Commit-ID: 5bd0b85ba8bb9de6f61f33f3752fc85f4c87fc22 Gitweb: http://git.kernel.org/tip/5bd0b85ba8bb9de6f61f33f3752fc85f4c87fc22 Author: Christian Borntraeger <borntraeger@xxxxxxxxxx> AuthorDate: Tue, 25 Oct 2016 11:03:15 +0200 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Wed, 16 Nov 2016 10:15:11 +0100 locking/core, arch: Remove cpu_relax_lowlatency() As there are no users left, we can remove cpu_relax_lowlatency() implementations from every architecture. Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> Cc: Nicholas Piggin <npiggin@xxxxxxxxx> Cc: Noam Camus <noamc@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Will Deacon <will.deacon@xxxxxxx> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx Cc: virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx Cc: <linux-arch@xxxxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/1477386195-32736-6-git-send-email-borntraeger@xxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- arch/alpha/include/asm/processor.h | 1 - arch/arc/include/asm/processor.h | 2 -- arch/arm/include/asm/processor.h | 1 - arch/arm64/include/asm/processor.h | 1 - arch/avr32/include/asm/processor.h | 1 - arch/blackfin/include/asm/processor.h | 1 - arch/c6x/include/asm/processor.h | 1 - arch/cris/include/asm/processor.h | 1 - arch/frv/include/asm/processor.h | 1 - arch/h8300/include/asm/processor.h | 1 - arch/hexagon/include/asm/processor.h | 1 - arch/ia64/include/asm/processor.h | 1 - arch/m32r/include/asm/processor.h | 1 - arch/m68k/include/asm/processor.h | 1 - arch/metag/include/asm/processor.h | 1 - arch/microblaze/include/asm/processor.h | 1 - arch/mips/include/asm/processor.h | 1 - arch/mn10300/include/asm/processor.h | 1 - arch/nios2/include/asm/processor.h | 1 - arch/openrisc/include/asm/processor.h | 1 - arch/parisc/include/asm/processor.h | 1 - arch/powerpc/include/asm/processor.h | 1 - arch/s390/include/asm/processor.h | 1 - arch/score/include/asm/processor.h | 1 - arch/sh/include/asm/processor.h | 1 - arch/sparc/include/asm/processor_32.h | 1 - arch/sparc/include/asm/processor_64.h | 1 - arch/tile/include/asm/processor.h | 1 - arch/unicore32/include/asm/processor.h | 1 - arch/x86/include/asm/processor.h | 1 - arch/x86/um/asm/processor.h | 1 - arch/xtensa/include/asm/processor.h | 1 - 32 files changed, 33 deletions(-) diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h index 0556fda..31e8dbe 100644 --- a/arch/alpha/include/asm/processor.h +++ b/arch/alpha/include/asm/processor.h @@ -59,7 +59,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #define ARCH_HAS_PREFETCH #define ARCH_HAS_PREFETCHW diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h index 6c158d5..d102a49 100644 --- a/arch/arc/include/asm/processor.h +++ b/arch/arc/include/asm/processor.h @@ -61,7 +61,6 @@ struct task_struct; #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #else @@ -69,7 +68,6 @@ struct task_struct; __asm__ __volatile__ (".word %0" : : "i"(CTOP_INST_SCHD_RW) : "memory") #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() barrier() #endif diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index db660e0..9e71c58b 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h @@ -83,7 +83,6 @@ unsigned long get_wchan(struct task_struct *p); #endif #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1) diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 3f9b0e5..6132f64 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -150,7 +150,6 @@ static inline void cpu_relax(void) } #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* Thread switching */ extern struct task_struct *cpu_switch_to(struct task_struct *prev, diff --git a/arch/avr32/include/asm/processor.h b/arch/avr32/include/asm/processor.h index e412e8b..ee62365 100644 --- a/arch/avr32/include/asm/processor.h +++ b/arch/avr32/include/asm/processor.h @@ -93,7 +93,6 @@ extern struct avr32_cpuinfo boot_cpu_data; #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #define cpu_sync_pipeline() asm volatile("sub pc, -2" : : : "memory") struct cpu_context { diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h index 8b8704a..57acfb1 100644 --- a/arch/blackfin/include/asm/processor.h +++ b/arch/blackfin/include/asm/processor.h @@ -93,7 +93,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() smp_mb() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* Get the Silicon Revision of the chip */ static inline uint32_t __pure