Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [AF_RXRPC]: Return the number of bytes buffered in rxrpc_send_data()
  [IPVS]: Fix state variable on failure to start ipvs threads
  [XFRM]: Fix MTU calculation for non-ESP SAs
This commit is contained in:
Linus Torvalds 2007-06-22 11:10:05 -07:00
commit e2f90a9141
3 changed files with 44 additions and 4 deletions

View file

@ -67,6 +67,11 @@ struct ip_vs_sync_conn_options {
struct ip_vs_seq out_seq; /* outgoing seq. struct */
};
struct ip_vs_sync_thread_data {
struct completion *startup;
int state;
};
#define IP_VS_SYNC_CONN_TIMEOUT (3*60*HZ)
#define SIMPLE_CONN_SIZE (sizeof(struct ip_vs_sync_conn))
#define FULL_CONN_SIZE \
@ -751,6 +756,7 @@ static int sync_thread(void *startup)
mm_segment_t oldmm;
int state;
const char *name;
struct ip_vs_sync_thread_data *tinfo = startup;
/* increase the module use count */
ip_vs_use_count_inc();
@ -789,7 +795,14 @@ static int sync_thread(void *startup)
add_wait_queue(&sync_wait, &wait);
set_sync_pid(state, current->pid);
complete((struct completion *)startup);
complete(tinfo->startup);
/*
* once we call the completion queue above, we should
* null out that reference, since its allocated on the
* stack of the creating kernel thread
*/
tinfo->startup = NULL;
/* processing master/backup loop here */
if (state == IP_VS_STATE_MASTER)
@ -801,6 +814,14 @@ static int sync_thread(void *startup)
remove_wait_queue(&sync_wait, &wait);
/* thread exits */
/*
* If we weren't explicitly stopped, then we
* exited in error, and should undo our state
*/
if ((!stop_master_sync) && (!stop_backup_sync))
ip_vs_sync_state -= tinfo->state;
set_sync_pid(state, 0);
IP_VS_INFO("sync thread stopped!\n");
@ -812,6 +833,11 @@ static int sync_thread(void *startup)
set_stop_sync(state, 0);
wake_up(&stop_sync_wait);
/*
* we need to free the structure that was allocated
* for us in start_sync_thread
*/
kfree(tinfo);
return 0;
}
@ -838,11 +864,19 @@ int start_sync_thread(int state, char *mcast_ifn, __u8 syncid)
{
DECLARE_COMPLETION_ONSTACK(startup);
pid_t pid;
struct ip_vs_sync_thread_data *tinfo;
if ((state == IP_VS_STATE_MASTER && sync_master_pid) ||
(state == IP_VS_STATE_BACKUP && sync_backup_pid))
return -EEXIST;
/*
* Note that tinfo will be freed in sync_thread on exit
*/
tinfo = kmalloc(sizeof(struct ip_vs_sync_thread_data), GFP_KERNEL);
if (!tinfo)
return -ENOMEM;
IP_VS_DBG(7, "%s: pid %d\n", __FUNCTION__, current->pid);
IP_VS_DBG(7, "Each ip_vs_sync_conn entry need %Zd bytes\n",
sizeof(struct ip_vs_sync_conn));
@ -858,8 +892,11 @@ int start_sync_thread(int state, char *mcast_ifn, __u8 syncid)
ip_vs_backup_syncid = syncid;
}
tinfo->state = state;
tinfo->startup = &startup;
repeat:
if ((pid = kernel_thread(fork_sync_thread, &startup, 0)) < 0) {
if ((pid = kernel_thread(fork_sync_thread, tinfo, 0)) < 0) {
IP_VS_ERR("could not create fork_sync_thread due to %d... "
"retrying.\n", pid);
msleep_interruptible(1000);

View file

@ -640,6 +640,7 @@ static int rxrpc_send_data(struct kiocb *iocb,
goto efault;
sp->remain -= copy;
skb->mark += copy;
copied += copy;
len -= copy;
segment -= copy;
@ -709,6 +710,8 @@ static int rxrpc_send_data(struct kiocb *iocb,
} while (segment > 0);
success:
ret = copied;
out:
call->tx_pending = skb;
_leave(" = %d", ret);
@ -725,7 +728,7 @@ static int rxrpc_send_data(struct kiocb *iocb,
maybe_error:
if (copied)
ret = copied;
goto success;
goto out;
efault:

View file

@ -1729,7 +1729,7 @@ int xfrm_state_mtu(struct xfrm_state *x, int mtu)
x->type && x->type->get_mtu)
res = x->type->get_mtu(x, mtu);
else
res = mtu;
res = mtu - x->props.header_len;
spin_unlock_bh(&x->lock);
return res;
}