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authorJ. Bruce Fields <bfields@redhat.com>2014-01-28 16:01:04 -0500
committerJ. Bruce Fields <bfields@redhat.com>2014-03-27 16:30:59 -0400
commit4c69d5855a16f7378648c5733632628fa10431db (patch)
treefdbe4ab531191f48af6e3333907d0813a9c003fb /fs/nfsd
parentde3997a7eeb9ea286b15879fdf8a95aae065b4f7 (diff)
downloadop-kernel-dev-4c69d5855a16f7378648c5733632628fa10431db.zip
op-kernel-dev-4c69d5855a16f7378648c5733632628fa10431db.tar.gz
nfsd4: session needs room for following op to error out
Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4proc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 82189b2..b9048e5 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1359,6 +1359,12 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
/* If op is non-idempotent */
if (opdesc->op_flags & OP_MODIFIES_SOMETHING) {
plen = opdesc->op_rsize_bop(rqstp, op);
+ /*
+ * If there's still another operation, make sure
+ * we'll have space to at least encode an error:
+ */
+ if (resp->opcnt < args->opcnt)
+ plen += COMPOUND_ERR_SLACK_SPACE;
op->status = nfsd4_check_resp_size(resp, plen);
}
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