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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-12-18 16:15:53 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-12-18 16:17:40 -0300
commitf9cdd63e79946d2f635d5c23d76811c2d710aa5c (patch)
tree52c67a9016420ba52a8e0639efb6918025216c1e /tools/include
parenta66313408a08a9758e3007fe9a6cfe47b0dec88b (diff)
downloadlinux-f9cdd63e79946d2f635d5c23d76811c2d710aa5c.tar.bz2
tools headers uapi: Grab a copy of fadvise.h
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>
Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/uapi/linux/fadvise.h22
1 files changed, 22 insertions, 0 deletions
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 */