aboutsummaryrefslogtreecommitdiffstats
path: root/linux-2.6-xen-sparse/net/core/skbuff.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux-2.6-xen-sparse/net/core/skbuff.c')
-rw-r--r--linux-2.6-xen-sparse/net/core/skbuff.c39
1 files changed, 11 insertions, 28 deletions
diff --git a/linux-2.6-xen-sparse/net/core/skbuff.c b/linux-2.6-xen-sparse/net/core/skbuff.c
index 5a524946b0..ab4b6079e5 100644
--- a/linux-2.6-xen-sparse/net/core/skbuff.c
+++ b/linux-2.6-xen-sparse/net/core/skbuff.c
@@ -132,7 +132,6 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
* Buffers may only be allocated from interrupts using a @gfp_mask of
* %GFP_ATOMIC.
*/
-#ifndef CONFIG_HAVE_ARCH_ALLOC_SKB
struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
int fclone)
{
@@ -187,7 +186,6 @@ nodata:
skb = NULL;
goto out;
}
-#endif /* !CONFIG_HAVE_ARCH_ALLOC_SKB */
/**
* alloc_skb_from_cache - allocate a network buffer
@@ -205,18 +203,14 @@ nodata:
*/
struct sk_buff *alloc_skb_from_cache(kmem_cache_t *cp,
unsigned int size,
- gfp_t gfp_mask,
- int fclone)
+ gfp_t gfp_mask)
{
- kmem_cache_t *cache;
- struct skb_shared_info *shinfo;
struct sk_buff *skb;
u8 *data;
- cache = fclone ? skbuff_fclone_cache : skbuff_head_cache;
-
/* Get the HEAD */
- skb = kmem_cache_alloc(cache, gfp_mask & ~__GFP_DMA);
+ skb = kmem_cache_alloc(skbuff_head_cache,
+ gfp_mask & ~__GFP_DMA);
if (!skb)
goto out;
@@ -233,29 +227,18 @@ struct sk_buff *alloc_skb_from_cache(kmem_cache_t *cp,
skb->data = data;
skb->tail = data;
skb->end = data + size;
- /* make sure we initialize shinfo sequentially */
- shinfo = skb_shinfo(skb);
- atomic_set(&shinfo->dataref, 1);
- shinfo->nr_frags = 0;
- shinfo->gso_size = 0;
- shinfo->gso_segs = 0;
- shinfo->gso_type = 0;
- shinfo->ip6_frag_id = 0;
- shinfo->frag_list = NULL;
-
- if (fclone) {
- struct sk_buff *child = skb + 1;
- atomic_t *fclone_ref = (atomic_t *) (child + 1);
-
- skb->fclone = SKB_FCLONE_ORIG;
- atomic_set(fclone_ref, 1);
- child->fclone = SKB_FCLONE_UNAVAILABLE;
- }
+ atomic_set(&(skb_shinfo(skb)->dataref), 1);
+ skb_shinfo(skb)->nr_frags = 0;
+ skb_shinfo(skb)->gso_size = 0;
+ skb_shinfo(skb)->gso_segs = 0;
+ skb_shinfo(skb)->gso_type = 0;
+ skb_shinfo(skb)->ip6_frag_id = 0;
+ skb_shinfo(skb)->frag_list = NULL;
out:
return skb;
nodata:
- kmem_cache_free(cache, skb);
+ kmem_cache_free(skbuff_head_cache, skb);
skb = NULL;
goto out;
}