SLUB Memory Allocator with slight improvement
Reduce vfs_cache_pressure to 20
Tweaking vm dirty ratios
Improve SD speed
introduce some memory copy macros and functions&&improve the performance of memcpy and memmove of the general version
crc32: add slicing by 8
vmalloc.c: Backport from Linux Kernel 3.4
vmstat: Backport from 3.4.4
mm: Updated shmem to Linux Kernel 3.3-rc3
mm: Update page_alloc to Linux 3.4.4
mm: page-writeback -> Update to Linux Kernel 3.1.10
	修改：      include/linux/freezer.h
	修改：      include/linux/oom.h
	修改：      include/trace/events/writeback.h
	修改：      mm/oom_kill.c
mm: oom_kill updated to 3.4.4
Add some missing file