leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

net: support 64bit values for setsockopt(SO_MAX_PACING_RATE)

Browse Source 
64bit kernels now support 64bit pacing rates.

This commit changes setsockopt() to accept 64bit
values provided by applications.

Old applications providing 32bit value are still supported,
but limited to the old 34Gbit limitation.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2019-02-28 15:17:27 -08:00 committed by David S. Miller
parent 255c1c7279
commit 6bdef102da
1 changed files with 13 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
net/core/sock.c
View File

@ -1108,15 +1108,23 @@ set_rcvbuf:
#endif
case SO_MAX_PACING_RATE:
if (val != ~0U)
{
unsigned long ulval = (val == ~0U) ? ~0UL : val;
if (sizeof(ulval) != sizeof(val) &&
optlen >= sizeof(ulval) &&
get_user(ulval, (unsigned long __user *)optval)) {
ret = -EFAULT;
break;
}
if (ulval != ~0UL)
cmpxchg(&sk->sk_pacing_status,
SK_PACING_NONE,
SK_PACING_NEEDED);
sk->sk_max_pacing_rate = (val == ~0U) ? ~0UL : val;
sk->sk_pacing_rate = min(sk->sk_pacing_rate,
sk->sk_max_pacing_rate);
sk->sk_max_pacing_rate = ulval;
sk->sk_pacing_rate = min(sk->sk_pacing_rate, ulval);
break;
}
case SO_INCOMING_CPU:
sk->sk_incoming_cpu = val;
break;