From 6d92b201035dfe77426f8814fd5259db385a18b3 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Wed, 8 Apr 2020 19:56:32 +0800 Subject: f2fs: compress: support lzo-rle compress algorithm LZO-RLE extension (run length encoding) was introduced to improve performance of LZO algorithm in scenario of data contains many zeros, zram has changed to use this extended algorithm by default, this patch adds to support this algorithm extension, to enable this extension, it needs to enable F2FS_FS_LZO and F2FS_FS_LZORLE config, and specifies "compress_algorithm=lzo-rle" mountoption. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- Documentation/filesystems/f2fs.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/filesystems/f2fs.rst') diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 87d794bc75a4..96e3f89d7aba 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -244,7 +244,7 @@ checkpoint=%s[:%u[%]] Set to "disable" to turn off checkpointing. Set to "enabl would be unusable can be viewed at /sys/fs/f2fs//unusable This space is reclaimed once checkpoint=enable. compress_algorithm=%s Control compress algorithm, currently f2fs supports "lzo", - "lz4" and "zstd" algorithm. + "lz4", "zstd" and "lzo-rle" algorithm. compress_log_size=%u Support configuring compress cluster size, the size will be 4KB * (1 << %u), 16KB is minimum size, also it's default size. -- cgit v1.2.3