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From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: david.vrabel@citrix.com, konrad.wilk@oracle.com, tglx@linutronix.de
Cc: xen-devel@lists.xenproject.org,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/2] Reinstate irq alloc/dealloc locking patch
Date: Thu, 17 Mar 2016 09:33:31 -0400	[thread overview]
Message-ID: <1458221613-21563-1-git-send-email-boris.ostrovsky__47919.6618347943$1458221835$gmane$org@oracle.com> (raw)

Original version of that patch (commit a89941816726) had to be reverted
due to Xen allocating irqs in its cpu_up ops.

The first patch moves allocations into hotplug notifiers and the second
one restores the original patch (with minor adjustments to new hotplug

Boris Ostrovsky (2):
  xen/x86: Move irq allocation from Xen smp_op.cpu_up()
  hotplug: Prevent alloc/free of irq descriptors during cpu up/down

 arch/x86/kernel/smpboot.c |   11 ---------
 arch/x86/xen/enlighten.c  |   53 +++++++++++++++++++++++++++++++++++++-------
 arch/x86/xen/smp.c        |   45 +------------------------------------
 arch/x86/xen/smp.h        |    3 ++
 kernel/cpu.c              |    8 ++++++
 5 files changed, 57 insertions(+), 63 deletions(-)

Xen-devel mailing list

             reply	other threads:[~2016-03-17 13:35 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-17 13:33 Boris Ostrovsky [this message]
     [not found] <1458221613-21563-1-git-send-email-boris.ostrovsky@oracle.com>
2016-04-22 14:35 ` Boris Ostrovsky

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