1. 18 Oct, 2005 10 commits
  2. 17 Oct, 2005 18 commits
  3. 16 Oct, 2005 2 commits
    • Linus Torvalds's avatar
      Fix memory ordering bug in page reclaim · 3d80636a
      Linus Torvalds authored
      
      
      As noticed by Nick Piggin, we need to make sure that we check the page
      count before we check for PageDirty, since the dirty check is only valid
      if the count implies that we're the only possible ones holding the page.
      
      We always did do this, but the code needs a read-memory-barrier to make
      sure that the orderign is also honored by the CPU.
      
      (The writer side is ordered due to the atomic decrement and test on the
      page count, see the discussion on linux-kernel)
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      3d80636a
    • Al Viro's avatar
      [PATCH]: highest_possible_processor_id() has to be a macro · 688ce17b
      Al Viro authored
      
      
      	... otherwise, things like alpha and sparc64 break and break
      badly.  They define cpu_possible_map to something else in smp.h
      *AFTER* having included cpumask.h.
      
      	If that puppy is a macro, expansion will happen at the actual
      caller, when we'd already seen #define cpu_possible_map ... and we will
      get the right thing used.
      
      	As an inline helper it will be tokenized before we get to that
      define and that's it; no matter what we define later, it won't affect
      anything.  We get modules with dependency on cpu_possible_map instead
      of the right symbol (phys_cpu_present_map in case of sparc64), or outright
      link errors if they are built-in.
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      688ce17b
  4. 15 Oct, 2005 1 commit
  5. 14 Oct, 2005 9 commits