zram: support compaction
authorMinchan Kim <minchan@kernel.org>
Wed, 15 Apr 2015 23:15:36 +0000 (16:15 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 15 Apr 2015 23:35:21 +0000 (16:35 -0700)
commit4e3ba87845420e0bfa21e6c4f7f81897aed38f8c
treeb0eeb240f26c4edee1e298fe2ed384fb8ca0c6f4
parentd3d07c92ff69f784bb8c3279fa87678bfa2f7f6f
zram: support compaction

Now that zsmalloc supports compaction, zram can use it.  For the first
step, this patch exports compact knob via sysfs so user can do compaction
via "echo 1 > /sys/block/zram0/compact".

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Gunho Lee <gunho.lee@lge.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/ABI/testing/sysfs-block-zram
drivers/block/zram/zram_drv.c
drivers/block/zram/zram_drv.h