Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [PATCH 3/3] perf: Drop prefetch.h | Date | Wed, 5 Feb 2014 15:51:54 +0100 |
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From: Borislav Petkov <bp@suse.de>
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 <bp@suse.de> --- 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 1afe52f72d1c..f4f2c3a3c094 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 <linux/kernel.h> -#include <linux/prefetch.h> #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 -- 1.8.5.2.192.g7794a68
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