[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: Steven Whitehouse <steve@chygwyn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index 846df39..ed5fb5c 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -59,7 +59,7 @@
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_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 @@
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 @@
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: