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From: madhuparnabhowmik04@gmail.com
To: dennis.dalessandro@intel.com, mike.marciniszyn@intel.com,
	dledford@redhat.com, paulmck@kernel.org
Cc: rcu@vger.kernel.org, joel@joelfernandes.org, frextrite@gmail.com,
	linux-kernel-mentees@lists.linuxfoundation.org,
	linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org,
	Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>
Subject: [PATCH 1/3] infiniband: hw: hfi1: verbs.c: Use built-in RCU list checking
Date: Tue,  7 Jan 2020 23:05:08 +0530
Message-ID: <20200107173510.20320-1-madhuparnabhowmik04@gmail.com> (raw)

From: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>

list_for_each_entry_rcu has built-in RCU and lock checking.
Pass cond argument to list_for_each_entry_rcu.

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>
---
 drivers/infiniband/hw/hfi1/verbs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 089e201d7550..cab2ff185240 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -515,7 +515,8 @@ static inline void hfi1_handle_packet(struct hfi1_packet *packet,
 				       opa_get_lid(packet->dlid, 9B));
 		if (!mcast)
 			goto drop;
-		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)) {
 			packet->qp = p->qp;
 			if (hfi1_do_pkey_check(packet))
 				goto drop;
-- 
2.17.1


             reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-07 17:35 madhuparnabhowmik04 [this message]
2020-01-07 17:35 ` [PATCH 2/3] infiniband: hw: qib: qib_verbs: " madhuparnabhowmik04
2020-01-07 17:35 ` [PATCH 3/3] infiniband: sw: rdmavt: mcast.c: " madhuparnabhowmik04
2020-01-07 18:26 ` [PATCH 1/3] infiniband: hw: hfi1: verbs.c: " Jason Gunthorpe
2020-01-07 19:29 madhuparnabhowmik04
2020-01-07 20:33 ` Jason Gunthorpe
2020-01-09 18:10   ` Jason Gunthorpe
2020-01-10 15:54   ` Joel Fernandes
2020-01-14 16:23 madhuparnabhowmik04
2020-01-14 16:57 ` Jason Gunthorpe
2020-01-14 17:00   ` Dennis Dalessandro
2020-01-14 18:24     ` Dennis Dalessandro
2020-01-14 19:17       ` Joel Fernandes
2020-01-14 19:41       ` Jason Gunthorpe
2020-01-14 19:46         ` Dennis Dalessandro
     [not found]       ` <CAF65HP0RsW5FMRRf5Lia2=MTKex-KwO7-_NsCUef94YKBg+pfA@mail.gmail.com>
2020-02-14 17:24         ` Dennis Dalessandro

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