/* This used to ICE due to a backend problem on s390. */
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/* This used to ICE due to a backend problem on s390. */
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|
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/* { dg-do compile } */
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/* { dg-do compile } */
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/* { dg-options "-O1 -mpacked-stack" } */
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/* { dg-options "-O1 -mpacked-stack" } */
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|
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typedef unsigned int __u32;
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typedef unsigned int __u32;
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typedef struct
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typedef struct
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{
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{
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volatile int counter;
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volatile int counter;
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} __attribute__ ((aligned (4))) atomic_t;
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} __attribute__ ((aligned (4))) atomic_t;
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static __inline__ __attribute__ ((always_inline))
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static __inline__ __attribute__ ((always_inline))
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void atomic_inc (volatile atomic_t * v)
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void atomic_inc (volatile atomic_t * v)
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{
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{
|
(
|
(
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{
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{
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typeof (v->counter) old_val, new_val;
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typeof (v->counter) old_val, new_val;
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__asm__ __volatile__ (
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__asm__ __volatile__ (
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" l %0,0(%3)\n"
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" l %0,0(%3)\n"
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"0: lr %1,%0\n"
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"0: lr %1,%0\n"
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" ar %1,%4\n"
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" ar %1,%4\n"
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" cs %0,%1,0(%3)\n"
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" cs %0,%1,0(%3)\n"
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" jl 0b":
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" jl 0b":
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"=&d" (old_val), "=&d" (new_val), "=m" (((atomic_t *) (v))->counter):
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"=&d" (old_val), "=&d" (new_val), "=m" (((atomic_t *) (v))->counter):
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"a" (v), "d" (1), "m" (((atomic_t *) (v))->counter):
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"a" (v), "d" (1), "m" (((atomic_t *) (v))->counter):
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"cc", "memory");
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"cc", "memory");
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});
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});
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}
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}
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extern unsigned long volatile __attribute__ ((section (".data"))) jiffies;
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extern unsigned long volatile __attribute__ ((section (".data"))) jiffies;
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struct inet_peer
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struct inet_peer
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{
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{
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unsigned long dtime;
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unsigned long dtime;
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atomic_t refcnt;
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atomic_t refcnt;
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};
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};
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static volatile int peer_total;
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static volatile int peer_total;
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int inet_peer_threshold = 65536 + 128;
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int inet_peer_threshold = 65536 + 128;
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int inet_peer_minttl = 120 * 100;
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int inet_peer_minttl = 120 * 100;
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int inet_peer_maxttl = 10 * 60 * 100;
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int inet_peer_maxttl = 10 * 60 * 100;
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static int
|
static int
|
cleanup_once (unsigned long ttl)
|
cleanup_once (unsigned long ttl)
|
{
|
{
|
struct inet_peer *p;
|
struct inet_peer *p;
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if (p != ((void *) 0))
|
if (p != ((void *) 0))
|
{
|
{
|
if (((
|
if (((
|
{
|
{
|
1;}
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1;}
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) && ((long) (jiffies) - (long) (p->dtime + ttl) < 0)))
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) && ((long) (jiffies) - (long) (p->dtime + ttl) < 0)))
|
{
|
{
|
return -1;
|
return -1;
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}
|
}
|
atomic_inc (&p->refcnt);
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atomic_inc (&p->refcnt);
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}
|
}
|
}
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}
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struct inet_peer *
|
struct inet_peer *
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inet_getpeer (__u32 daddr, int create)
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inet_getpeer (__u32 daddr, int create)
|
{
|
{
|
int i;
|
int i;
|
int ttl;
|
int ttl;
|
if (peer_total >= inet_peer_threshold)
|
if (peer_total >= inet_peer_threshold)
|
ttl = inet_peer_minttl;
|
ttl = inet_peer_minttl;
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else
|
else
|
ttl =
|
ttl =
|
inet_peer_maxttl - (inet_peer_maxttl -
|
inet_peer_maxttl - (inet_peer_maxttl -
|
inet_peer_minttl) / 100 * peer_total /
|
inet_peer_minttl) / 100 * peer_total /
|
inet_peer_threshold * 100;
|
inet_peer_threshold * 100;
|
for (i = 0; i < 30 && !cleanup_once (ttl); i++);
|
for (i = 0; i < 30 && !cleanup_once (ttl); i++);
|
}
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}
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|
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