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-rw-r--r--fs/nfs/nfs4_fs.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 2122748f6f7c..326463651921 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -583,6 +583,12 @@ 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_match_or_older(const nfs4_stateid *dst, const nfs4_stateid *src)
+{
+ return nfs4_stateid_match_other(dst, src) &&
+ !(src->seqid && nfs4_stateid_is_newer(dst, src));
+}
+
static inline void nfs4_stateid_seqid_inc(nfs4_stateid *s1)
{
u32 seqid = be32_to_cpu(s1->seqid);