fuse: pass open flags to read and write

[linux-2.6] / net / core / skbuff.c

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 573e1724019716767a8d8872d5c290c4337e6999..5b4ce9b4dd2060c9fd5920bfad967493b7e7eea6 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -275,12 +275,11 @@ static void skb_release_data(struct sk_buff *skb)
 /*
  *     Free an skbuff by memory without cleaning the state.
  */
-void kfree_skbmem(struct sk_buff *skb)
+static void kfree_skbmem(struct sk_buff *skb)
 {
        struct sk_buff *other;
        atomic_t *fclone_ref;
 
-       skb_release_data(skb);
        switch (skb->fclone) {
        case SKB_FCLONE_UNAVAILABLE:
                kmem_cache_free(skbuff_head_cache, skb);
@@ -307,16 +306,8 @@ void kfree_skbmem(struct sk_buff *skb)
        }
 }
 
-/**
- *     __kfree_skb - private function
- *     @skb: buffer
- *
- *     Free an sk_buff. Release anything attached to the buffer.
- *     Clean the state. This is an internal helper function. Users should
- *     always call kfree_skb
- */
-
-void __kfree_skb(struct sk_buff *skb)
+/* Free everything but the sk_buff shell. */
+static void skb_release_all(struct sk_buff *skb)
 {
        dst_release(skb->dst);
 #ifdef CONFIG_XFRM
@@ -340,7 +331,21 @@ void __kfree_skb(struct sk_buff *skb)
        skb->tc_verd = 0;
 #endif
 #endif
+       skb_release_data(skb);
+}
 
+/**
+ *     __kfree_skb - private function
+ *     @skb: buffer
+ *
+ *     Free an sk_buff. Release anything attached to the buffer.
+ *     Clean the state. This is an internal helper function. Users should
+ *     always call kfree_skb
+ */
+
+void __kfree_skb(struct sk_buff *skb)
+{
+       skb_release_all(skb);
        kfree_skbmem(skb);
 }
 
@@ -441,7 +446,7 @@ static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb)
  */
 struct sk_buff *skb_morph(struct sk_buff *dst, struct sk_buff *src)
 {
-       skb_release_data(dst);
+       skb_release_all(dst);
        return __skb_clone(dst, src);
 }
 EXPORT_SYMBOL_GPL(skb_morph);
@@ -2028,8 +2033,8 @@ void __init skb_init(void)
  *     Fill the specified scatter-gather list with mappings/pointers into a
  *     region of the buffer space attached to a socket buffer.
  */
-int
-skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
+static int
+__skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
 {
        int start = skb_headlen(skb);
        int i, copy = start - offset;
@@ -2078,7 +2083,8 @@ skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
                        if ((copy = end - offset) > 0) {
                                if (copy > len)
                                        copy = len;
-                               elt += skb_to_sgvec(list, sg+elt, offset - start, copy);
+                               elt += __skb_to_sgvec(list, sg+elt, offset - start,
+                                                     copy);
                                if ((len -= copy) == 0)
                                        return elt;
                                offset += copy;
@@ -2090,6 +2096,15 @@ skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
        return elt;
 }
 
+int skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
+{
+       int nsg = __skb_to_sgvec(skb, sg, offset, len);
+
+       sg_mark_end(&sg[nsg - 1]);
+
+       return nsg;
+}
+
 /**
  *     skb_cow_data - Check that a socket buffer's data buffers are writable
  *     @skb: The socket buffer to check.