diff options
| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2014-04-07 15:38:17 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2016-12-11 13:00:51 +0100 |
| commit | 4b10f7c4be47c84e2bf91d89d1d2981db93046d0 (patch) | |
| tree | aafb28bf1f1bc6dede5fb478935edb512f794efb /Documentation/ABI | |
| parent | 6f910c187b06beacad8b85ebe154e05ab45a8cb3 (diff) | |
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>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-block-zram | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram index d67f0bb1c..2775966c2 100644 --- a/Documentation/ABI/testing/sysfs-block-zram +++ b/Documentation/ABI/testing/sysfs-block-zram @@ -64,6 +64,14 @@ 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> |