1. 22 Dec, 2006 39 commits
  2. 21 Dec, 2006 1 commit
    • Andrew Morton's avatar
      [PATCH] truncate: clear page dirtiness before running try_to_free_buffers() · 3e67c098
      Andrew Morton authored
      truncate presently invalidates the dirty page's buffer_heads then shoots down
      the page.  But try_to_free_buffers() will now bale out because the page is
      dirty.
      
      Net effect: the LRU gets filled with dirty pages which have invalidated
      buffer_heads attached.  They have no ->mapping and hence cannot be cleaned.
      The machine leaks memory at an enormous rate.
      
      Fix this by cleaning the page before running try_to_free_buffers(), so
      try_to_free_buffers() can do its work.
      
      Also, remember to do dirty-page-acoounting in cancel_dirty_page() so the
      machine won't wedge up trying to write non-existent dirty pages.
      
      Probably still wrong, but now less so.
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      3e67c098