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authorTiger Yang <tiger.yang@oracle.com>2008-08-18 17:11:46 +0800
committerMark Fasheh <mfasheh@suse.com>2008-10-13 16:57:03 -0700
commit8154da3d2114241cf3edb108b43e2172be86d483 (patch)
treea6d1c1652469d9a34b50dbdab4a435376bf3f32c /fs/ocfs2/ocfs2.h
parenta394425643e1e9c3a624d629fc8ba5633d8474c6 (diff)
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.h')
-rw-r--r--fs/ocfs2/ocfs2.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index cae0dd4b7f7..6d3c10ddf48 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -363,6 +363,13 @@ static inline int ocfs2_supports_inline_data(struct ocfs2_super *osb)
return 0;
}
+static inline int ocfs2_supports_xattr(struct ocfs2_super *osb)
+{
+ if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)
+ return 1;
+ return 0;
+}
+
/* set / clear functions because cluster events can make these happen
* in parallel so we want the transitions to be atomic. this also
* means that any future flags osb_flags must be protected by spinlock