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| author | Tiger Yang <tiger.yang@oracle.com> | 2008-08-18 17:11:46 +0800 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-10-13 16:57:03 -0700 |
| commit | 8154da3d2114241cf3edb108b43e2172be86d483 (patch) | |
| tree | a6d1c1652469d9a34b50dbdab4a435376bf3f32c /fs/ocfs2/ocfs2_fs.h | |
| parent | a394425643e1e9c3a624d629fc8ba5633d8474c6 (diff) | |
| download | lwn-8154da3d2114241cf3edb108b43e2172be86d483.tar.gz lwn-8154da3d2114241cf3edb108b43e2172be86d483.zip | |
ocfs2: Add incompatible flag for extended attribute
This patch adds the s_incompat flag for extended attribute support. This
helps us ensure that older versions of Ocfs2 or ocfs2-tools will not be able
to mount a volume with xattr support.
Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/ocfs2_fs.h')
| -rw-r--r-- | fs/ocfs2/ocfs2_fs.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index 8d5e72f2c5cf..f24ce3d3f956 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -91,7 +91,8 @@ | OCFS2_FEATURE_INCOMPAT_SPARSE_ALLOC \ | OCFS2_FEATURE_INCOMPAT_INLINE_DATA \ | OCFS2_FEATURE_INCOMPAT_EXTENDED_SLOT_MAP \ - | OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK) + | OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK \ + | OCFS2_FEATURE_INCOMPAT_XATTR) #define OCFS2_FEATURE_RO_COMPAT_SUPP OCFS2_FEATURE_RO_COMPAT_UNWRITTEN /* @@ -128,10 +129,6 @@ /* Support for data packed into inode blocks */ #define OCFS2_FEATURE_INCOMPAT_INLINE_DATA 0x0040 -/* Support for the extended slot map */ -#define OCFS2_FEATURE_INCOMPAT_EXTENDED_SLOT_MAP 0x100 - - /* * Support for alternate, userspace cluster stacks. If set, the superblock * field s_cluster_info contains a tag for the alternate stack in use as @@ -143,6 +140,12 @@ */ #define OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK 0x0080 +/* Support for the extended slot map */ +#define OCFS2_FEATURE_INCOMPAT_EXTENDED_SLOT_MAP 0x100 + +/* Support for extended attributes */ +#define OCFS2_FEATURE_INCOMPAT_XATTR 0x0200 + /* * backup superblock flag is used to indicate that this volume * has backup superblocks. @@ -578,7 +581,11 @@ struct ocfs2_super_block { /*A0*/ struct ocfs2_cluster_info s_cluster_info; /* Selected userspace stack. Only valid with INCOMPAT flag. */ -/*B8*/ __le64 s_reserved2[17]; /* Fill out superblock */ +/*B8*/ __le16 s_xattr_inline_size; /* extended attribute inline size + for this fs*/ + __le16 s_reserved0; + __le32 s_reserved1; +/*C0*/ __le64 s_reserved2[16]; /* Fill out superblock */ /*140*/ /* |