linux-kernel - [KVM PATCH v2 0/2] irqfd: use POLLHUP notification for close()

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Date:	Thu, 04 Jun 2009 08:48:02 -0400
From:	Gregory Haskins <ghaskins@...ell.com>
To:	kvm@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, avi@...hat.com,
	davdel@...ilserver.org, mst@...hat.com, paulmck@...ux.vnet.ibm.com,
	akpm@...ux-foundation.org
Subject: [KVM PATCH v2 0/2] irqfd: use POLLHUP notification for close()

(Applies to kvm.git/master:25deed73)

Please see the header for 2/2 for a description.  This patch series has been
fully tested and appears to be working correctly.

[Review notes:
      *) Paul has looked at the SRCU design and, to my knowledge, didn't find
         any holes.
      *) Michael, Avi, and myself agree that while the removal of the DEASSIGN
         vector is not desirable, the fix on close() is more important in
         the short-term.  We can always add DEASSIGN support again in the
	 future with a CAP bit.
]

[Changelog:

      v2:
         *) Pulled in Davide's official patch for 1/2 from his submission
            accepted into -mmotm.
         *) Fixed patch 2/2 to use the "key" field as a bitmap in the wakeup
            logic, per Davide's feedback.

      v1:
         *) Initial release
]
  

---

Davide Libenzi (1):
      Allow waiters to be notified about the eventfd file* going away, and give

Gregory Haskins (1):
      kvm: use POLLHUP to close an irqfd instead of an explicit ioctl


 fs/eventfd.c        |   10 +++
 include/linux/kvm.h |    2 -
 virt/kvm/eventfd.c  |  177 +++++++++++++++++++++++----------------------------
 virt/kvm/kvm_main.c |    3 +
 4 files changed, 90 insertions(+), 102 deletions(-)

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