[087/107] SUNRPC: Ensure the RPC client only quits on fatal signals

From: Greg KH
Date: Fri Jul 08 2011 - 01:09:43 EST


2.6.39-stable review patch. If anyone has any objections, please let us know.

------------------

From: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>

commit 5afa9133cfe67f1bfead6049a9640c9262a7101c upstream.

Fix a couple of instances where we were exiting the RPC client on
arbitrary signals. We should only do so on fatal signals.

Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
net/sunrpc/auth_gss/auth_gss.c | 4 ++--
net/sunrpc/clnt.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)

--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -577,13 +577,13 @@ retry:
}
inode = &gss_msg->inode->vfs_inode;
for (;;) {
- prepare_to_wait(&gss_msg->waitqueue, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_wait(&gss_msg->waitqueue, &wait, TASK_KILLABLE);
spin_lock(&inode->i_lock);
if (gss_msg->ctx != NULL || gss_msg->msg.errno < 0) {
break;
}
spin_unlock(&inode->i_lock);
- if (signalled()) {
+ if (fatal_signal_pending(current)) {
err = -ERESTARTSYS;
goto out_intr;
}
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1058,7 +1058,7 @@ call_allocate(struct rpc_task *task)

dprintk("RPC: %5u rpc_buffer allocation failed\n", task->tk_pid);

- if (RPC_IS_ASYNC(task) || !signalled()) {
+ if (RPC_IS_ASYNC(task) || !fatal_signal_pending(current)) {
task->tk_action = call_allocate;
rpc_delay(task, HZ>>4);
return;


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/