diff options
author | Will Deacon <will.deacon@arm.com> | 2017-10-03 19:25:29 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2017-10-10 11:50:19 +0200 |
commit | a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299 (patch) | |
tree | 4b0f4364502ec0e8f790ebbe61fa3f4b019a667c /arch | |
parent | 0160fb177d484367e041ac251fca591a3e49660c (diff) | |
download | linux-stable-a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299.tar.gz linux-stable-a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299.tar.bz2 linux-stable-a4c1887d4c1462b0ec5a8989f8ba3cdd9057a299.zip |
locking/arch: Remove dummy arch_{read,spin,write}_lock_flags() implementations
The arch_{read,spin,write}_lock_flags() macros are simply mapped to the
non-flags versions by the majority of architectures, so do this in core
code and remove the dummy implementations. Also remove the implementation
in spinlock_up.h, since all callers of do_raw_spin_lock_flags() call
local_irq_save(flags) anyway.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: paulmck@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1507055129-12300-4-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
23 files changed, 7 insertions, 93 deletions
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h index 7bff6316b8bb..3e2b4a05cb0f 100644 --- a/arch/alpha/include/asm/spinlock.h +++ b/arch/alpha/include/asm/spinlock.h @@ -13,7 +13,6 @@ * We make no fairness assumptions. They have a cost. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) #define arch_spin_is_locked(x) ((x)->lock != 0) static inline int arch_spin_value_unlocked(arch_spinlock_t lock) @@ -160,7 +159,4 @@ static inline void arch_write_unlock(arch_rwlock_t * lock) lock->lock = 0; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* _ALPHA_SPINLOCK_H */ diff --git a/arch/arc/include/asm/spinlock.h b/arch/arc/include/asm/spinlock.h index f85bb585cdfc..2ba04a7db621 100644 --- a/arch/arc/include/asm/spinlock.h +++ b/arch/arc/include/asm/spinlock.h @@ -14,7 +14,6 @@ #include <asm/barrier.h> #define arch_spin_is_locked(x) ((x)->slock != __ARCH_SPIN_LOCK_UNLOCKED__) -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) #ifdef CONFIG_ARC_HAS_LLSC @@ -410,7 +409,4 @@ static inline void arch_write_unlock(arch_rwlock_t *rw) #endif -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* __ASM_SPINLOCK_H */ diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h index d40a28fcbc62..daa87212c9a1 100644 --- a/arch/arm/include/asm/spinlock.h +++ b/arch/arm/include/asm/spinlock.h @@ -52,8 +52,6 @@ static inline void dsb_sev(void) * memory. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - static inline void arch_spin_lock(arch_spinlock_t *lock) { unsigned long tmp; @@ -270,7 +268,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) } } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* __ASM_SPINLOCK_H */ diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h index 1504f2b95c57..aa51a38e46e4 100644 --- a/arch/arm64/include/asm/spinlock.h +++ b/arch/arm64/include/asm/spinlock.h @@ -27,8 +27,6 @@ * instructions. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - static inline void arch_spin_lock(arch_spinlock_t *lock) { unsigned int tmp; @@ -303,9 +301,6 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) /* read_can_lock - would read_trylock() succeed? */ #define arch_read_can_lock(x) ((x)->lock < 0x80000000) -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - /* See include/linux/spinlock.h */ #define smp_mb__after_spinlock() smp_mb() diff --git a/arch/blackfin/include/asm/spinlock.h b/arch/blackfin/include/asm/spinlock.h index 3885d12d9939..839d1441af3a 100644 --- a/arch/blackfin/include/asm/spinlock.h +++ b/arch/blackfin/include/asm/spinlock.h @@ -36,8 +36,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) __raw_spin_lock_asm(&lock->lock); } -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - static inline int arch_spin_trylock(arch_spinlock_t *lock) { return __raw_spin_trylock_asm(&lock->lock); @@ -53,8 +51,6 @@ static inline void arch_read_lock(arch_rwlock_t *rw) __raw_read_lock_asm(&rw->lock); } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) - static inline int arch_read_trylock(arch_rwlock_t *rw) { return __raw_read_trylock_asm(&rw->lock); @@ -70,8 +66,6 @@ static inline void arch_write_lock(arch_rwlock_t *rw) __raw_write_lock_asm(&rw->lock); } -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - static inline int arch_write_trylock(arch_rwlock_t *rw) { return __raw_write_trylock_asm(&rw->lock); diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h index 9f9414b9c303..48020863f53a 100644 --- a/arch/hexagon/include/asm/spinlock.h +++ b/arch/hexagon/include/asm/spinlock.h @@ -167,11 +167,6 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock) /* * SMP spinlocks are intended to allow only a single CPU at the lock */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - #define arch_spin_is_locked(x) ((x)->lock != 0) -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h index ed1e6212e9de..35b31884863b 100644 --- a/arch/ia64/include/asm/spinlock.h +++ b/arch/ia64/include/asm/spinlock.h @@ -126,6 +126,7 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock, { arch_spin_lock(lock); } +#define arch_spin_lock_flags arch_spin_lock_flags #ifdef ASM_SUPPORTED @@ -153,6 +154,7 @@ arch_read_lock_flags(arch_rwlock_t *lock, unsigned long flags) : "p6", "p7", "r2", "memory"); } +#define arch_read_lock_flags arch_read_lock_flags #define arch_read_lock(lock) arch_read_lock_flags(lock, 0) #else /* !ASM_SUPPORTED */ @@ -205,6 +207,7 @@ arch_write_lock_flags(arch_rwlock_t *lock, unsigned long flags) : "ar.ccv", "p6", "p7", "r2", "r29", "memory"); } +#define arch_write_lock_flags arch_write_lock_flags #define arch_write_lock(rw) arch_write_lock_flags(rw, 0) #define arch_write_trylock(rw) \ @@ -228,8 +231,6 @@ static inline void arch_write_unlock(arch_rwlock_t *x) #else /* !ASM_SUPPORTED */ -#define arch_write_lock_flags(l, flags) arch_write_lock(l) - #define arch_write_lock(l) \ ({ \ __u64 ia64_val, ia64_set_val = ia64_dep_mi(-1, 0, 31, 1); \ diff --git a/arch/m32r/include/asm/spinlock.h b/arch/m32r/include/asm/spinlock.h index 6809a9bbd169..882203db8723 100644 --- a/arch/m32r/include/asm/spinlock.h +++ b/arch/m32r/include/asm/spinlock.h @@ -28,7 +28,6 @@ */ #define arch_spin_is_locked(x) (*(volatile int *)(&(x)->slock) <= 0) -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) /** * arch_spin_trylock - Try spin lock and return a result @@ -305,7 +304,4 @@ static inline int arch_write_trylock(arch_rwlock_t *lock) return 0; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* _ASM_M32R_SPINLOCK_H */ diff --git a/arch/metag/include/asm/spinlock.h b/arch/metag/include/asm/spinlock.h index b5b4174cde5e..80e3e59172f2 100644 --- a/arch/metag/include/asm/spinlock.h +++ b/arch/metag/include/asm/spinlock.h @@ -15,9 +15,4 @@ * locked. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* __ASM_SPINLOCK_H */ diff --git a/arch/metag/include/asm/spinlock_lnkget.h b/arch/metag/include/asm/spinlock_lnkget.h index d5c334ddfd62..5708ac0a9d09 100644 --- a/arch/metag/include/asm/spinlock_lnkget.h +++ b/arch/metag/include/asm/spinlock_lnkget.h @@ -209,7 +209,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) return tmp; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* __ASM_SPINLOCK_LNKGET_H */ diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h index 4260d3f80d3a..ee81297d9117 100644 --- a/arch/mips/include/asm/spinlock.h +++ b/arch/mips/include/asm/spinlock.h @@ -13,7 +13,4 @@ #include <asm/qrwlock.h> #include <asm/qspinlock.h> -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* _ASM_SPINLOCK_H */ diff --git a/arch/mn10300/include/asm/spinlock.h b/arch/mn10300/include/asm/spinlock.h index 54f75dac8094..879cd0df53ba 100644 --- a/arch/mn10300/include/asm/spinlock.h +++ b/arch/mn10300/include/asm/spinlock.h @@ -84,6 +84,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, : "d" (flags), "a"(&lock->slock), "i"(EPSW_IE | MN10300_CLI_LEVEL) : "memory", "cc"); } +#define arch_spin_lock_flags arch_spin_lock_flags #ifdef __KERNEL__ @@ -171,9 +172,6 @@ static inline int arch_write_trylock(arch_rwlock_t *lock) return 0; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #define _raw_spin_relax(lock) cpu_relax() #define _raw_read_relax(lock) cpu_relax() #define _raw_write_relax(lock) cpu_relax() diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h index 136e1c9bb8a9..d66d7b1efc4e 100644 --- a/arch/parisc/include/asm/spinlock.h +++ b/arch/parisc/include/asm/spinlock.h @@ -31,6 +31,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *x, cpu_relax(); mb(); } +#define arch_spin_lock_flags arch_spin_lock_flags static inline void arch_spin_unlock(arch_spinlock_t *x) { @@ -168,7 +169,4 @@ static __inline__ int arch_write_trylock(arch_rwlock_t *rw) return result; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* __ASM_SPINLOCK_H */ diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h index d83f4f755ad8..b9ebc3085fb7 100644 --- a/arch/powerpc/include/asm/spinlock.h +++ b/arch/powerpc/include/asm/spinlock.h @@ -161,6 +161,7 @@ void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags) local_irq_restore(flags_dis); } } +#define arch_spin_lock_flags arch_spin_lock_flags static inline void arch_spin_unlock(arch_spinlock_t *lock) { @@ -299,9 +300,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw) rw->lock = 0; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #define arch_spin_relax(lock) __spin_yield(lock) #define arch_read_relax(lock) __rw_yield(lock) #define arch_write_relax(lock) __rw_yield(lock) diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h index 4eca60cc81e4..9fa855f91e55 100644 --- a/arch/s390/include/asm/spinlock.h +++ b/arch/s390/include/asm/spinlock.h @@ -81,6 +81,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lp, if (!arch_spin_trylock_once(lp)) arch_spin_lock_wait_flags(lp, flags); } +#define arch_spin_lock_flags arch_spin_lock_flags static inline int arch_spin_trylock(arch_spinlock_t *lp) { @@ -114,9 +115,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp) extern int _raw_read_trylock_retry(arch_rwlock_t *lp); extern int _raw_write_trylock_retry(arch_rwlock_t *lp); -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - static inline int arch_read_trylock_once(arch_rwlock_t *rw) { int old = ACCESS_ONCE(rw->lock); diff --git a/arch/sh/include/asm/spinlock-cas.h b/arch/sh/include/asm/spinlock-cas.h index 295993c2598e..270ee4d3e25b 100644 --- a/arch/sh/include/asm/spinlock-cas.h +++ b/arch/sh/include/asm/spinlock-cas.h @@ -27,7 +27,6 @@ static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new */ #define arch_spin_is_locked(x) ((x)->lock <= 0) -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) static inline void arch_spin_lock(arch_spinlock_t *lock) { @@ -90,7 +89,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw) return __sl_cas(&rw->lock, RW_LOCK_BIAS, 0) == RW_LOCK_BIAS; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* __ASM_SH_SPINLOCK_CAS_H */ diff --git a/arch/sh/include/asm/spinlock-llsc.h b/arch/sh/include/asm/spinlock-llsc.h index a6f9edd15317..715595de286a 100644 --- a/arch/sh/include/asm/spinlock-llsc.h +++ b/arch/sh/include/asm/spinlock-llsc.h @@ -19,7 +19,6 @@ */ #define arch_spin_is_locked(x) ((x)->lock <= 0) -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) /* * Simple spin lock operations. There are two variants, one clears IRQ's @@ -197,7 +196,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw) return (oldval > (RW_LOCK_BIAS - 1)); } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* __ASM_SH_SPINLOCK_LLSC_H */ diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h index 9d9129efd5d6..12bf857b471e 100644 --- a/arch/sparc/include/asm/spinlock_32.h +++ b/arch/sparc/include/asm/spinlock_32.h @@ -182,10 +182,6 @@ static inline int __arch_read_trylock(arch_rwlock_t *rw) res; \ }) -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) -#define arch_read_lock_flags(rw, flags) arch_read_lock(rw) -#define arch_write_lock_flags(rw, flags) arch_write_lock(rw) - #endif /* !(__ASSEMBLY__) */ #endif /* __SPARC_SPINLOCK_H */ diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h index 3b67705e1b74..99b6e1c4f630 100644 --- a/arch/sparc/include/asm/spinlock_64.h +++ b/arch/sparc/include/asm/spinlock_64.h @@ -13,9 +13,6 @@ #include <asm/qrwlock.h> #include <asm/qspinlock.h> -#define arch_read_lock_flags(p, f) arch_read_lock(p) -#define arch_write_lock_flags(p, f) arch_write_lock(p) - #endif /* !(__ASSEMBLY__) */ #endif /* !(__SPARC64_SPINLOCK_H) */ diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h index 91d05f21cba9..fb5313d77315 100644 --- a/arch/tile/include/asm/spinlock_32.h +++ b/arch/tile/include/asm/spinlock_32.h @@ -51,9 +51,6 @@ static inline int arch_spin_is_locked(arch_spinlock_t *lock) void arch_spin_lock(arch_spinlock_t *lock); -/* We cannot take an interrupt after getting a ticket, so don't enable them. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - int arch_spin_trylock(arch_spinlock_t *lock); static inline void arch_spin_unlock(arch_spinlock_t *lock) @@ -109,7 +106,4 @@ void arch_read_unlock(arch_rwlock_t *rwlock); */ void arch_write_unlock(arch_rwlock_t *rwlock); -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* _ASM_TILE_SPINLOCK_32_H */ diff --git a/arch/tile/include/asm/spinlock_64.h b/arch/tile/include/asm/spinlock_64.h index c802f48badf4..5b616ef642a8 100644 --- a/arch/tile/include/asm/spinlock_64.h +++ b/arch/tile/include/asm/spinlock_64.h @@ -75,9 +75,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) /* Try to get the lock, and return whether we succeeded. */ int arch_spin_trylock(arch_spinlock_t *lock); -/* We cannot take an interrupt after getting a ticket, so don't enable them. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - /* * Read-write spinlocks, allowing multiple readers * but only one writer. @@ -138,7 +135,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw) return 0; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* _ASM_TILE_SPINLOCK_64_H */ diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h index a558c187f20c..c6a6adf0a5c5 100644 --- a/arch/x86/include/asm/spinlock.h +++ b/arch/x86/include/asm/spinlock.h @@ -41,7 +41,4 @@ #include <asm/qrwlock.h> -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* _ASM_X86_SPINLOCK_H */ diff --git a/arch/xtensa/include/asm/spinlock.h b/arch/xtensa/include/asm/spinlock.h index d005af51e2e1..c6e1290dcbb7 100644 --- a/arch/xtensa/include/asm/spinlock.h +++ b/arch/xtensa/include/asm/spinlock.h @@ -33,8 +33,6 @@ #define arch_spin_is_locked(x) ((x)->slock != 0) -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - static inline void arch_spin_lock(arch_spinlock_t *lock) { unsigned long tmp; @@ -198,7 +196,4 @@ static inline void arch_read_unlock(arch_rwlock_t *rw) : "memory"); } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - #endif /* _XTENSA_SPINLOCK_H */ |