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| author | David Vrabel <david.vrabel@citrix.com> | 2015-04-24 14:56:40 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-08 12:37:18 +0200 |
| commit | e95e6f176c61dd0e7bd9fdfb4956df1f9bfe99d4 (patch) | |
| tree | b02e18f56aece0639cec468ad9439944a9319d6b /kernel/Kconfig.locks | |
| parent | bf0c7c34adc286bec3a5a38c00c773ba1b2d0396 (diff) | |
| download | lwn-e95e6f176c61dd0e7bd9fdfb4956df1f9bfe99d4.tar.gz lwn-e95e6f176c61dd0e7bd9fdfb4956df1f9bfe99d4.zip | |
locking/pvqspinlock, x86: Enable PV qspinlock for Xen
This patch adds the necessary Xen specific code to allow Xen to
support the CPU halting and kicking operations needed by the queue
spinlock PV code.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Daniel J Blueman <daniel@numascale.com>
Cc: Douglas Hatch <doug.hatch@hp.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paolo Bonzini <paolo.bonzini@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: virtualization@lists.linux-foundation.org
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/1429901803-29771-12-git-send-email-Waiman.Long@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/Kconfig.locks')
| -rw-r--r-- | kernel/Kconfig.locks | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks index 4379eef9334d..95dd7587ec34 100644 --- a/kernel/Kconfig.locks +++ b/kernel/Kconfig.locks @@ -240,7 +240,7 @@ config ARCH_USE_QUEUED_SPINLOCK config QUEUED_SPINLOCK def_bool y if ARCH_USE_QUEUED_SPINLOCK - depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN) + depends on SMP config ARCH_USE_QUEUE_RWLOCK bool |