Messages in this thread | | | Date | Thu, 16 Aug 2007 10:00:42 +0800 | From | Herbert Xu <> | Subject | Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures |
| |
On Thu, Aug 16, 2007 at 11:51:42AM +1000, Paul Mackerras wrote: > > Name one such case.
See sk_stream_mem_schedule in net/core/stream.c:
/* Under limit. */ if (atomic_read(sk->sk_prot->memory_allocated) < sk->sk_prot->sysctl_mem[0]) { if (*sk->sk_prot->memory_pressure) *sk->sk_prot->memory_pressure = 0; return 1; }
/* Over hard limit. */ if (atomic_read(sk->sk_prot->memory_allocated) > sk->sk_prot->sysctl_mem[2]) { sk->sk_prot->enter_memory_pressure(); goto suppress_allocation; }
We don't need to reload sk->sk_prot->memory_allocated here.
Now where is your example again?
Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |