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authorChristoph Lameter <cl@linux.com>2011-12-22 11:58:51 -0600
committerTejun Heo <tj@kernel.org>2011-12-22 10:40:20 -0800
commit933393f58fef9963eac61db8093689544e29a600 (patch)
tree719f8b231499aa4ea023bc1a06db4582df5f0965 /arch/x86/include/asm/percpu.h
parentecefc36b41ac0fe92d76273a23faf27b2da13411 (diff)
downloadop-kernel-dev-933393f58fef9963eac61db8093689544e29a600.zip
op-kernel-dev-933393f58fef9963eac61db8093689544e29a600.tar.gz
percpu: Remove irqsafe_cpu_xxx variants
We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. -tj: This is part of on-going percpu API cleanup. For detailed discussion of the subject, please refer to the following thread. http://thread.gmane.org/gmane.linux.kernel/1222078 Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org> LKML-Reference: <alpine.DEB.2.00.1112221154380.11787@router.home>
Diffstat (limited to 'arch/x86/include/asm/percpu.h')
-rw-r--r--arch/x86/include/asm/percpu.h28
1 files changed, 0 insertions, 28 deletions
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 3470c9d..562ccb5 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -414,22 +414,6 @@ do { \
#define this_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval)
#define this_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_add_1(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_add_2(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_add_4(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_and_1(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_and_2(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_and_4(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_or_1(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_or_2(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_or_4(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_xor_1(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xchg_1(pcp, nval) percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval)
-
#ifndef CONFIG_M386
#define __this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val)
#define __this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val)
@@ -445,9 +429,6 @@ do { \
#define this_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
#define this_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
#endif /* !CONFIG_M386 */
#ifdef CONFIG_X86_CMPXCHG64
@@ -467,7 +448,6 @@ do { \
#define __this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2)
#define this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2)
-#define irqsafe_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2)
#endif /* CONFIG_X86_CMPXCHG64 */
/*
@@ -495,13 +475,6 @@ do { \
#define this_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval)
#define this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_add_8(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_and_8(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-
/*
* Pretty complex macro to generate cmpxchg16 instruction. The instruction
* is not supported on early AMD64 processors so we must be able to emulate
@@ -532,7 +505,6 @@ do { \
#define __this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2)
#define this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2)
-#define irqsafe_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2)
#endif
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