diff options
Diffstat (limited to 'target/linux/generic/backport-4.19/500-v4.20-ubifs-Fix-default-compression-selection-in-ubifs.patch')
| -rw-r--r-- | target/linux/generic/backport-4.19/500-v4.20-ubifs-Fix-default-compression-selection-in-ubifs.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.19/500-v4.20-ubifs-Fix-default-compression-selection-in-ubifs.patch b/target/linux/generic/backport-4.19/500-v4.20-ubifs-Fix-default-compression-selection-in-ubifs.patch new file mode 100644 index 0000000000..7bd3ed9fad --- /dev/null +++ b/target/linux/generic/backport-4.19/500-v4.20-ubifs-Fix-default-compression-selection-in-ubifs.patch @@ -0,0 +1,46 @@ +From d62e98ed1efcaa94caa004f622944afdce5f1c3c Mon Sep 17 00:00:00 2001 +From: Gabor Juhos <juhosg@openwrt.org> +Date: Sun, 9 Dec 2018 18:12:13 +0100 +Subject: [PATCH] ubifs: Fix default compression selection in ubifs + +When ubifs is build without the LZO compressor and no compressor is +given the creation of the default file system will fail. before +selection the LZO compressor check if it is present and if not fall back +to the zlib or none. + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +Signed-off-by: Richard Weinberger <richard@nod.at> +--- + fs/ubifs/sb.c | 13 ++++++++++++- + 1 file changed, 12 insertions(+), 1 deletion(-) + +--- a/fs/ubifs/sb.c ++++ b/fs/ubifs/sb.c +@@ -63,6 +63,17 @@ + /* Default time granularity in nanoseconds */ + #define DEFAULT_TIME_GRAN 1000000000 + ++static int get_default_compressor(struct ubifs_info *c) ++{ ++ if (ubifs_compr_present(c, UBIFS_COMPR_LZO)) ++ return UBIFS_COMPR_LZO; ++ ++ if (ubifs_compr_present(c, UBIFS_COMPR_ZLIB)) ++ return UBIFS_COMPR_ZLIB; ++ ++ return UBIFS_COMPR_NONE; ++} ++ + /** + * create_default_filesystem - format empty UBI volume. + * @c: UBIFS file-system description object +@@ -186,7 +197,7 @@ static int create_default_filesystem(str + if (c->mount_opts.override_compr) + sup->default_compr = cpu_to_le16(c->mount_opts.compr_type); + else +- sup->default_compr = cpu_to_le16(UBIFS_COMPR_LZO); ++ sup->default_compr = cpu_to_le16(get_default_compressor(c)); + + generate_random_uuid(sup->uuid); + |