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Subject[PATCH] (2/8) Eliminate brlock for packet_type
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Date
Replace linked list for packet_type with brlock with list macros and RCU.

diff -urN -X dontdiff linux-2.5.64/net/8021q/vlan.c linux-2.5-nobrlock/net/8021q/vlan.c
--- linux-2.5.64/net/8021q/vlan.c 2003-03-11 09:08:01.000000000 -0800
+++ linux-2.5-nobrlock/net/8021q/vlan.c 2003-03-11 14:31:28.000000000 -0800
@@ -29,7 +29,6 @@
#include <net/p8022.h>
#include <net/arp.h>
#include <linux/rtnetlink.h>
-#include <linux/brlock.h>
#include <linux/notifier.h>

#include <linux/if_vlan.h>
@@ -68,7 +67,6 @@
.dev =NULL,
.func = vlan_skb_recv, /* VLAN receive method */
.data = (void *)(-1), /* Set here '(void *)1' when this code can SHARE SKBs */
- .next = NULL
};

/* End of global variables definitions. */
@@ -231,9 +229,10 @@
real_dev->vlan_rx_kill_vid(real_dev, vlan_id);
}

- br_write_lock(BR_NETPROTO_LOCK);
grp->vlan_devices[vlan_id] = NULL;
- br_write_unlock(BR_NETPROTO_LOCK);
+
+ /* wait for RCU in network receive */
+ synchronize_kernel();


/* Caller unregisters (and if necessary, puts)
diff -urN -X dontdiff linux-2.5.64/net/8021q/vlan_dev.c linux-2.5-nobrlock/net/8021q/vlan_dev.c
--- linux-2.5.64/net/8021q/vlan_dev.c 2003-03-11 09:08:01.000000000 -0800
+++ linux-2.5-nobrlock/net/8021q/vlan_dev.c 2003-03-10 15:49:52.000000000 -0800
@@ -31,7 +31,6 @@
#include <net/datalink.h>
#include <net/p8022.h>
#include <net/arp.h>
-#include <linux/brlock.h>

#include "vlan.h"
#include "vlanproc.h"


-
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