• Arnaldo Carvalho de Melo's avatar
    tools headers uapi: Sync asm-generic/mman-common.h with the kernel · b1ba55cf
    Arnaldo Carvalho de Melo authored
    To pick the changes from:
    
      1a4e58cc ("mm: introduce MADV_PAGEOUT")
      9c276cc6 ("mm: introduce MADV_COLD")
    
    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
      $ git diff
      diff --git a/tools/include/uapi/asm-generic/mman-common.h b/tools/include/uapi/asm-generic/mman-common.h
      index 63b1f506ea67..c160a5354eb6 100644
      --- a/tools/include/uapi/asm-generic/mman-common.h
      +++ b/tools/include/uapi/asm-generic/mman-common.h
      @@ -67,6 +67,9 @@
       #define MADV_WIPEONFORK 18             /* Zero memory on fork, child only */
       #define MADV_KEEPONFORK 19             /* Undo MADV_WIPEONFORK */
    
      +#define MADV_COLD      20              /* deactivate these pages */
      +#define MADV_PAGEOUT   21              /* reclaim these pages */
      +
       /* compatibility flags */
       #define MAP_FILE       0
    
      $ tools/perf/trace/beauty/madvise_behavior.sh > after
      $ diff -u before after
      --- before	2019-09-27 11:29:43.346320100 -0300
      +++ after	2019-09-27 11:30:03.838570439 -0300
      @@ -16,6 +16,8 @@
       	[17] = "DODUMP",
       	[18] = "WIPEONFORK",
       	[19] = "KEEPONFORK",
      +	[20] = "COLD",
      +	[21] = "PAGEOUT",
       	[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: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
    Cc: Minchan Kim <minchan@kernel.org>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Link: https://lkml.kernel.org/n/tip-n40y6c4sa49p29q6sl8w3ufx@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    b1ba55cf
mman-common.h 3.34 KB