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authorRichard Weinberger <richard@nod.at>2016-10-19 23:46:39 +0200
committerRichard Weinberger <richard@nod.at>2016-12-12 23:07:38 +0100
commitfc4b891bbefa73b496bb44b076bb5274b6bfba68 (patch)
tree9ba963d538c16866a148dea20c426b89b815d4c6 /fs/ubifs/ubifs-media.h
parente021986ee4119e487febb9a5f077ec77dff85865 (diff)
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ubifs: Raise write version to 5
Starting with version 5 the following properties change: - UBIFS_FLG_DOUBLE_HASH is mandatory - UBIFS_FLG_ENCRYPTION is optional but depdens on UBIFS_FLG_DOUBLE_HASH - Filesystems with unknown super block flags will be rejected, this allows us in future to add new features without raising the UBIFS write version. Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/ubifs-media.h')
-rw-r--r--fs/ubifs/ubifs-media.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ubifs/ubifs-media.h b/fs/ubifs/ubifs-media.h
index bdc7935a5e41..e8c23c9d4f4a 100644
--- a/fs/ubifs/ubifs-media.h
+++ b/fs/ubifs/ubifs-media.h
@@ -46,7 +46,7 @@
* UBIFS went into mainline kernel with format version 4. The older formats
* were development formats.
*/
-#define UBIFS_FORMAT_VERSION 4
+#define UBIFS_FORMAT_VERSION 5
/*
* Read-only compatibility version. If the UBIFS format is changed, older UBIFS
@@ -429,6 +429,8 @@ enum {
UBIFS_FLG_ENCRYPTION = 0x10,
};
+#define UBIFS_FLG_MASK (UBIFS_FLG_BIGLPT|UBIFS_FLG_SPACE_FIXUP|UBIFS_FLG_DOUBLE_HASH|UBIFS_FLG_ENCRYPTION)
+
/**
* struct ubifs_ch - common header node.
* @magic: UBIFS node magic number (%UBIFS_NODE_MAGIC)