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net: avoid limits overflow

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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>
This commit is contained in:
Eric Dumazet 2010-11-09 23:24:26 +00:00 • committed by David S. Miller
parent 67286640f6
commit 8d987e5c75
15 changed files with 40 additions and 38 deletions
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4
net/sctp/sysctl.c
View file

@ -54,7 +54,7 @@ static int sack_timer_max = 500;
static int addr_scope_max = 3; /* check sctp_scope_policy_t in include/net/sctp/constants.h for max entries */
static int rwnd_scale_max = 16;
extern int sysctl_sctp_mem[3];
extern long sysctl_sctp_mem[3];
extern int sysctl_sctp_rmem[3];
extern int sysctl_sctp_wmem[3];
@ -203,7 +203,7 @@ static ctl_table sctp_table[] = {
.data = &sysctl_sctp_mem,
.maxlen = sizeof(sysctl_sctp_mem),
.mode = 0644,
.proc_handler = proc_dointvec,
.proc_handler = proc_doulongvec_minmax
},
{
.procname = "sctp_rmem",