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| author | Christoph Lameter <cl@linux.com> | 2011-12-22 11:58:51 -0600 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-12-22 10:40:20 -0800 |
| commit | 933393f58fef9963eac61db8093689544e29a600 (patch) | |
| tree | 719f8b231499aa4ea023bc1a06db4582df5f0965 /arch/s390 | |
| parent | ecefc36b41ac0fe92d76273a23faf27b2da13411 (diff) | |
| download | linux-3.10-933393f58fef9963eac61db8093689544e29a600.tar.gz linux-3.10-933393f58fef9963eac61db8093689544e29a600.tar.bz2 linux-3.10-933393f58fef9963eac61db8093689544e29a600.zip | |
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/s390')
| -rw-r--r-- | arch/s390/include/asm/percpu.h | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h index 5325c89a584..0fbd1899c7b 100644 --- a/arch/s390/include/asm/percpu.h +++ b/arch/s390/include/asm/percpu.h @@ -19,7 +19,7 @@ #define ARCH_NEEDS_WEAK_PER_CPU #endif -#define arch_irqsafe_cpu_to_op(pcp, val, op) \ +#define arch_this_cpu_to_op(pcp, val, op) \ do { \ typedef typeof(pcp) pcp_op_T__; \ pcp_op_T__ old__, new__, prev__; \ @@ -41,27 +41,27 @@ do { \ preempt_enable(); \ } while (0) -#define irqsafe_cpu_add_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_add_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_add_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_add_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +) +#define this_cpu_add_1(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_2(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_4(pcp, val) arch_this_cpu_to_op(pcp, val, +) +#define this_cpu_add_8(pcp, val) arch_this_cpu_to_op(pcp, val, +) -#define irqsafe_cpu_and_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_and_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_and_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_and_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &) +#define this_cpu_and_1(pcp, val) arch_this_cpu_to_op(pcp, val, &) +#define this_cpu_and_2(pcp, val) arch_this_cpu_to_op(pcp, val, &) +#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, &) +#define this_cpu_and_8(pcp, val) arch_this_cpu_to_op(pcp, val, &) -#define irqsafe_cpu_or_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_or_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_or_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_or_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |) +#define this_cpu_or_1(pcp, val) arch_this_cpu_to_op(pcp, val, |) +#define this_cpu_or_2(pcp, val) arch_this_cpu_to_op(pcp, val, |) +#define this_cpu_or_4(pcp, val) arch_this_cpu_to_op(pcp, val, |) +#define this_cpu_or_8(pcp, val) arch_this_cpu_to_op(pcp, val, |) -#define irqsafe_cpu_xor_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) -#define irqsafe_cpu_xor_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) -#define irqsafe_cpu_xor_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) -#define irqsafe_cpu_xor_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_1(pcp, val) arch_this_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_2(pcp, val) arch_this_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_4(pcp, val) arch_this_cpu_to_op(pcp, val, ^) +#define this_cpu_xor_8(pcp, val) arch_this_cpu_to_op(pcp, val, ^) -#define arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) \ +#define arch_this_cpu_cmpxchg(pcp, oval, nval) \ ({ \ typedef typeof(pcp) pcp_op_T__; \ pcp_op_T__ ret__; \ @@ -79,10 +79,10 @@ do { \ ret__; \ }) -#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_1(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_2(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_4(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) +#define this_cpu_cmpxchg_8(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval) #include <asm-generic/percpu.h> |