diff options
| author | Borislav Petkov <bp@suse.de> | 2014-02-05 15:51:54 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-02-18 09:34:49 -0300 |
| commit | 5072f2733afe26c354aa9d277cb1544e4b0b3846 (patch) | |
| tree | dff73cbbe3be0b06d07cfdb09ca9ebaded225830 /tools/perf | |
| parent | 0e55fa1131dcacfc8f18fabecc93643a105bdc14 (diff) | |
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 <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>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/Makefile.perf | 1 | ||||
| -rw-r--r-- | tools/perf/util/include/linux/list.h | 1 | ||||
| -rw-r--r-- | tools/perf/util/include/linux/prefetch.h | 6 |
3 files changed, 0 insertions, 8 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 496871ae459..77b153fa23a 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 1d928a0ce99..bfe0a2afd0d 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 7841e485d8c..00000000000 --- 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 |