diff options
Diffstat (limited to 'target/linux/generic/pending-4.14/553-ubifs-Add-option-to-create-UBI-FS-version-4-on-empty.patch')
| -rw-r--r-- | target/linux/generic/pending-4.14/553-ubifs-Add-option-to-create-UBI-FS-version-4-on-empty.patch | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/target/linux/generic/pending-4.14/553-ubifs-Add-option-to-create-UBI-FS-version-4-on-empty.patch b/target/linux/generic/pending-4.14/553-ubifs-Add-option-to-create-UBI-FS-version-4-on-empty.patch deleted file mode 100644 index 4b413996f2..0000000000 --- a/target/linux/generic/pending-4.14/553-ubifs-Add-option-to-create-UBI-FS-version-4-on-empty.patch +++ /dev/null @@ -1,63 +0,0 @@ -From 93c33e6a7f3b0aef99d02252e6232a3d8b80f2d5 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Sun, 21 Jan 2018 15:47:50 +0100 -Subject: ubifs: Add option to create UBI FS version 4 on empty UBI volume - -Instead of creating an ubifs file system with format version 5 by -default on empty UBI volumes add a compile option to create an older ubi -with file system format version 4 instated. This allows it to be mount -as a volume on kernel versions < 4.10, which does not support format -version 5. -We saw that some people can not access their older data when they -downgraded from kernel 4.14 to kernel 4.9 to prevent this this option -would help. - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - fs/ubifs/Kconfig | 13 +++++++++++++ - fs/ubifs/sb.c | 6 ++++++ - 2 files changed, 19 insertions(+) - ---- a/fs/ubifs/Kconfig -+++ b/fs/ubifs/Kconfig -@@ -74,3 +74,16 @@ config UBIFS_FS_SECURITY - the extended attribute support in advance. - - If you are not using a security module, say N. -+ -+config UBIFS_FS_FORMAT4 -+ bool "Use file system format version 4 for new file systems" -+ depends on UBIFS_FS -+ help -+ Instead of creating new file systems with the new ubifs file -+ system version 5, use the old format version 4 for implicitly -+ by the driver created file systems on an empty UBI volume. This -+ makes it possible to mount these file systems also with kernel -+ versions before 4.10. The driver will still support file system -+ format version 5 for ubifs file systems created with version 5. -+ -+ If you are unsure, say N. ---- a/fs/ubifs/sb.c -+++ b/fs/ubifs/sb.c -@@ -176,7 +176,9 @@ static int create_default_filesystem(str - tmp64 = (long long)max_buds * c->leb_size; - if (big_lpt) - sup_flags |= UBIFS_FLG_BIGLPT; -+#ifndef CONFIG_UBIFS_FS_FORMAT4 - sup_flags |= UBIFS_FLG_DOUBLE_HASH; -+#endif - - sup->ch.node_type = UBIFS_SB_NODE; - sup->key_hash = UBIFS_KEY_HASH_R5; -@@ -192,7 +194,11 @@ static int create_default_filesystem(str - sup->jhead_cnt = cpu_to_le32(DEFAULT_JHEADS_CNT); - sup->fanout = cpu_to_le32(DEFAULT_FANOUT); - sup->lsave_cnt = cpu_to_le32(c->lsave_cnt); -+#ifdef CONFIG_UBIFS_FS_FORMAT4 -+ sup->fmt_version = cpu_to_le32(4); -+#else - sup->fmt_version = cpu_to_le32(UBIFS_FORMAT_VERSION); -+#endif - sup->time_gran = cpu_to_le32(DEFAULT_TIME_GRAN); - if (c->mount_opts.override_compr) - sup->default_compr = cpu_to_le16(c->mount_opts.compr_type); |