ceph: fix connection fault con_work reentrancy problem

The messenger fault was clearing the BUSY bit, for reasons unclear.  This
made it possible for the con->ops->fault function to reopen the connection,
and requeue work in the workqueue--even though the current thread was
already in con_work.

This avoids a problem where the client busy loops with connection failures
on an unreachable OSD, but doesn't address the root cause of that problem.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-03-18 15:20:53 -07:00
parent e4cb4cb8a0
commit 3c3f2e32ef

View file

@ -1836,8 +1836,6 @@ static void ceph_fault(struct ceph_connection *con)
goto out;
}
clear_bit(BUSY, &con->state); /* to avoid an improbable race */
mutex_lock(&con->mutex);
if (test_bit(CLOSED, &con->state))
goto out_unlock;