Linux Kernel 4.2 RC1发布

Linux Kernel 4.2-RC1 发布：

主要改进：

• HID: wacom: Add support for DTU-1141

• gfs2: handle NULL rgd in set_rgrp_preferences
  

• gfs2: fix quota updates on block boundaries
  

• gfs2: limit quota log messages
  

• gfs2: s64 cast for negative quota value
  

• gfs2: Don't support fallocate on jdata    files
  

• ARM: dts: sun7i: Add dts file for pcDuino 3 Nano board

• fs: ext3: super: fixed a space coding style issue

• powercap / RAPL: Floor frequency setting in Atom SoC