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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-08-26 20:28:50 +0200 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-09-09 18:06:45 +0200 |
| commit | fb78e58c275599a961557bca201dd897565833ca (patch) | |
| tree | 35c350aae49d3dfec694cd2c28f565b95bcfad77 /arch | |
| parent | xen/spinlock: Don't setup xen spinlock IPI kicker if disabled. (diff) | |
| download | linux-fb78e58c275599a961557bca201dd897565833ca.tar.xz linux-fb78e58c275599a961557bca201dd897565833ca.zip | |
Revert "xen/spinlock: Disable IRQ spinlock (PV) allocation on PVHVM"
This reverts commit 70dd4998cb85f0ecd6ac892cc7232abefa432efb.
Now that the bugs have been resolved we can re-enable the
PV ticketlock implementation under PVHVM Xen guests.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/spinlock.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c index e1bff87766be..b3c1ee8f0993 100644 --- a/arch/x86/xen/spinlock.c +++ b/arch/x86/xen/spinlock.c @@ -230,13 +230,6 @@ void xen_init_lock_cpu(int cpu) WARN(per_cpu(lock_kicker_irq, cpu) >= 0, "spinlock on CPU%d exists on IRQ%d!\n", cpu, per_cpu(lock_kicker_irq, cpu)); - /* - * See git commit f10cd522c5fbfec9ae3cc01967868c9c2401ed23 - * (xen: disable PV spinlocks on HVM) - */ - if (xen_hvm_domain()) - return; - name = kasprintf(GFP_KERNEL, "spinlock%d", cpu); irq = bind_ipi_to_irqhandler(XEN_SPIN_UNLOCK_VECTOR, cpu, @@ -256,13 +249,6 @@ void xen_init_lock_cpu(int cpu) void xen_uninit_lock_cpu(int cpu) { - /* - * See git commit f10cd522c5fbfec9ae3cc01967868c9c2401ed23 - * (xen: disable PV spinlocks on HVM) - */ - if (xen_hvm_domain()) - return; - if (!xen_pvspin) return; @@ -275,12 +261,6 @@ void xen_uninit_lock_cpu(int cpu) void __init xen_init_spinlocks(void) { - /* - * See git commit f10cd522c5fbfec9ae3cc01967868c9c2401ed23 - * (xen: disable PV spinlocks on HVM) - */ - if (xen_hvm_domain()) - return; if (!xen_pvspin) { printk(KERN_DEBUG "xen: PV spinlocks disabled\n"); |