writeback fix for 3.1-rc4

Hi Linus,

Please pull one writeback fix for Linux 3.1-rc4:

git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback.git urgent-for-linus

It fixes 30% writeback regression on: JBOD setup + very slow random writes.

Wu Fengguang (1):
squeeze max-pause area and drop pass-good area

 include/linux/writeback.h |   11 -----------
 mm/page-writeback.c       |   15 ++-------------
 2 files changed, 2 insertions(+), 24 deletions(-)

Thanks,
Fengguang