diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 16:15:53 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 16:17:40 -0300 |
| commit | f9cdd63e79946d2f635d5c23d76811c2d710aa5c (patch) | |
| tree | 52c67a9016420ba52a8e0639efb6918025216c1e /tools/include | |
| parent | a66313408a08a9758e3007fe9a6cfe47b0dec88b (diff) | |
| download | lwn-f9cdd63e79946d2f635d5c23d76811c2d710aa5c.tar.gz lwn-f9cdd63e79946d2f635d5c23d76811c2d710aa5c.zip | |
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.h | 22 |
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 */ |