From: madhuparnabhowmik04@gmail.com
To: dennis.dalessandro@intel.com, mike.marciniszyn@intel.com,
dledford@redhat.com, paulmck@kernel.org
Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org,
rcu@vger.kernel.org, joel@joelfernandes.org,
linux-kernel-mentees@lists.linuxfoundation.org
Subject: [Linux-kernel-mentees] [PATCH 2/3] infiniband: hw: qib: qib_verbs: Use built-in RCU list checking
Date: Tue, 7 Jan 2020 23:05:09 +0530 [thread overview]
Message-ID: <20200107173510.20320-2-madhuparnabhowmik04@gmail.com> (raw)
In-Reply-To: <20200107173510.20320-1-madhuparnabhowmik04@gmail.com>
From: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>
Use built-in RCU and lock checking for list_for_each_entry_rcu
by passing cond argument to it.
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>
---
drivers/infiniband/hw/qib/qib_verbs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index 33778d451b82..4dc7514ce626 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -329,7 +329,8 @@ void qib_ib_rcv(struct qib_ctxtdata *rcd, void *rhdr, void *data, u32 tlen)
if (mcast == NULL)
goto drop;
this_cpu_inc(ibp->pmastats->n_multicast_rcv);
- list_for_each_entry_rcu(p, &mcast->qp_list, list)
+ list_for_each_entry_rcu(p, &mcast->qp_list, list
+ lock_is_held(&(ibp->rvp.lock).dep_map))
qib_qp_rcv(rcd, hdr, 1, data, tlen, p->qp);
/*
* Notify rvt_multicast_detach() if it is waiting for us
--
2.17.1
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next prev parent reply other threads:[~2020-01-07 17:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-07 17:35 [Linux-kernel-mentees] [PATCH 1/3] infiniband: hw: hfi1: verbs.c: Use built-in RCU list checking madhuparnabhowmik04
2020-01-07 17:35 ` madhuparnabhowmik04 [this message]
2020-01-07 17:35 ` [Linux-kernel-mentees] [PATCH 3/3] infiniband: sw: rdmavt: mcast.c: " madhuparnabhowmik04
2020-01-07 18:26 ` [Linux-kernel-mentees] [PATCH 1/3] infiniband: hw: hfi1: verbs.c: " Jason Gunthorpe
2020-01-07 18:35 ` Madhuparna Bhowmik
2020-01-07 19:30 [Linux-kernel-mentees] [PATCH 2/3] infiniband: hw: qib: qib_verbs: " madhuparnabhowmik04
2020-01-14 16:25 madhuparnabhowmik04
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