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perf tools: Drop prefetch.h 

This was needed at the time before e66eed651f ("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>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Richter <rric@kernel.org>
Link: http://lkml.kernel.org/r/1391611914-26054-4-git-send-email-bp@alien8.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Borislav Petkov 2014-02-05 15:51:54 +01:00 committed by Arnaldo Carvalho de Melo
parent 0e55fa1131
commit 5072f2733a
3 changed files with 0 additions and 8 deletions
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1
tools/perf/Makefile.perf
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@ -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

1
tools/perf/util/include/linux/list.h
View File

@ -1,5 +1,4 @@
#include <linux/kernel.h>
#include <linux/prefetch.h>
#include "../../../../include/linux/list.h"

6
tools/perf/util/include/linux/prefetch.h
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@ -1,6 +0,0 @@
#ifndef PERF_LINUX_PREFETCH_H
#define PERF_LINUX_PREFETCH_H
static inline void prefetch(void *a __attribute__((unused))) { }
#endif