knfsd: nfsd4: fix enc_stateid_sz for nfsd callbacks

enc_stateid_sz should be given in u32 words units, not bytes, so we were
overestimating the buffer space needed here.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 5443c52b57aa015456ec0aa407f4fb11b351c997..31d6633c7fe46345b7ec60a74caa0aa92e077d11 100644 (file)
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -75,7 +75,7 @@ enum nfs_cb_opnum4 {
 #define op_enc_sz                      1
 #define op_dec_sz                      2
 #define enc_nfs4_fh_sz                 (1 + (NFS4_FHSIZE >> 2))
-#define enc_stateid_sz                 16
+#define enc_stateid_sz                 (NFS4_STATEID_SIZE >> 2)
 #define NFS4_enc_cb_recall_sz          (cb_compound_enc_hdr_sz +       \
                                        1 + enc_stateid_sz +            \
                                        enc_nfs4_fh_sz)