linux-kernel - linux-next: manual merge of the xen-tip tree with Linus' tree

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Date:   Fri, 16 Feb 2018 12:04:32 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Juergen Gross <jgross@...e.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Xen Devel <Xen-devel@...ts.xensource.com>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Al Viro <viro@...iv.linux.org.uk>
Subject: linux-next: manual merge of the xen-tip tree with Linus' tree

Hi all,

Today's linux-next merge of the xen-tip tree got a conflict in:

  drivers/xen/pvcalls-front.c

between commit:

  a9a08845e9ac ("vfs: do bulk POLL* -> EPOLL* replacement")

from Linus' tree and commit:

  1e7dbff356e5 ("pvcalls-front: introduce a per sock_mapping refcount")

from the xen-tip tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/xen/pvcalls-front.c
index 753d9cb437d0,ca5b77309c7d..000000000000
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@@ -963,20 -942,13 +942,13 @@@ __poll_t pvcalls_front_poll(struct fil
  {
  	struct pvcalls_bedata *bedata;
  	struct sock_mapping *map;
 -	int ret;
 +	__poll_t ret;
  
- 	pvcalls_enter();
- 	if (!pvcalls_front_dev) {
- 		pvcalls_exit();
+ 	map = pvcalls_enter_sock(sock);
+ 	if (IS_ERR(map))
 -		return POLLNVAL;
 +		return EPOLLNVAL;
- 	}
  	bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
  
- 	map = (struct sock_mapping *) sock->sk->sk_send_head;
- 	if (!map) {
- 		pvcalls_exit();
- 		return EPOLLNVAL;
- 	}
  	if (map->active_socket)
  		ret = pvcalls_front_poll_active(file, bedata, map, wait);
  	else

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