linux-next: manual merge of the akpm tree with the nfs tree

[Stephen Rothwell]

Hi Andrew,

Today's linux-next merge of the akpm tree got a conflict in
net/sunrpc/xprtsock.c between commit 5cf02d09b50b ("nfs: skip commit in
releasepage if we're freeing memory for fs-related reasons") from the nfs
tree and commit "nfs: enable swap on NFS" from the akpm tree.

Just context changes?  I fixed it up (I think - see below) and can carry
the fix as necessary.
-- 
Cheers,
Stephen Rothwell                    s...@canb.auug.org.au

diff --cc net/sunrpc/xprtsock.c
index 9266794,83bb0eb..0000000
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@@ -1927,9 -1925,47 +1927,48 @@@ static void xs_local_setup_socket(struc
  out:
        xprt_clear_connecting(xprt);
        xprt_wake_pending_tasks(xprt, status);
 +      current->flags &= ~PF_FSTRANS;
  }
  
+ #ifdef CONFIG_SUNRPC_SWAP
+ static void xs_set_memalloc(struct rpc_xprt *xprt)
+ {
+       struct sock_xprt *transport = container_of(xprt, struct sock_xprt,
+                       xprt);
+ 
+       if (xprt->swapper)
+               sk_set_memalloc(transport->inet);
+ }
+ 
+ /**
+  * xs_swapper - Tag this transport as being used for swap.
+  * @xprt: transport to tag
+  * @enable: enable/disable
+  *
+  */
+ int xs_swapper(struct rpc_xprt *xprt, int enable)
+ {
+       struct sock_xprt *transport = container_of(xprt, struct sock_xprt,
+                       xprt);
+       int err = 0;
+ 
+       if (enable) {
+               xprt->swapper++;
+               xs_set_memalloc(xprt);
+       } else if (xprt->swapper) {
+               xprt->swapper--;
+               sk_clear_memalloc(transport->inet);
+       }
+ 
+       return err;
+ }
+ EXPORT_SYMBOL_GPL(xs_swapper);
+ #else
+ static void xs_set_memalloc(struct rpc_xprt *xprt)
+ {
+ }
+ #endif
+ 
  static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket 
*sock)
  {
        struct sock_xprt *transport = container_of(xprt, struct sock_xprt, 
xprt);
@@@ -1970,7 -2009,8 +2012,9 @@@ static void xs_udp_setup_socket(struct 
        if (xprt->shutdown)
                goto out;
  
 +      current->flags |= PF_FSTRANS;
+       if (xprt->swapper)
+               current->flags |= PF_MEMALLOC;
  
        /* Start by resetting any existing state */
        xs_reset_transport(transport);
@@@ -1990,7 -2030,7 +2034,8 @@@
  out:
        xprt_clear_connecting(xprt);
        xprt_wake_pending_tasks(xprt, status);
+       tsk_restore_flags(current, pflags, PF_MEMALLOC);
 +      current->flags &= ~PF_FSTRANS;
  }
  
  /*
@@@ -2116,7 -2159,8 +2164,9 @@@ static void xs_tcp_setup_socket(struct 
        if (xprt->shutdown)
                goto out;
  
 +      current->flags |= PF_FSTRANS;
+       if (xprt->swapper)
+               current->flags |= PF_MEMALLOC;
  
        if (!sock) {
                clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
@@@ -2167,7 -2211,7 +2217,8 @@@
        case -EINPROGRESS:
        case -EALREADY:
                xprt_clear_connecting(xprt);
+               tsk_restore_flags(current, pflags, PF_MEMALLOC);
 +              current->flags &= ~PF_FSTRANS;
                return;
        case -EINVAL:
                /* Happens, for instance, if the user specified a link
@@@ -2180,7 -2224,7 +2231,8 @@@ out_eagain
  out:
        xprt_clear_connecting(xprt);
        xprt_wake_pending_tasks(xprt, status);
+       tsk_restore_flags(current, pflags, PF_MEMALLOC);
 +      current->flags &= ~PF_FSTRANS;
  }
  
  /**

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