linux-ext4 - [PATCH] ext4: Reserve xattr index for Rich ACL support

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Date:	Wed,  6 Feb 2013 13:53:31 +0100
From:	Jan Kara <jack@...e.cz>
To:	Ted Tso <tytso@....edu>
Cc:	linux-ext4@...r.kernel.org, jeffm@...e.de, Jan Kara <jack@...e.cz>
Subject: [PATCH] ext4: Reserve xattr index for Rich ACL support

SUSE is carrying out of tree patches for Rich ACL support for ext4 as
they didn't get upstream due to opposition of some VFS maintainers.
Reserve xattr index for Rich ACLs so that it cannot be taken by anything
else which would force users to backup and reset their Rich ACLs on
files.

Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/ext4/xattr.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
index 69eda78..7955773 100644
--- a/fs/ext4/xattr.h
+++ b/fs/ext4/xattr.h
@@ -22,6 +22,7 @@
 #define	EXT4_XATTR_INDEX_LUSTRE			5
 #define EXT4_XATTR_INDEX_SECURITY	        6
 #define EXT4_XATTR_INDEX_SYSTEM			7
+#define EXT4_XATTR_INDEX_RICHACL		8
 
 struct ext4_xattr_header {
 	__le32	h_magic;	/* magic number for identification */
-- 
1.7.1

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