aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic/backport-5.4
diff options
context:
space:
mode:
authorRui Salvaterra <rsalvaterra@gmail.com>2021-04-05 16:45:47 +0100
committerRui Salvaterra <rsalvaterra@gmail.com>2021-04-21 10:31:07 +0100
commitc4d39c4d5f66d5c96131737f7905c96c258d82ba (patch)
tree5cbd5f36b6cd003226e30e69cafe53c0c6ee2175 /target/linux/generic/backport-5.4
parent53546c3e945f5a0a8f8c62311f48c6f21c9ab0a8 (diff)
downloadupstream-c4d39c4d5f66d5c96131737f7905c96c258d82ba.tar.gz
upstream-c4d39c4d5f66d5c96131737f7905c96c258d82ba.tar.bz2
upstream-c4d39c4d5f66d5c96131737f7905c96c258d82ba.zip
kernel: default to zstd compression in ubifs
Compared to both lzo and zlib, zstd is the best all-around performer. Backport a kernel patch [1] (to both 5.4 and 5.10), in order to set it as default for ubifs, if available. [1] https://lore.kernel.org/linux-mtd/CAFLxGvwhtRY-6kT-sN=AgjvyssHb5qdTS6WQHkhKu3YrPuTkdw@mail.gmail.com/ Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Diffstat (limited to 'target/linux/generic/backport-5.4')
-rw-r--r--target/linux/generic/backport-5.4/500-v5.13-ubifs-default-to-zstd-compression.patch25
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/500-v5.13-ubifs-default-to-zstd-compression.patch b/target/linux/generic/backport-5.4/500-v5.13-ubifs-default-to-zstd-compression.patch
new file mode 100644
index 0000000000..dd50c19c27
--- /dev/null
+++ b/target/linux/generic/backport-5.4/500-v5.13-ubifs-default-to-zstd-compression.patch
@@ -0,0 +1,25 @@
+From dcdf415b740923530dc71d89fecc8361078473f5 Mon Sep 17 00:00:00 2001
+From: Rui Salvaterra <rsalvaterra@gmail.com>
+Date: Mon, 5 Apr 2021 16:11:55 +0100
+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@gmail.com>
+---
+ fs/ubifs/sb.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- 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;
+