diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-09-27 11:30:30 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-07-05 14:30:56 -0300 |
| commit | 097e4e9dc7c7267465f461081b161691c70369eb (patch) | |
| tree | ae43ce5d77166e3f011e02ebf2e06e3de3a64978 | |
| parent | 84d5c07d2dfb41fa7caacf29742f1dd9e56a15c6 (diff) | |
tools headers UAPI: Sync asm-generic/mman-common.h with the kernel
To pick the changes from:
Fixes: 4ca9b3859dac14bb ("mm/madvise: introduce MADV_POPULATE_(READ|WRITE) to prefault page tables")
That result in these changes in the tools:
$ tools/perf/trace/beauty/madvise_behavior.sh > before
$ cp include/uapi/asm-generic/mman-common.h tools/include/uapi/asm-generic/mman-common.h
$ tools/perf/trace/beauty/madvise_behavior.sh > after
$ diff -u before after
--- before 2021-07-05 14:30:15.167212621 -0300
+++ after 2021-07-05 14:30:26.638462594 -0300
@@ -18,6 +18,8 @@
[19] = "KEEPONFORK",
[20] = "COLD",
[21] = "PAGEOUT",
+ [22] = "POPULATE_READ",
+ [23] = "POPULATE_WRITE",
[100] = "HWPOISON",
[101] = "SOFT_OFFLINE",
};
$
I.e. now when madvise gets those behaviours as args, it will be able to
translate from the number to a human readable string.
This addresses the following perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h'
diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h
Cc: David Hildenbrand <david@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/include/uapi/asm-generic/mman-common.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/include/uapi/asm-generic/mman-common.h b/tools/include/uapi/asm-generic/mman-common.h index f94f65d429be..1567a3294c3d 100644 --- a/tools/include/uapi/asm-generic/mman-common.h +++ b/tools/include/uapi/asm-generic/mman-common.h @@ -72,6 +72,9 @@ #define MADV_COLD 20 /* deactivate these pages */ #define MADV_PAGEOUT 21 /* reclaim these pages */ +#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */ +#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */ + /* compatibility flags */ #define MAP_FILE 0 |