zram模块化

driver:
--- Block devices                                                                                                                │ │
  │ │                                                           <*>   Compressed RAM block device support                                                                                        │ │
  │ │                                                           [*]     Enable LZ4 algorithm support                                                                                             │ │
  │ │                                                           [ ]     Compressed RAM block device debug support                                                                                │ │
  │ │                                                           <*>   Loopback device support                                                                                                    │ │
  │ │                                                           (2)     Number of loop devices to pre-create at init time                                                                        │ │
  │ │                                                           < >     Cryptoloop Support                                                                                                       │ │
  │ │                                                           < >   DRBD Distributed Replicated Block Device support                                                                           │ │
  │ │                                                           < >   Network block device support                                                                                               │ │
  │ │                                                           <*>   RAM block device support                                                                                                   │ │
  │ │                                                           (4)     Default number of RAM disks                                                                                              │ │
  │ │                                                           (8192)  Default RAM disk size (kbytes)                                                                                           │ │
  │ │                                                           [ ]     Support XIP filesystems on RAM block device                                                                              │ │
  │ │                                                           < >   Packet writing on CD/DVD media                                                                                             │ │
  │ │                                                           < >   ATA over Ethernet support                                                                                                  │ │
  │ │                                                           [ ]   Very old hard disk (MFM/RLL/IDE) driver                                                                                    │ │
  │ │                                                           < >   Rados block device (RBD)  
  

Building modules, stage 2.
MODPOST 26 modules
CC      drivers/block/brd.mod.o
LD [M]  drivers/block/brd.ko
CC      drivers/block/zram/zram.mod.o
LD [M]  drivers/block/zram/zram.ko
LD [M]  drivers/mtd/devices/ingenic_sfc_v2/jz_sfc.ko
LD [M]  fs/jffs2/jffs2.ko
LD [M]  fs/lockd/lockd.ko
LD [M]  fs/nfs/nfs.ko
LD [M]  fs/nfs/nfsv2.ko
LD [M]  fs/nfs/nfsv3.ko
LD [M]  fs/squashfs/squashfs.ko
CC      lib/lz4/lz4_compress.mod.o
LD [M]  lib/lz4/lz4_compress.ko
CC      lib/lz4/lz4_decompress.mod.o
LD [M]  lib/lz4/lz4_decompress.ko
LD [M]  net/sunrpc/sunrpc.ko

insmod /lib/modules/lz4_compress.ko
insmod /lib/modules/lz4_decompress.ko
insmod /lib/modules/brd.ko
insmod /lib/modules/zram.ko

echo 100 > /proc/sys/vm/swappiness
echo 16777216 > /sys/block/zram0/disksize
mkswap /dev/zram0                                  //创建交互分区
swapon /dev/zram0                                  //启用交互分区