From ee16b9ff45be890eb08696898526a9373bf8e18b Mon Sep 17 00:00:00 2001 From: Jan Samek Date: Mon, 16 Aug 2021 21:22:15 +0200 Subject: [PATCH] zramctl: add zstd compression algorithm option Add information about the possible value 'zstd' for the 'zramctl --algorithm' option to 'zramctl --help' and zramctl (8) manpage. The kernel supports zram with zstd compression starting with 4.15 (see https://lore.kernel.org/lkml/20170912050005.3247-1-sergey.senozhatsky@gmail.com/#r). Signed-off-by: Jan Samek --- sys-utils/zramctl.8.adoc | 2 +- sys-utils/zramctl.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/sys-utils/zramctl.8.adoc b/sys-utils/zramctl.8.adoc index 7b684ed444..2bb4f96239 100644 --- a/sys-utils/zramctl.8.adoc +++ b/sys-utils/zramctl.8.adoc @@ -38,7 +38,7 @@ Note that _zramdev_ node specified on command line has to already exist. The com == OPTIONS -*-a*, **--algorithm lzo**|**lz4**|**lz4hc**|**deflate**|*842*:: +*-a*, **--algorithm lzo**|**lz4**|**lz4hc**|**deflate**|**842**|**zstd**:: Set the compression algorithm to be used for compressing data in the zram device. *-f*, *--find*:: diff --git a/sys-utils/zramctl.c b/sys-utils/zramctl.c index 003349fadf..e2959f2ceb 100644 --- a/sys-utils/zramctl.c +++ b/sys-utils/zramctl.c @@ -547,7 +547,7 @@ static void __attribute__((__noreturn__)) usage(void) fputs(_("Set up and control zram devices.\n"), out); fputs(USAGE_OPTIONS, out); - fputs(_(" -a, --algorithm lzo|lz4|lz4hc|deflate|842 compression algorithm to use\n"), out); + fputs(_(" -a, --algorithm lzo|lz4|lz4hc|deflate|842|zstd compression algorithm to use\n"), out); fputs(_(" -b, --bytes print sizes in bytes rather than in human readable format\n"), out); fputs(_(" -f, --find find a free device\n"), out); fputs(_(" -n, --noheadings don't print headings\n"), out); -- 2.47.2