diff options
| author | Will Deacon <will.deacon@arm.com> | 2018-02-27 13:48:31 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-03-27 15:15:29 +0300 |
| commit | c9406e514b95e825af20967430786a234d2dcabd (patch) | |
| tree | e0ca1dc1470d269a0975e8b14b0e9a6ff947c3a9 /arch/arm64/include/asm/cmpxchg.h | |
| parent | e8a2d040fee54606ff62cc1f22e14ad9b2677f15 (diff) | |
| download | linux-c9406e514b95e825af20967430786a234d2dcabd.tar.xz | |
arm64: move percpu cmpxchg implementation from cmpxchg.h to percpu.h
We want to avoid pulling linux/preempt.h into cmpxchg.h, since that can
introduce a circular dependency on linux/bitops.h. linux/preempt.h is
only needed by the per-cpu cmpxchg implementation, which is better off
alongside the per-cpu xchg implementation in percpu.h, so move it there
and add the missing #include.
Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/cmpxchg.h')
| -rw-r--r-- | arch/arm64/include/asm/cmpxchg.h | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h index bc9e07bc6428..19d4a18c2ac8 100644 --- a/arch/arm64/include/asm/cmpxchg.h +++ b/arch/arm64/include/asm/cmpxchg.h @@ -196,32 +196,6 @@ __CMPXCHG_GEN(_mb) __ret; \ }) -/* this_cpu_cmpxchg */ -#define _protect_cmpxchg_local(pcp, o, n) \ -({ \ - typeof(*raw_cpu_ptr(&(pcp))) __ret; \ - preempt_disable(); \ - __ret = cmpxchg_local(raw_cpu_ptr(&(pcp)), o, n); \ - preempt_enable(); \ - __ret; \ -}) - -#define this_cpu_cmpxchg_1(ptr, o, n) _protect_cmpxchg_local(ptr, o, n) -#define this_cpu_cmpxchg_2(ptr, o, n) _protect_cmpxchg_local(ptr, o, n) -#define this_cpu_cmpxchg_4(ptr, o, n) _protect_cmpxchg_local(ptr, o, n) -#define this_cpu_cmpxchg_8(ptr, o, n) _protect_cmpxchg_local(ptr, o, n) - -#define this_cpu_cmpxchg_double_8(ptr1, ptr2, o1, o2, n1, n2) \ -({ \ - int __ret; \ - preempt_disable(); \ - __ret = cmpxchg_double_local( raw_cpu_ptr(&(ptr1)), \ - raw_cpu_ptr(&(ptr2)), \ - o1, o2, n1, n2); \ - preempt_enable(); \ - __ret; \ -}) - #define __CMPWAIT_CASE(w, sz, name) \ static inline void __cmpwait_case_##name(volatile void *ptr, \ unsigned long val) \ |