[RFC PATCH v1 22/31] ARC: Page Fault handling (incl uaccess fixup)

2012-11-07 Thread Vineet Gupta
This includes recent changes to make handler "retry" and/or "killable" The killable (early exit) logic is loosely based on how SH implements it return if SIGKILL + either of VM_FAULT_OOM or VM_FAULT_RETRY which is different from Hexagon implementation which would NOT early exit for

[RFC PATCH v1 22/31] ARC: Page Fault handling (incl uaccess fixup)

2012-11-07 Thread Vineet Gupta
This includes recent changes to make handler retry and/or killable The killable (early exit) logic is loosely based on how SH implements it return if SIGKILL + either of VM_FAULT_OOM or VM_FAULT_RETRY which is different from Hexagon implementation which would NOT early exit for