Comment 29 for bug 1234718

Friday 07 February - Added Steve Capper's latest patches (written for the 3.13 kernel) to our staging 3.12 kernel. First patch of four did not apply cleanly but after a couple of tries I managed to adapt it. As written it caused the compiler to attempt to pull in an include file <asm>/perf_regs.h, which does not exist in the 3.12.9 kernel. After resolving this issue and applying all four patches successfully, attempted to build and test the resulting kernel.

Unfortunately the kernel build dies with an 'error 2' somewhere in a sub-make trying to build either fs/ext4/built-in.o or fs/built-in.o. I was unable to quickly determine the source or details of the error and consequently tabled further efforts to build with the patch. Maybe I can resume this effort after completing some other tasks needed for LCA14.