rv = -ETIMEDOUT;
}
+ if (rv == -DLM_ECANCEL && (lkb->lkb_flags & DLM_IFL_DEADLOCK_CANCEL)) {
+ lkb->lkb_flags &= ~DLM_IFL_DEADLOCK_CANCEL;
+ rv = -EDEADLK;
+ }
+
lkb->lkb_lksb->sb_status = rv;
lkb->lkb_lksb->sb_flags = lkb->lkb_sbflags;
{
struct dlm_ls *ls = lkb->lkb_resource->res_ls;
- if (is_master_copy(lkb))
+ if (is_master_copy(lkb)) {
+ lkb->lkb_timestamp = jiffies;
return;
-
- if (lkb->lkb_exflags & DLM_LKF_TIMEOUT)
- goto add_it;
+ }
if (test_bit(LSFL_TIMEWARN, &ls->ls_flags) &&
!(lkb->lkb_exflags & DLM_LKF_NODLCKWT)) {
lkb->lkb_flags |= DLM_IFL_WATCH_TIMEWARN;
goto add_it;
}
+ if (lkb->lkb_exflags & DLM_LKF_TIMEOUT)
+ goto add_it;
return;
add_it:
pass into lowcomms_commit and a message buffer (mb) that we
write our data into */
- mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, GFP_KERNEL, &mb);
+ mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, ls->ls_allocation, &mb);
if (!mh)
return -ENOBUFS;
case -DLM_ECANCEL:
receive_flags_reply(lkb, ms);
revert_lock_pc(r, lkb);
- if (ms->m_result)
- queue_cast(r, lkb, -DLM_ECANCEL);
+ queue_cast(r, lkb, -DLM_ECANCEL);
break;
case 0:
break;
return error;
}
+int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid)
+{
+ struct dlm_lkb *lkb;
+ struct dlm_args args;
+ struct dlm_user_args *ua;
+ struct dlm_rsb *r;
+ int error;
+
+ dlm_lock_recovery(ls);
+
+ error = find_lkb(ls, lkid, &lkb);
+ if (error)
+ goto out;
+
+ ua = (struct dlm_user_args *)lkb->lkb_astparam;
+
+ error = set_unlock_args(flags, ua, &args);
+ if (error)
+ goto out_put;
+
+ /* same as cancel_lock(), but set DEADLOCK_CANCEL after lock_rsb */
+
+ r = lkb->lkb_resource;
+ hold_rsb(r);
+ lock_rsb(r);
+
+ error = validate_unlock_args(lkb, &args);
+ if (error)
+ goto out_r;
+ lkb->lkb_flags |= DLM_IFL_DEADLOCK_CANCEL;
+
+ error = _cancel_lock(r, lkb);
+ out_r:
+ unlock_rsb(r);
+ put_rsb(r);
+
+ if (error == -DLM_ECANCEL)
+ error = 0;
+ /* from validate_unlock_args() */
+ if (error == -EBUSY)
+ error = 0;
+ out_put:
+ dlm_put_lkb(lkb);
+ out:
+ dlm_unlock_recovery(ls);
+ return error;
+}
+
/* lkb's that are removed from the waiters list by revert are just left on the
orphans list with the granted orphan locks, to be freed by purge */
lkb = del_proc_lock(ls, proc);
if (!lkb)
break;
+ del_timeout(lkb);
if (lkb->lkb_exflags & DLM_LKF_PERSISTENT)
orphan_proc_lock(ls, lkb);
else