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Commit a22ec367 authored by Steven Whitehouse's avatar Steven Whitehouse Committed by David S. Miller
Browse files

[DECNET]: Convert rwlock to spinlock 



As per Stephen Hemminger's recent patch to ipv4/fib_semantics.c this
is the same change but for DECnet.

Signed-off-by: default avatarSteven Whitehouse <steve@chygwyn.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a8731cbf

net/decnet/dn_fib.c

+5 −5
Original line number Diff line number Diff line
@@ -59,7 +59,7 @@ extern int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb); 


static DEFINE_SPINLOCK(dn_fib_multipath_lock);

static struct dn_fib_info *dn_fib_info_list;

static DEFINE_RWLOCK(dn_fib_info_lock);

static DEFINE_SPINLOCK(dn_fib_info_lock);



static struct

{
@@ -97,7 +97,7 @@ void dn_fib_free_info(struct dn_fib_info *fi) 


void dn_fib_release_info(struct dn_fib_info *fi)

{

	write_lock(&dn_fib_info_lock);

	spin_lock(&dn_fib_info_lock);

	if (fi && --fi->fib_treeref == 0) {

		if (fi->fib_next)

			fi->fib_next->fib_prev = fi->fib_prev;
@@ -108,7 +108,7 @@ void dn_fib_release_info(struct dn_fib_info *fi) 
		fi->fib_dead = 1;

		dn_fib_info_put(fi);

	}

	write_unlock(&dn_fib_info_lock);

	spin_unlock(&dn_fib_info_lock);

}



static inline int dn_fib_nh_comp(const struct dn_fib_info *fi, const struct dn_fib_info *ofi)
@@ -379,13 +379,13 @@ struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct dn_kern_rta 


	fi->fib_treeref++;

	atomic_inc(&fi->fib_clntref);

	write_lock(&dn_fib_info_lock);

	spin_lock(&dn_fib_info_lock);

	fi->fib_next = dn_fib_info_list;

	fi->fib_prev = NULL;

	if (dn_fib_info_list)

		dn_fib_info_list->fib_prev = fi;

	dn_fib_info_list = fi;

	write_unlock(&dn_fib_info_lock);

	spin_unlock(&dn_fib_info_lock);

	return fi;



err_inval: