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authorPekka Enberg <penberg@cs.helsinki.fi>2008-03-10 16:43:41 -0700
committerDavid S. Miller <davem@davemloft.net>2008-03-10 16:43:41 -0700
commit019f692ea719a2da17606511d2648b8cc1762268 (patch)
tree361999750dade856ff7dd1a5cb2ec2a06370f922 /net
parent3d89e9cf3690b4645ce73b86c219c8188f8fa50a (diff)
[NETFILTER]: nf_conntrack: replace horrible hack with ksize()
There's a horrible slab abuse in net/netfilter/nf_conntrack_extend.c that can be replaced with a call to ksize(). Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/nf_conntrack_extend.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c
index 8b9be1e978c..2bd9963b5b3 100644
--- a/net/netfilter/nf_conntrack_extend.c
+++ b/net/netfilter/nf_conntrack_extend.c
@@ -19,14 +19,6 @@
static struct nf_ct_ext_type *nf_ct_ext_types[NF_CT_EXT_NUM];
static DEFINE_MUTEX(nf_ct_ext_type_mutex);
-/* Horrible trick to figure out smallest amount worth kmallocing. */
-#define CACHE(x) (x) + 0 *
-enum {
- NF_CT_EXT_MIN_SIZE =
-#include <linux/kmalloc_sizes.h>
- 1 };
-#undef CACHE
-
void __nf_ct_ext_destroy(struct nf_conn *ct)
{
unsigned int i;
@@ -53,7 +45,7 @@ EXPORT_SYMBOL(__nf_ct_ext_destroy);
static void *
nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp)
{
- unsigned int off, len, real_len;
+ unsigned int off, len;
struct nf_ct_ext_type *t;
rcu_read_lock();
@@ -61,16 +53,14 @@ nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp)
BUG_ON(t == NULL);
off = ALIGN(sizeof(struct nf_ct_ext), t->align);
len = off + t->len;
- real_len = t->alloc_size;
rcu_read_unlock();
- *ext = kzalloc(real_len, gfp);
+ *ext = kzalloc(t->alloc_size, gfp);
if (!*ext)
return NULL;
(*ext)->offset[id] = off;
(*ext)->len = len;
- (*ext)->real_len = real_len;
return (void *)(*ext) + off;
}
@@ -95,7 +85,7 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
newlen = newoff + t->len;
rcu_read_unlock();
- if (newlen >= ct->ext->real_len) {
+ if (newlen >= ksize(ct->ext)) {
new = kmalloc(newlen, gfp);
if (!new)
return NULL;
@@ -114,7 +104,6 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
rcu_read_unlock();
}
kfree(ct->ext);
- new->real_len = newlen;
ct->ext = new;
}
@@ -156,8 +145,6 @@ static void update_alloc_size(struct nf_ct_ext_type *type)
t1->alloc_size = ALIGN(t1->alloc_size, t2->align)
+ t2->len;
}
- if (t1->alloc_size < NF_CT_EXT_MIN_SIZE)
- t1->alloc_size = NF_CT_EXT_MIN_SIZE;
}
}