dlm: verify that places expecting rcom_lock have packet long enough
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Teigland <teigland@redhat.com>
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 75176b5..6c605fc 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -4266,6 +4266,7 @@
return NULL;
}
+/* needs at least dlm_rcom + rcom_lock */
static int receive_rcom_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
struct dlm_rsb *r, struct dlm_rcom *rc)
{
@@ -4315,6 +4316,7 @@
the given values and send back our lkid. We send back our lkid by sending
back the rcom_lock struct we got but with the remid field filled in. */
+/* needs at least dlm_rcom + rcom_lock */
int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
{
struct rcom_lock *rl = (struct rcom_lock *) rc->rc_buf;
@@ -4370,6 +4372,7 @@
return error;
}
+/* needs at least dlm_rcom + rcom_lock */
int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
{
struct rcom_lock *rl = (struct rcom_lock *) rc->rc_buf;
