• Arnaldo Carvalho de Melo's avatar
    tools headers UAPI: Sync asm-generic/mman-common.h with the kernel · 097e4e9d
    Arnaldo Carvalho de Melo authored
    To pick the changes from:
    
    Fixes: 4ca9b385 ("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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    097e4e9d
mman-common.h 3.58 KB