *t,
735 if (cpu == curcpu) 735 if (cpu == curcpu)
736 continue; 736 continue;
737 i = 0; 737 i = 0;
738 local_bh_disable();
738 xt_info_wrlock(cpu); 739 xt_info_wrlock(cpu);
739 xt_entry_foreach(iter, t->entries[cpu], t->size) { 740 xt_entry_foreach(iter, t->entries[cpu], t->size) {
740 ADD_COUNTER(counters[i], iter->counters.bcnt, 741 ADD_COUNTER(counters[i], iter->counters.bcnt,
@@ -742,6 +743,7 @@ static void get_counters(const struct xt_table_info *t,
742 ++i; 743 ++i;
743 } 744 }
744 xt_info_wrunlock(cpu); 745 xt_info_wrunlock(cpu);
746 local_bh_enable();
745 } 747 }
746 put_cpu(); 748 put_cpu();
747} 749}
@@ -1418,6 +1420,9 @@ static int translate_compat_table(const char *name,
1418 if (ret != 0) 1420 if (ret != 0)
1419 break; 1421 break;
1420 ++i; 1422 ++i;
1423 if (strcmp(arpt_get_target(iter1)->u.user.name,
1424 XT_ERROR_TARGET) == 0)
1425 ++newinfo->stacksize;
1421 } 1426 }
1422 if (ret) { 1427 if (ret) {
1423 /* 1428 /*
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index c439721b165a..d163f2e3b2e9 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -909,6 +909,7 @@ get_counters(const struct xt_table_info *t,
909 if (cpu == curcpu) 909 if (cpu == curcpu)
910 continue; 910 continue;
911 i = 0; 911 i = 0;
912 local_bh_disable();
912 xt_info_wrlock(cpu); 913 xt_info_wrlock(cpu);
913 xt_entry_foreach(iter, t->entries[cpu], t->size) { 914 xt_entry_foreach(iter, t->entries[cpu], t->size) {
914 ADD_COUNTER(counters[i], iter->counters.bcnt, 915 ADD_COUNTER(counters[i], iter->counters.bcnt,
@@ -916,6 +917,7 @@ get_counters(const struct xt_table_info *t,
916 ++i; /* macro does multi eval of i */ 917 ++i; /* macro does multi eval of i */
917 } 918 }
918 xt_info_wrunlock(cpu); 919 xt_info_wrunlock(cpu);
920 local_bh_enable();
919 } 921 }
920 put_cpu(); 922 put_cpu();
921} 923}
@@ -1749,6 +1751,9 @@ translate_compat_table(struct net *net,
1749 if (ret != 0) 1751 if (ret != 0)
1750 break; 1752 break;
1751 ++i; 1753 ++i;
1754 if (strcmp(ipt_get_target(iter1)->u.user.name,
1755 XT_ERROR_TARGET) == 0)
1756 ++newinfo->stacksize;
1752 } 1757 }
1753 if (ret) { 1758 if (ret) {
1754 /* 1759 /*
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 176e11aaea77..3fb1428e526e 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -451,7 +451,8 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
451 if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)) 451 if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk))
452 mask |= POLLOUT | POLLWRNORM; 452 mask |= POLLOUT | POLLWRNORM;
453 } 453 }
454 } 454 } else
455 mask |= POLLOUT | POLLWRNORM;
455 456
456 if (tp->urg_data & TCP_URG_VALID) 457 if (tp->urg_data & TCP_URG_VALID)
457 mask |= POLLPRI; 458 mask |= POLLPRI;
@@ -2011,11 +2012,8 @@ adjudge_to_death:
2011 } 2012 }
2012 } 2013 }
2013 if (sk->sk_state != TCP_CLOSE) { 2014 if (sk->sk_state != TCP_CLOSE) {
2014 int orphan_count = percpu_counter_read_positive(
2015 sk->sk_prot->orphan_count);
2016
2017 sk_mem_reclaim(sk); 2015 sk_mem_reclaim(sk);
2018 if (tcp_too_many_orphans(sk, orphan_count)) { 2016 if (tcp_too_many_orphans(sk, 0)) {
2019 if (net_ratelimit()) 2017 if (net_ratelimit())
2020 printk(KERN_INFO "TCP: too many of orphaned " 2018 printk(KERN_INFO "TCP: too many of orphaned "
2021 "sockets\n"); 2019 "sockets\n");
@@ -3212,7 +3210,7 @@ void __init tcp_init(void)
3212{ 3210{
3213 struct sk_buff *skb = NULL; 3211 struct sk_buff *skb = NULL;
3214 unsigned long nr_pages, limit; 3212 unsigned long nr_pages, limit;
3215 int order, i, max_share; 3213 int i, max_share, cnt;
3216 unsigned long jiffy = jiffies; 3214 unsigned long jiffy = jiffies;
3217 3215
