From: Benny Halevy <bhalevy@panasas.com>
Date: Tue, 12 Aug 2008 17:44:41 +0000 (+0300)
Subject: nfsd: fix nfsd4_encode_open buffer space reservation
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5033b77a931a12bc7395c1834fa50f6d477be3ae;p=deliverable%2Flinux.git

nfsd: fix nfsd4_encode_open buffer space reservation

nfsd4_encode_open first reservation is currently for 36 + sizeof(stateid_t)
while it writes after the stateid a cinfo (20 bytes) and 5 more 4-bytes
words, for a total of 40 + sizeof(stateid_t).

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
---

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index d7e4bd50ed3c..ace39349670a 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2133,7 +2133,7 @@ nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_op
 	if (nfserr)
 		goto out;
 
-	RESERVE_SPACE(36 + sizeof(stateid_t));
+	RESERVE_SPACE(40 + sizeof(stateid_t));
 	WRITE32(open->op_stateid.si_generation);
 	WRITEMEM(&open->op_stateid.si_opaque, sizeof(stateid_opaque_t));
 	WRITECINFO(open->op_cinfo);