X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=fs%2Fnfs%2Fnfs4_fs.h;h=065cb04222a1bb117e7c3e0f9f5d96a2490f4b43;hb=b97d4c424e362ebf88fd9aa1b7ad82e3a28c26d3;hp=0c9505dc852cd67225ede055bf0f7f18c55b25ca;hpb=4b4193256c8d3bc3a5397b5cd9494c2ad386317d;p=linux-2.6-microblaze.git

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 0c9505dc852c..065cb04222a1 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -599,6 +599,14 @@ static inline bool nfs4_stateid_is_newer(const nfs4_stateid *s1, const nfs4_stat
 	return (s32)(be32_to_cpu(s1->seqid) - be32_to_cpu(s2->seqid)) > 0;
 }
 
+static inline bool nfs4_stateid_is_next(const nfs4_stateid *s1, const nfs4_stateid *s2)
+{
+	u32 seq1 = be32_to_cpu(s1->seqid);
+	u32 seq2 = be32_to_cpu(s2->seqid);
+
+	return seq2 == seq1 + 1U || (seq2 == 1U && seq1 == 0xffffffffU);
+}
+
 static inline bool nfs4_stateid_match_or_older(const nfs4_stateid *dst, const nfs4_stateid *src)
 {
 	return nfs4_stateid_match_other(dst, src) &&