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[opensm,3/4] osm_trap_rcv.c: Minimize time holding RW lock for, SystemImageGUID changed trap 145

Message ID 52D6EF87.6000705@dev.mellanox.co.il (mailing list archive)
State Accepted
Delegated to: Hal Rosenstock
Headers show

Commit Message

Hal Rosenstock Jan. 15, 2014, 8:28 p.m. UTC 
From e7c4ec39fff6c6c243ac57434eb8f8bbe6f783f8 Mon Sep 17 00:00:00 2001
From: Hal Rosenstock <hal@mellanox.com>
Date: Thu, 15 Nov 2012 18:09:57 +0200
Subject: [PATCH 3/4] osm_trap_rcv.c: Minimize time holding RW lock for
 SystemImageGUID changed trap 145

Release RW lock after updating SystemImageGUID and reacquire RO lock

Found-by: Vladimir Koushnir <vladimirk@mellanox.com>

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
---
 opensm/osm_trap_rcv.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
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Patch

diff --git a/opensm/osm_trap_rcv.c b/opensm/osm_trap_rcv.c
index 27f3e4a..2623536 100644
--- a/opensm/osm_trap_rcv.c
+++ b/opensm/osm_trap_rcv.c
@@ -566,6 +566,8 @@  static void trap_rcv_process_request(IN osm_sm_t * sm,
 				p_physp->p_node->node_info.sys_guid =
 					p_ntci->data_details.ntc_145.new_sys_guid;
 			}
+			CL_PLOCK_RELEASE(sm->p_lock);
+			CL_PLOCK_ACQUIRE(sm->p_lock);
 		} else
 			OSM_LOG(sm->p_log, OSM_LOG_ERROR,
 				"ERR 3813: No physical port found for "