Dear all,
I try to modify inet_sendmsg() and inet_recvmsg().
To defer the time to notify a receiver, I use a timer for the problem.
But it causes "Scheduling in interrupt" error.
Is there any method to reform it?
Thank you for tour help
Scheduling in interrupt
invalid operand: 0000
CPU: 0
EIP: 0819:[<c0005d6f>] Not tainted
EFLAGS: 00010286
eax: 00000018 ebx: c19c2000 ecx: c0170894 edx: fbff9000
esi: c19c2000 edi: c1d42da0 ebp: c19c3cf4 esp: c19c3cd0
ds: 0821 es: 0821 ss: 0821
Process ftp (pid: 1312, stackpage=c19c3000)<1>
EX:
inet_sendmsg()
{
.
.
.
BYE:
if(sock->send_nonnotify_size>0&&0==sock->send_set_timer)
{
sock->send_notify_timer.function=notify_receiver;
sock->send_notify_timer.expires=MY_EXT_NOTIFY_TIME + jiffies;
sock->send_notify_timer.data=(unsigned long)(sock);
dbprintk("set notify timer, sock addr=%p\n",sock);
add_timer(&sock->send_notify_timer);
sock->send_set_timer=1;
}
release_sock(sock->sk);
}
static void notify_receiver(unsigned long data)
{
struct socket* sock=(struct socket*)data;
struct SHM_INFO shm_tmp;
if(!sock||!sock->sk)
return;
lock_sock(sock->sk);
sock->send_set_timer=0;
if(sock->send_nonnotify_size)
{
dbprintk("notify_receiver:notify
receivers,size=%d\n",sock->send_nonnotify_size);
sock->send_nonnotify_size=0;
shm_tmp.saddr=ntohl(sock->sk->saddr);
shm_tmp.sport=ntohl(sock->sk->sport);
shm_tmp.reqaddr=shm_tmp.saddr;
shm_tmp.reqport=shm_tmp.sport;
shm_tmp.daddr=ntohl(sock->sk->daddr);
shm_tmp.dport=ntohl(sock->sk->dport);
shm_tmp.maddr=NULL;
release_sock(sock->sk);
dbprintk("notift_recv: call send_data()......");
HYPERVISOR_send_data(&shm_tmp);
dbprintk("done\n");
return;
}
release_sock(sock->sk);
}
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