From: Arnaldo Carvalho de Melo <[email protected]> Since 195564390210 ("perf_counter: kerneltop: simplify data_head read") we do not use it, and this was way back in 2009, remove it before some other arch maintainer adds its implementation, like so many did, needlessly :-)
Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/perf-sys.h | 9 --------- 1 file changed, 9 deletions(-) diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h index e4b717e9eb6c..2aaa7366cdc2 100644 --- a/tools/perf/perf-sys.h +++ b/tools/perf/perf-sys.h @@ -10,12 +10,10 @@ #include <asm/barrier.h> #if defined(__i386__) -#define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC {"model name"} #endif #if defined(__x86_64__) -#define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC {"model name"} #endif @@ -44,7 +42,6 @@ #endif #ifdef __ia64__ -#define cpu_relax() asm volatile ("hint @pause" ::: "memory") #define CPUINFO_PROC {"model name"} #endif @@ -53,7 +50,6 @@ #endif #ifdef __aarch64__ -#define cpu_relax() asm volatile("yield" ::: "memory") #endif #ifdef __mips__ @@ -73,14 +69,9 @@ #endif #ifdef __tile__ -#define cpu_relax() asm volatile ("mfspr zero, PASS" ::: "memory") #define CPUINFO_PROC {"model name"} #endif -#ifndef cpu_relax -#define cpu_relax() barrier() -#endif - static inline int sys_perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu, int group_fd, -- 2.13.5