bfin_revid(void) diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h index 914d730..1fd22e7 100644 --- a/arch/c6x/include/asm/processor.h +++ b/arch/c6x/include/asm/processor.h @@ -122,7 +122,6 @@ extern unsigned long get_wchan(struct task_struct *p); #define cpu_relax() do { } while (0) #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() extern const struct seq_operations cpuinfo_op; diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h index 01dd52e..1a57841 100644 --- a/arch/cris/include/asm/processor.h +++ b/arch/cris/include/asm/processor.h @@ -64,7 +64,6 @@ static inline void release_thread(struct task_struct *dead_task) #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() void default_idle(void); diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h index 4d00d65..c1e5f2a 100644 --- a/arch/frv/include/asm/processor.h +++ b/arch/frv/include/asm/processor.h @@ -108,7 +108,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* data cache prefetch */ #define ARCH_HAS_PREFETCH diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h index 683a061..42d6053 100644 --- a/arch/h8300/include/asm/processor.h +++ b/arch/h8300/include/asm/processor.h @@ -128,7 +128,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #define HARD_RESET_NOW() ({ \ local_irq_disable(); \ diff --git a/arch/hexagon/include/asm/processor.h b/arch/hexagon/include/asm/processor.h index 1558ddb..5d694cc 100644 --- a/arch/hexagon/include/asm/processor.h +++ b/arch/hexagon/include/asm/processor.h @@ -57,7 +57,6 @@ struct thread_struct { #define cpu_relax() __vmyield() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* * Decides where the kernel will search for a free chunk of vm space during diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h index 4654b71..0c2c3b2 100644 --- a/arch/ia64/include/asm/processor.h +++ b/arch/ia64/include/asm/processor.h @@ -548,7 +548,6 @@ ia64_eoi (void) #define cpu_relax() ia64_hint(ia64_hint_pause) #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() static inline int ia64_get_irr(unsigned int vector) diff --git a/arch/m32r/include/asm/processor.h b/arch/m32r/include/asm/processor.h index b262037..9b83a13 100644 --- a/arch/m32r/include/asm/processor.h +++ b/arch/m32r/include/asm/processor.h @@ -134,6 +134,5 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #endif /* _ASM_M32R_PROCESSOR_H */ diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h index 13e07ae..b0d0442 100644 --- a/arch/m68k/include/asm/processor.h +++ b/arch/m68k/include/asm/processor.h @@ -157,6 +157,5 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #endif diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h index 61d6e27..ee302a6 100644 --- a/arch/metag/include/asm/processor.h +++ b/arch/metag/include/asm/processor.h @@ -153,7 +153,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() extern void setup_priv(void); diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h index fd7dd11..08ec1f7 100644 --- a/arch/microblaze/include/asm/processor.h +++ b/arch/microblaze/include/asm/processor.h @@ -23,7 +23,6 @@ extern const struct seq_operations cpuinfo_op; # define cpu_relax() barrier() # define cpu_relax_yield() cpu_relax() -# define cpu_relax_lowlatency() cpu_relax() #define task_pt_regs(tsk) \ (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1) diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 9a656f6..8ea95e7 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -390,7 +390,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* * Return_address is a replacement for __builtin_return_address(count) diff --git a/arch/mn10300/include/asm/processor.h b/arch/mn10300/include/asm/processor.h index 89f63d1..d11397b 100644 --- a/arch/mn10300/include/asm/processor.h +++ b/arch/mn10300/include/asm/processor.h @@ -70,7 +70,6 @@ extern void dodgy_tsc(void); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* * User space process size: 1.75GB (default). diff --git a/arch/nios2/include/asm/processor.h b/arch/nios2/include/asm/processor.h index 303e593..d32c176 100644 --- a/arch/nios2/include/asm/processor.h +++ b/arch/nios2/include/asm/processor.h @@ -89,7 +89,6 @@ extern unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #endif /* __ASSEMBLY__ */ diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h index 6ecfc2a..7f47fc7 100644 --- a/arch/openrisc/include/asm/processor.h +++ b/arch/openrisc/include/asm/processor.h @@ -93,7 +93,6 @@ extern unsigned long thread_saved_pc(struct