linux-kernel - [PATCH] ubifs: default to zstd compression

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Message-Id: <20210405152935.148129-1-rsalvaterra@gmail.com>
Date:   Mon,  5 Apr 2021 16:29:35 +0100
From:   Rui Salvaterra <rsalvaterra@...il.com>
To:     richard@....at
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rui Salvaterra <rsalvaterra@...il.com>
Subject: [PATCH] ubifs: default to zstd compression

Compared to lzo and zlib, zstd is the best all-around performer, both in terms
of speed and compression ratio. Set it as the default, if available.

Signed-off-by: Rui Salvaterra <rsalvaterra@...il.com>
---
 fs/ubifs/sb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index c160f718c288..e7693b94e5b5 100644
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -53,6 +53,9 @@
 
 static int get_default_compressor(struct ubifs_info *c)
 {
+	if (ubifs_compr_present(c, UBIFS_COMPR_ZSTD))
+		return UBIFS_COMPR_ZSTD;
+
 	if (ubifs_compr_present(c, UBIFS_COMPR_LZO))
 		return UBIFS_COMPR_LZO;
 
-- 
2.31.1