30 May, 2012

1 commit

• 02602a18c   bug: completely remove code generated by disabled VM_BUG_ON() ... Browse Code »

  Even if CONFIG_DEBUG_VM=n gcc genereates code for some VM_BUG_ON()

  for example VM_BUG_ON(!PageCompound(page) || !PageHead(page)); in
  do_huge_pmd_wp_page() generates 114 bytes of code.

  But they mostly disappears when I split this VM_BUG_ON into two:

  -VM_BUG_ON(!PageCompound(page) || !PageHead(page));
  +VM_BUG_ON(!PageCompound(page));
  +VM_BUG_ON(!PageHead(page));

  weird... but anyway after this patch code disappears completely.

  add/remove: 0/0 grow/shrink: 7/97 up/down: 135/-1784 (-1649)

  Signed-off-by: Konstantin Khlebnikov
  Cc: Linus Torvalds
  Cc: Geert Uytterhoeven
  Cc: "H. Peter Anvin"
  Cc: Cong Wang
  Cc: Hugh Dickins
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Konstantin Khlebnikov

  2012-05-30 07:22:20 +0800  

10 Aug, 2010

1 commit

• 4e60c86bd   gcc-4.6: mm: fix unused but set warnings ... Browse Code »

  No real bugs, just some dead code and some fixups.

  Signed-off-by: Andi Kleen
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Andi Kleen

  2010-08-10 11:44:58 +0800  

12 Dec, 2009

1 commit

• 98b8788ae   drop explicit include of autoconf.h ... Browse Code »

  kbuild.h forces include of autoconf.h on the
  commandline using -include - so we do not need to
  include the file explicit.

  Signed-off-by: Sam Ravnborg
  Signed-off-by: Michal Marek

  Sam Ravnborg

  2009-12-12 20:08:15 +0800  

19 Jun, 2008

2 commits

• 7aa413def   x86, MM: virtual address debug, cleanups ... Browse Code »

  Signed-off-by: Ingo Molnar

  Ingo Molnar

  2008-06-19 19:33:11 +0800  
• 59ea74633   MM: virtual address debug ... Browse Code »

  Add some (configurable) expensive sanity checking to catch wrong address
  translations on x86.

  - create linux/mmdebug.h file to be able include this file in
  asm headers to not get unsolvable loops in header files
  - __phys_addr on x86_32 became a function in ioremap.c since
  PAGE_OFFSET, is_vmalloc_addr and VMALLOC_* non-constasts are undefined
  if declared in page_32.h
  - add __phys_addr_const for initializing doublefault_tss.__cr3

  Tested on 386, 386pae, x86_64 and x86_64 numa=fake=2.

  Contains Andi's enable numa virtual address debug patch.

  Signed-off-by: Jiri Slaby
  Cc: Andi Kleen
  Signed-off-by: Ingo Molnar

  Jiri Slaby

  2008-06-19 19:31:42 +0800