[PATCH 59/63] tools headers uapi: Grab a copy of fadvise.h

Arnaldo Carvalho de Melo
2018-12-18T22:17:20Z

Will be used to generate the string table for fadvise64's 'advice'
argument.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-muswpnft8q9krktv052yrgsc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/include/uapi/linux/fadvise.h | 22 ++++++++++++++++++++++
tools/perf/check-headers.sh | 1 +
2 files changed, 23 insertions(+)
create mode 100644 tools/include/uapi/linux/fadvise.h

diff --git a/tools/include/uapi/linux/fadvise.h b/tools/include/uapi/linux/fadvise.h
new file mode 100644
index 000000000000..0862b87434c2
--- /dev/null
+++ b/tools/include/uapi/linux/fadvise.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef FADVISE_H_INCLUDED
+#define FADVISE_H_INCLUDED
+
+#define POSIX_FADV_NORMAL 0 /* No further special treatment. */
+#define POSIX_FADV_RANDOM 1 /* Expect random page references. */
+#define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
+#define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
+
+/*
+ * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE
+ * for s390-64 differ from the values for the rest of the world.
+ */
+#if defined(__s390x__)
+#define POSIX_FADV_DONTNEED 6 /* Don't need these pages. */
+#define POSIX_FADV_NOREUSE 7 /* Data will be accessed once. */
+#else
+#define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
+#define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
+#endif
+
+#endif /* FADVISE_H_INCLUDED */
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 10d97dc632da..8e811ea0cf85 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -4,6 +4,7 @@
HEADERS='
include/uapi/drm/drm.h
include/uapi/drm/i915_drm.h
+include/uapi/linux/fadvise.h
include/uapi/linux/fcntl.h
include/uapi/linux/fs.h
include/uapi/linux/kcmp.h
--
2.19.2