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| author | Sergey Senozhatsky <sergey.senozhatsky@gmail.com> | 2014-04-07 15:38:17 -0700 |
|---|---|---|
| committer | Simon Shields <keepcalm444@gmail.com> | 2016-06-12 21:20:03 +1000 |
| commit | 6182c0174a8829fc3bbdf78d9afd5b3927d3691d (patch) | |
| tree | 1cb75788cb18327df06aafdf61c4720afbe92ea4 /Documentation/ABI | |
| parent | e6e0680d6346a62f42724e15a193eb5d5a23be0d (diff) | |
| download | kernel_samsung_smdk4412-6182c0174a8829fc3bbdf78d9afd5b3927d3691d.zip kernel_samsung_smdk4412-6182c0174a8829fc3bbdf78d9afd5b3927d3691d.tar.gz kernel_samsung_smdk4412-6182c0174a8829fc3bbdf78d9afd5b3927d3691d.tar.bz2 | |
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 9fe4c51..4cba43c 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> |