From 5072f2733afe26c354aa9d277cb1544e4b0b3846 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 5 Feb 2014 15:51:54 +0100 Subject: [PATCH] perf tools: Drop prefetch.h This was needed at the time before e66eed651fd1 ("list: remove prefetching from regular list iterators") where the list iterators did prefetch elements. This turned out to be counter-productive and hurt performance and they were removed. Which makes the prefetch.h header unused so drop it. Signed-off-by: Borislav Petkov Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Robert Richter Link: http://lkml.kernel.org/r/1391611914-26054-4-git-send-email-bp@alien8.de Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile.perf | 1 - tools/perf/util/include/linux/list.h | 1 - tools/perf/util/include/linux/prefetch.h | 6 ------ 3 files changed, 8 deletions(-) delete mode 100644 tools/perf/util/include/linux/prefetch.h diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 496871ae4590..77b153fa23a5 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -219,7 +219,6 @@ LIB_H += util/include/linux/kernel.h LIB_H += util/include/linux/list.h LIB_H += util/include/linux/export.h LIB_H += util/include/linux/poison.h -LIB_H += util/include/linux/prefetch.h LIB_H += util/include/linux/rbtree.h LIB_H += util/include/linux/rbtree_augmented.h LIB_H += util/include/linux/string.h diff --git a/tools/perf/util/include/linux/list.h b/tools/perf/util/include/linux/list.h index 1d928a0ce997..bfe0a2afd0d2 100644 --- a/tools/perf/util/include/linux/list.h +++ b/tools/perf/util/include/linux/list.h @@ -1,5 +1,4 @@ #include -#include #include "../../../../include/linux/list.h" diff --git a/tools/perf/util/include/linux/prefetch.h b/tools/perf/util/include/linux/prefetch.h deleted file mode 100644 index 7841e485d8c3..000000000000 --- a/tools/perf/util/include/linux/prefetch.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef PERF_LINUX_PREFETCH_H -#define PERF_LINUX_PREFETCH_H - -static inline void prefetch(void *a __attribute__((unused))) { } - -#endif