X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=libringbuffer%2Fsmp.h;h=034058e9ee54ea032420fa8153636071f83cf3cf;hb=bdcf8d826c422e00a533d99bee937ddd0f877842;hp=3d138a9a890ce69afede6b5975a334556823be39;hpb=a6352fd40a2090fd883a6c369144bf405c9e9ec4;p=lttng-ust.git diff --git a/libringbuffer/smp.h b/libringbuffer/smp.h index 3d138a9a..034058e9 100644 --- a/libringbuffer/smp.h +++ b/libringbuffer/smp.h @@ -9,7 +9,7 @@ * Dual LGPL v2.1/GPL v2 license. */ -#include +#include "getcpu.h" /* * 4kB of per-cpu data available. Enough to hold the control structures, @@ -28,45 +28,6 @@ int num_possible_cpus(void) return __num_possible_cpus; } -/* - * get_cpu() returns the current CPU number. It may change due to - * migration, so it is only statistically accurate. - */ -#ifndef UST_VALGRIND -static inline -int get_cpu(void) -{ - int cpu; - - cpu = sched_getcpu(); - if (likely(cpu >= 0)) - return cpu; - /* - * If getcpu(2) is not implemented in the Kernel use CPU 0 as fallback. - */ - return 0; -} - -#else /* #else #ifndef UST_VALGRIND */ -static inline -int get_cpu(void) -{ - /* - * Valgrind does not support the sched_getcpu() vsyscall. - * It causes it to detect a segfault in the program and stop it. - * So if we want to check libust with valgrind, we have to refrain - * from using this call. TODO: it would probably be better to return - * other values too, to better test it. - */ - return 0; -} -#endif /* #else #ifndef UST_VALGRIND */ - -static inline -void put_cpu(void) -{ -} - #define for_each_possible_cpu(cpu) \ for ((cpu) = 0; (cpu) < num_possible_cpus(); (cpu)++)