linux-kernel - [PATCH 1/5] f2fs: change default compression algorithm

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Date:   Tue, 10 Mar 2020 20:50:05 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH 1/5] f2fs: change default compression algorithm

Use LZ4 as default compression algorithm, as compared to LZO, it shows
almost the same compression ratio and much better decompression speed.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index db3a63f7c769..ebffe7aa08ee 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1577,7 +1577,7 @@ static void default_options(struct f2fs_sb_info *sbi)
 	F2FS_OPTION(sbi).test_dummy_encryption = false;
 	F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
 	F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
-	F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZO;
+	F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
 	F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
 	F2FS_OPTION(sbi).compress_ext_cnt = 0;
 	F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
-- 
2.18.0.rc1