From: ftillier <ftillier@ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86>
Date: Fri, 29 Jul 2005 00:17:08 +0000 (+0000)
Subject: Optimized locking in SA request send path
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=ef5ed61ad1c5e5b980f495cadc159eb801fcc8aa;p=~shefty%2Frdma-win.git

Optimized locking in SA request send path


git-svn-id: svn://openib.tc.cornell.edu/gen1@44 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86
---

diff --git a/trunk/core/al/kernel/al_proxy_subnet.c b/trunk/core/al/kernel/al_proxy_subnet.c
index 73eddb1a..df7d86d8 100644
--- a/trunk/core/al/kernel/al_proxy_subnet.c
+++ b/trunk/core/al/kernel/al_proxy_subnet.c
@@ -258,9 +258,11 @@ proxy_send_sa_req(
 		goto proxy_send_sa_req_err1;
 	}
 
+	/* Synchronize with callbacks. */
+	cl_spinlock_acquire( &p_context->h_al->obj.lock );
+
 	/* Track the request. */
-	hdl =
-		al_hdl_lock_insert( p_context->h_al, p_sa_req, AL_OBJ_TYPE_H_SA_REQ );
+	hdl = al_hdl_insert( p_context->h_al, p_sa_req, AL_OBJ_TYPE_H_SA_REQ );
 	if( hdl == AL_INVALID_HANDLE )
 	{
 		ib_status = IB_INSUFFICIENT_MEMORY;
@@ -281,9 +283,6 @@ proxy_send_sa_req(
 
 	p_ioctl->in.sa_req.p_attr = p_ioctl->in.attr;
 
-	/* Synchronize with callbacks. */
-	cl_spinlock_acquire( &p_context->h_al->obj.lock );
-
 	/*
 	 * We never pass the user-mode flag when sending SA requests - the
 	 * I/O manager will perform all synchronization to make this IRP sync