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authorArnaldo Carvalho de Melo <acme@redhat.com>2019-09-27 17:30:30 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-04-01 22:19:35 +0300
commit6d05e1398507fc3509debc397bb9dfa18fc5230e (patch)
treebfd6ef8d4d08242ba42050fb82186d0021fc0908 /tools
parent9a195da42feca3948d7f1ee8a689e2b9d2406fb5 (diff)
downloadlinux-6d05e1398507fc3509debc397bb9dfa18fc5230e.tar.xz
tools headers UAPI: Sync asm-generic/mman-common.h with the kernel
To pick the changes from: 9457056ac426e5ed ("mm: madvise: MADV_DONTNEED_LOCKED") That result in these changes in the tools: $ diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h --- tools/include/uapi/asm-generic/mman-common.h 2022-03-29 16:17:50.461694991 -0300 +++ include/uapi/asm-generic/mman-common.h 2022-03-27 19:12:48.923250468 -0300 @@ -75,6 +75,8 @@ #define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */ #define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */ +#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */ + /* compatibility flags */ #define MAP_FILE 0 $ 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 2022-03-29 16:18:04.091044244 -0300 +++ after 2022-03-29 16:18:11.692238906 -0300 @@ -20,6 +20,7 @@ [21] = "PAGEOUT", [22] = "POPULATE_READ", [23] = "POPULATE_WRITE", + [24] = "DONTNEED_LOCKED", [100] = "HWPOISON", [101] = "SOFT_OFFLINE", }; $ I.e. now when madvise gets those behaviours as args, 'perf trace' will be able to translate from the number to a human readable string and to use the strings in tracepoint filter expressions. 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: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lore.kernel.org/lkml/YkNcUfeh795yqGMV@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/include/uapi/asm-generic/mman-common.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/include/uapi/asm-generic/mman-common.h b/tools/include/uapi/asm-generic/mman-common.h
index 1567a3294c3d..6c1aa92a92e4 100644
--- a/tools/include/uapi/asm-generic/mman-common.h
+++ b/tools/include/uapi/asm-generic/mman-common.h
@@ -75,6 +75,8 @@
#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */
#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */
+#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */
+
/* compatibility flags */
#define MAP_FILE 0