xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

zram: make compression algorithm selection possible

Browse Source 
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>
This commit is contained in:
Sergey Senozhatsky
2014-04-07 15:38:17 -07:00
committed by Linus Torvalds
parent fe8eb122c8
commit e46b8a030d
6 changed files with 93 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/ABI/testing/sysfs-block-zram
View File

@@ -65,6 +65,14 @@ Description:
number of backend's zcomp_strm compression streams (number of
concurrent compress operations).
What: /sys/block/zram<id>/comp_algorithm
Date: February 2014
Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
The comp_algorithm file is read-write and lets to show
available and selected compression algorithms, change
compression algorithm selection.
What: /sys/block/zram<id>/notify_free
Date: August 2010
Contact: Nitin Gupta <ngupta@vflare.org>