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[05/26] ubifs: Define UBIFS crypto context xattr

Message ID 1477054121-10198-6-git-send-email-richard@nod.at
State Accepted
Delegated to: Richard Weinberger
Headers show

Commit Message

Richard Weinberger Oct. 21, 2016, 12:48 p.m. UTC
Like ext4 UBIFS will store the crypto context in a xattr
attribute.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 fs/ubifs/ubifs-media.h | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/fs/ubifs/ubifs-media.h b/fs/ubifs/ubifs-media.h
index e24380cf46ed..d47e9569b3de 100644
--- a/fs/ubifs/ubifs-media.h
+++ b/fs/ubifs/ubifs-media.h
@@ -301,6 +301,13 @@  enum {
 #define UBIFS_MAX_NODE_SZ UBIFS_MAX_INO_NODE_SZ
 
 /*
+ * xattr name of UBIFS encryption context, we don't use a prefix
+ * nor a long name to not waste space on the flash.
+ */
+#define UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT "c"
+
+
+/*
  * On-flash inode flags.
  *
  * UBIFS_COMPR_FL: use compression for this inode