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-rw-r--r--arch/x86/kernel/Makefile4
-rw-r--r--arch/x86/kernel/paravirt-spinlocks.c31
-rw-r--r--arch/x86/kernel/paravirt.c23
3 files changed, 33 insertions, 25 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 3db651fc8ec5..d679cb2c79b4 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -10,7 +10,7 @@ ifdef CONFIG_FTRACE
10# Do not profile debug and lowlevel utilities 10# Do not profile debug and lowlevel utilities
11CFLAGS_REMOVE_tsc.o = -pg 11CFLAGS_REMOVE_tsc.o = -pg
12CFLAGS_REMOVE_rtc.o = -pg 12CFLAGS_REMOVE_rtc.o = -pg
13CFLAGS_REMOVE_paravirt.o = -pg 13CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
14endif 14endif
15 15
16# 16#
@@ -89,7 +89,7 @@ obj-$(CONFIG_DEBUG_NX_TEST) += test_nx.o
89obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o 89obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o
90obj-$(CONFIG_KVM_GUEST) += kvm.o 90obj-$(CONFIG_KVM_GUEST) += kvm.o
91obj-$(CONFIG_KVM_CLOCK) += kvmclock.o 91obj-$(CONFIG_KVM_CLOCK) += kvmclock.o
92obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o 92obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o paravirt-spinlocks.o
93obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o 93obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
94 94
95obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o 95obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
new file mode 100644
index 000000000000..38d7f7f1dbc9
--- /dev/null
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -0,0 +1,31 @@
1/*
2 * Split spinlock implementation out into its own file, so it can be
3 * compiled in a FTRACE-compatible way.
4 */
5#include <linux/spinlock.h>
6#include <linux/module.h>
7
8#include <asm/paravirt.h>
9
10struct pv_lock_ops pv_lock_ops = {
11#ifdef CONFIG_SMP
12 .spin_is_locked = __ticket_spin_is_locked,
13 .spin_is_contended = __ticket_spin_is_contended,
14
15 .spin_lock = __ticket_spin_lock,
16 .spin_trylock = __ticket_spin_trylock,
17 .spin_unlock = __ticket_spin_unlock,
18#endif
19};
20EXPORT_SYMBOL_GPL(pv_lock_ops);
21
22void __init paravirt_use_bytelocks(void)
23{
24#ifdef CONFIG_SMP
25 pv_lock_ops.spin_is_locked = __byte_spin_is_locked;
26 pv_lock_ops.spin_is_contended = __byte_spin_is_contended;
27 pv_lock_ops.spin_lock = __byte_spin_lock;
28 pv_lock_ops.spin_trylock = __byte_spin_trylock;
29 pv_lock_ops.spin_unlock = __byte_spin_unlock;
30#endif
31}
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index d8f2277be5a0..7faea1817d05 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -268,17 +268,6 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
268 return __get_cpu_var(paravirt_lazy_mode); 268 return __get_cpu_var(paravirt_lazy_mode);
269} 269}
270 270
271void __init paravirt_use_bytelocks(void)
272{
273#ifdef CONFIG_SMP
274 pv_lock_ops.spin_is_locked = __byte_spin_is_locked;
275 pv_lock_ops.spin_is_contended = __byte_spin_is_contended;
276 pv_lock_ops.spin_lock = __byte_spin_lock;
277 pv_lock_ops.spin_trylock = __byte_spin_trylock;
278 pv_lock_ops.spin_unlock = __byte_spin_unlock;
279#endif
280}
281
282struct pv_info pv_info = { 271struct pv_info pv_info = {
283 .name = "bare hardware", 272 .name = "bare hardware",
284 .paravirt_enabled = 0, 273 .paravirt_enabled = 0,
@@ -465,18 +454,6 @@ struct pv_mmu_ops pv_mmu_ops = {
465 .set_fixmap = native_set_fixmap, 454 .set_fixmap = native_set_fixmap,
466}; 455};
467 456
468struct pv_lock_ops pv_lock_ops = {
469#ifdef CONFIG_SMP
470 .spin_is_locked = __ticket_spin_is_locked,
471 .spin_is_contended = __ticket_spin_is_contended,
472
473 .spin_lock = __ticket_spin_lock,
474 .spin_trylock = __ticket_spin_trylock,
475 .spin_unlock = __ticket_spin_unlock,
476#endif
477};
478EXPORT_SYMBOL_GPL(pv_lock_ops);
479
480EXPORT_SYMBOL_GPL(pv_time_ops); 457EXPORT_SYMBOL_GPL(pv_time_ops);
481EXPORT_SYMBOL (pv_cpu_ops); 458EXPORT_SYMBOL (pv_cpu_ops);
482EXPORT_SYMBOL (pv_mmu_ops); 459EXPORT_SYMBOL (pv_mmu_ops);