From: tip-bot for Borislav Petkov <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com,
mingo@kernel.org, peterz@infradead.org, namhyung@gmail.com,
jolsa@redhat.com, dsahern@gmail.com, tglx@linutronix.de,
bp@suse.de, rric@kernel.org
Subject: [tip:perf/core] perf tools: Drop prefetch.h
Date: Sat, 22 Feb 2014 09:59:28 -0800 [thread overview]
Message-ID: <tip-5072f2733afe26c354aa9d277cb1544e4b0b3846@git.kernel.org> (raw)
In-Reply-To: <1391611914-26054-4-git-send-email-bp@alien8.de>
Commit-ID: 5072f2733afe26c354aa9d277cb1544e4b0b3846
Gitweb: http://git.kernel.org/tip/5072f2733afe26c354aa9d277cb1544e4b0b3846
Author: Borislav Petkov <bp@suse.de>
AuthorDate: Wed, 5 Feb 2014 15:51:54 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 18 Feb 2014 09:34:49 -0300
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>
---
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(-)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 496871a..77b153f 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 1d928a0..bfe0a2a 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 7841e48..0000000
--- 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
prev parent reply other threads:[~2014-02-22 18:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-05 14:51 [PATCH 0/3] perf-tool: Move last fs* bits Borislav Petkov
2014-02-05 14:51 ` [PATCH 1/3] perf: Move fs.* to lib/api/fs/ Borislav Petkov
2014-02-05 14:51 ` [PATCH 2/3] perf: Move hash.h header Borislav Petkov
2014-02-22 17:59 ` [tip:perf/core] perf tools: " tip-bot for Borislav Petkov
2014-02-05 14:51 ` [PATCH 3/3] perf: Drop prefetch.h Borislav Petkov
2014-02-22 17:59 ` tip-bot for Borislav Petkov [this message]
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