[GIT PULL] Important ARC fixes for 4.0

Hi Linus, We found some issues with signal handling taking down the system. I know its late, but these are important and all marked for stable. Please pull. Thx, -Vineet ---> The following changes since commit bc465aa9d045feb0e13b4a8f32cc33c1943f62d6: Linux 4.0-rc5

[GIT PULL] Important ARC fixes for 4.0

Hi Linus, We found some issues with signal handling taking down the system. I know its late, but these are important and all marked for stable. Please pull. Thx, -Vineet --- The following changes since commit bc465aa9d045feb0e13b4a8f32cc33c1943f62d6: Linux 4.0-rc5