NLM: Ensure that nlmclnt_cancel_callback() doesn't loop forever
authorTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 1 Feb 2006 17:18:25 +0000 (12:18 -0500)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 1 Feb 2006 17:52:23 +0000 (12:52 -0500)
commitaaaa99423b4b1f9cfd33ea5643d9274c25f62491
treedba6fb715156d9bc8fdf0ff57d9151e67fc1322c
parent16fb24252a8170799e7adf14d8fc31b817fcaf53
NLM: Ensure that nlmclnt_cancel_callback() doesn't loop forever

 If the server returns NLM_LCK_DENIED_NOLOCKS, we currently retry the
 entire NLM_CANCEL request. This may end up looping forever unless the
 server changes its mind (why would it do that, though?).

 Ensure that we limit the number of retries (to 3).

 See bug# 5957 in bugzilla.kernel.org.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
fs/lockd/clntproc.c
include/linux/lockd/lockd.h