From: Hal Rosenstock <hal-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
To: "linux-rdma
(linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org)"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: [PATCH opensm 3/4] osm_trap_rcv.c: Minimize time holding RW lock for, SystemImageGUID changed trap 145
Date: Wed, 15 Jan 2014 15:28:55 -0500 [thread overview]
Message-ID: <52D6EF87.6000705@dev.mellanox.co.il> (raw)
>From e7c4ec39fff6c6c243ac57434eb8f8bbe6f783f8 Mon Sep 17 00:00:00 2001
From: Hal Rosenstock <hal-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
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-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Hal Rosenstock <hal-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
opensm/osm_trap_rcv.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
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 "
--
1.7.8.2
--
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reply other threads:[~2014-01-15 20:28 UTC|newest]
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