3218 BUILD_BUG_ON(sizeof(struct tcp_skb_cb) > sizeof(skb->cb)); 3216 BUILD_BUG_ON(sizeof(struct tcp_skb_cb) > sizeof(skb->cb));
@@ -3261,22 +3259,12 @@ void __init tcp_init(void)
3261 INIT_HLIST_HEAD(&tcp_hashinfo.bhash[i].chain); 3259 INIT_HLIST_HEAD(&tcp_hashinfo.bhash[i].chain);
3262 } 3260 }
3263 3261
3264 /* Try to be a bit smarter and adjust defaults depending 3262
3265 * on available memory. 3263 cnt = tcp_hashinfo.ehash_mask + 1;
3266 */ 3264
3267 for (order = 0; ((1 << order) << PAGE_SHIFT) < 3265 tcp_death_row.sysctl_max_tw_buckets = cnt / 2;
3268 (tcp_hashinfo.bhash_size * sizeof(struct inet_bind_hashbucket)); 3266 sysctl_tcp_max_orphans = cnt / 2;
3269 order++) 3267 sysctl_max_syn_backlog = max(128, cnt / 256);
3270 ;
3271 if (order >= 4) {
3272 tcp_death_row.sysctl_max_tw_buckets = 180000;
3273 sysctl_tcp_max_orphans = 4096 << (order - 4);
3274 sysctl_max_syn_backlog = 1024;
3275 } else if (order < 3) {
3276 tcp_death_row.sysctl_max_tw_buckets >>= (3 - order);
3277 sysctl_tcp_max_orphans >>= (3 - order);
3278 sysctl_max_syn_backlog = 128;
3279 }
3280 3268
3281 /* Set the pressure threshold to be a fraction of global memory that 3269 /* Set the pressure threshold to be a fraction of global memory that
3282 * is up to 1/2 at 256 MB, decreasing toward zero with the amount of 3270 * is up to 1/2 at 256 MB, decreasing toward zero with the amount of
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 0ec9bd0ae94f..850c737e08e2 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -196,10 +196,10 @@ void tcp_get_allowed_congestion_control(char *buf, size_t maxlen)
196int tcp_set_allowed_congestion_control(char *val) 196int tcp_set_allowed_congestion_control(char *val)
197{ 197{
198 struct tcp_congestion_ops *ca; 198 struct tcp_congestion_ops *ca;
199 char *clone, *name; 199 char *saved_clone, *clone, *name;
200 int ret = 0; 200 int ret = 0;
201 201
202 clone = kstrdup(val, GFP_USER); 202 saved_clone = clone = kstrdup(val, GFP_USER);
203 if (!clone) 203 if (!clone)
204 return -ENOMEM; 204 return -ENOMEM;
205 205
@@ -226,6 +226,7 @@ int tcp_set_allowed_congestion_control(char *val)
226 } 226 }
227out: 227out:
228 spin_unlock(&tcp_cong_list_lock); 228 spin_unlock(&tcp_cong_list_lock);
229 kfree(saved_clone);
229 230
230 return ret; 231 return ret;
231} 232}
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 808bb920c9f5..c35b469e851c 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -66,18 +66,18 @@ static void tcp_write_err(struct sock *sk)
66static int tcp_out_of_resources(struct sock *sk, int do_reset) 66static int tcp_out_of_resources(struct sock *sk, int do_reset)
67{ 67{
68 struct tcp_sock *tp = tcp_sk(sk); 68 struct tcp_sock *tp = tcp_sk(sk);
69 int orphans = percpu_counter_read_positive(&tcp_orphan_count); 69 int shift = 0;
70 70
71 /* If peer does not open window for long time, or did not transmit 71 /* If peer does not open window for long time, or did not transmit
72 * anything for long time, penalize it. */ 72 * anything for long time, penalize it. */
73 if ((s32)(tcp_time_stamp - tp->lsndtime) > 2*TCP_RTO_MAX || !do_reset) 73 if ((s32)(tcp_time_stamp - tp->lsndtime) > 2*TCP_RTO_MAX || !do_reset)
74 orphans <<= 1; 74 shift++;
75 75
76 /* If some dubious ICMP arrived, penalize even more. */ 76 /* If some dubious ICMP arrived, penalize even more. */
77 if (sk->sk_err_soft) 77 if (sk->sk_err_soft)
78 orphans <<= 1; 78 shift++;
79 79
80 if (tcp_too_many_orphans(sk, orphans)) { 80 if (tcp_too_many_orphans(sk, shift)) {
81 if (net_ratelimit()) 81 if (net_ratelimit())
82 printk(KERN_INFO "Out of socket memory\n"); 82 printk(KERN_INFO "Out of socket memory\n");
83 83