task_struct *t); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #endif /* __ASSEMBLY__ */ #endif /* __ASM_OPENRISC_PROCESSOR_H */ diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h index ea2ff9f..a4a07f4 100644 --- a/arch/parisc/include/asm/processor.h +++ b/arch/parisc/include/asm/processor.h @@ -310,7 +310,6 @@ extern unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* * parisc_requires_coherency() is used to identify the combined VIPT/PIPT diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 908fa7c..5684e68 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -405,7 +405,6 @@ static inline unsigned long __pack_fe01(unsigned int fpmode) #endif #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* Check that a certain kernel stack pointer is valid in task_struct p */ int validate_sp(unsigned long sp, struct task_struct *p, diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 79343e3..9e32f25 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -237,7 +237,6 @@ static inline unsigned short stap(void) void cpu_relax_yield(void); #define cpu_relax() barrier() -#define cpu_relax_lowlatency() barrier() #define ECAG_CACHE_ATTRIBUTE 0 #define ECAG_CPU_ATTRIBUTE 1 diff --git a/arch/score/include/asm/processor.h b/arch/score/include/asm/processor.h index e8e87b4..a1e97c0 100644 --- a/arch/score/include/asm/processor.h +++ b/arch/score/include/asm/processor.h @@ -25,7 +25,6 @@ extern unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #define release_thread(thread) do {} while (0) /* diff --git a/arch/sh/include/asm/processor.h b/arch/sh/include/asm/processor.h index 099a991..9454ff1 100644 --- a/arch/sh/include/asm/processor.h +++ b/arch/sh/include/asm/processor.h @@ -98,7 +98,6 @@ extern struct sh_cpuinfo cpu_data[]; #define cpu_sleep() __asm__ __volatile__ ("sleep" : : : "memory") #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() void default_idle(void); void stop_this_cpu(void *); diff --git a/arch/sparc/include/asm/processor_32.h b/arch/sparc/include/asm/processor_32.h index 50e908a3c..fc32b73 100644 --- a/arch/sparc/include/asm/processor_32.h +++ b/arch/sparc/include/asm/processor_32.h @@ -120,7 +120,6 @@ int do_mathemu(struct pt_regs *regs, struct task_struct *fpt); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() extern void (*sparc_idle)(void); diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h index 3e8fac7..12787df 100644 --- a/arch/sparc/include/asm/processor_64.h +++ b/arch/sparc/include/asm/processor_64.h @@ -217,7 +217,6 @@ unsigned long get_wchan(struct task_struct *task); ".previous" \ ::: "memory") #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* Prefetch support. This is tuned for UltraSPARC-III and later. * UltraSPARC-I will treat these as nops, and UltraSPARC-II has diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h index 91a39a5..c1c228b 100644 --- a/arch/tile/include/asm/processor.h +++ b/arch/tile/include/asm/processor.h @@ -265,7 +265,6 @@ static inline void cpu_relax(void) } #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* Info on this processor (see fs/proc/cpuinfo.c) */ struct seq_operations; diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h index fc54d5d..eeefe7c 100644 --- a/arch/unicore32/include/asm/processor.h +++ b/arch/unicore32/include/asm/processor.h @@ -72,7 +72,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1) diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 44adada..7513c99 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -589,7 +589,6 @@ static __always_inline void cpu_relax(void) } #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* Stop speculative execution and prefetching of modified code. */ static inline void sync_core(void) diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h index 01597af..b4bd63b 100644 --- a/arch/x86/um/asm/processor.h +++ b/arch/x86/um/asm/processor.h @@ -27,7 +27,6 @@ static inline void rep_nop(void) #define cpu_relax() rep_nop() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() #define task_pt_regs(t) (&(t)->thread.regs) diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index fe14dc2..7d8d6be 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -207,7 +207,6 @@ extern unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() #define cpu_relax_yield() cpu_relax() -#define cpu_relax_lowlatency() cpu_relax() /* Special register access. */ -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
