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authorEric Dumazet <eric.dumazet@gmail.com>2010-11-09 18:24:26 -0500
committerDavid S. Miller <davem@davemloft.net>2010-11-10 15:12:00 -0500
commit8d987e5c75107ca7515fa19e857cfa24aab6ec8f (patch)
tree6392c5f08f0df39d42a079336f6be3960ac404dc /net/ipv4/udp.c
parent67286640f638f5ad41a946b9a3dc75327950248f (diff)
net: avoid limits overflow
Robin Holt tried to boot a 16TB machine and found some limits were reached : sysctl_tcp_mem[2], sysctl_udp_mem[2] We can switch infrastructure to use long "instead" of "int", now atomic_long_t primitives are available for free. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Reported-by: Robin Holt <holt@sgi.com> Reviewed-by: Robin Holt <holt@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
-rw-r--r--net/ipv4/udp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 28cb2d733a3c..5e0a3a582a59 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -110,7 +110,7 @@
110struct udp_table udp_table __read_mostly; 110struct udp_table udp_table __read_mostly;
111EXPORT_SYMBOL(udp_table); 111EXPORT_SYMBOL(udp_table);
112 112
113int sysctl_udp_mem[3] __read_mostly; 113long sysctl_udp_mem[3] __read_mostly;
114EXPORT_SYMBOL(sysctl_udp_mem); 114EXPORT_SYMBOL(sysctl_udp_mem);
115 115
116int sysctl_udp_rmem_min __read_mostly; 116int sysctl_udp_rmem_min __read_mostly;
@@ -119,7 +119,7 @@ EXPORT_SYMBOL(sysctl_udp_rmem_min);
119int sysctl_udp_wmem_min __read_mostly; 119int sysctl_udp_wmem_min __read_mostly;
120EXPORT_SYMBOL(sysctl_udp_wmem_min); 120EXPORT_SYMBOL(sysctl_udp_wmem_min);
121 121
122atomic_t udp_memory_allocated; 122atomic_long_t udp_memory_allocated;
123EXPORT_SYMBOL(udp_memory_allocated); 123EXPORT_SYMBOL(udp_memory_allocated);
124 124
125#define MAX_UDP_PORTS 65536 125#define MAX_UDP_PORTS 65536