linux-kernel - [RFC PATCH 0/2] Fix up the NFS mmap code

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Message-ID: <20100109005624.7473.33215.stgit@localhost.localdomain>
Date:	Fri, 08 Jan 2010 19:56:24 -0500
From:	Trond Myklebust <Trond.Myklebust@...app.com>
To:	Andi Kleen <andi@...stfloor.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org
Subject: [RFC PATCH 0/2] Fix up the NFS mmap code

How about something like the following. I chose to wrap the call to
do_mmap_pgoff() instead of making a special ->pre_mmap(), since that
seems more consistent with the way we handle ->read() and ->write().

I also left sys_uselib() and do_execve() to rely on revalidate at
open(), since executables and libraries really are not ever expected to
change while open.

Cheers
  Trond

---

Trond Myklebust (2):
      NFS: Fix a potential deadlock in nfs_file_mmap()
      VFS: Add a mmap_file() callback to struct file_operations


 fs/nfs/file.c      |   28 ++++++++++++++++++++++------
 fs/nfs/inode.c     |    4 ++++
 include/linux/fs.h |    5 +++++
 mm/filemap.c       |   23 +++++++++++++++++++++++
 mm/mmap.c          |   11 ++++++++---
 mm/nommu.c         |   11 ++++++++---
 6 files changed, 70 insertions(+), 12 deletions(-)

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