• Akinobu Mita's avatar
    generic debug pagealloc: build fix · ee3b4290
    Akinobu Mita authored
    
    
    This fixes a build failure with generic debug pagealloc:
    
      mm/debug-pagealloc.c: In function 'set_page_poison':
      mm/debug-pagealloc.c:8: error: 'struct page' has no member named 'debug_flags'
      mm/debug-pagealloc.c: In function 'clear_page_poison':
      mm/debug-pagealloc.c:13: error: 'struct page' has no member named 'debug_flags'
      mm/debug-pagealloc.c: In function 'page_poison':
      mm/debug-pagealloc.c:18: error: 'struct page' has no member named 'debug_flags'
      mm/debug-pagealloc.c: At top level:
      mm/debug-pagealloc.c:120: error: redefinition of 'kernel_map_pages'
      include/linux/mm.h:1278: error: previous definition of 'kernel_map_pages' was here
      mm/debug-pagealloc.c: In function 'kernel_map_pages':
      mm/debug-pagealloc.c:122: error: 'debug_pagealloc_enabled' undeclared (first use in this function)
    
    by fixing
    
     - debug_flags should be in struct page
     - define DEBUG_PAGEALLOC config option for all architectures
    Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
    Reported-by: default avatarAlexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    ee3b4290