]> git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/commit
zram: make compression algorithm selection possible
authorSergey Senozhatsky <sergey.senozhatsky@gmail.com>
Mon, 7 Apr 2014 22:38:17 +0000 (15:38 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 7 Apr 2014 23:36:01 +0000 (16:36 -0700)
commite46b8a030d76d3c94156c545c3f4c3676d813435
tree9629389f89d3086a6428ec6a8e47bc59ddfcf3ec
parentfe8eb122c82b2049c460fc6df6e8583a2f935cff
zram: make compression algorithm selection possible

Add and document `comp_algorithm' device attribute.  This attribute allows
to show supported compression and currently selected compression
algorithms:

cat /sys/block/zram0/comp_algorithm
[lzo] lz4

and change selected compression algorithm:
echo lzo > /sys/block/zram0/comp_algorithm

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/ABI/testing/sysfs-block-zram
Documentation/blockdev/zram.txt
drivers/block/zram/zcomp.c
drivers/block/zram/zcomp.h
drivers/block/zram/zram_drv.c
drivers/block/zram/zram_drv.h