Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

[firefly-linux-kernel-4.4.55.git] / include / linux / skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 821c7f45d2a7357085c757c2309177e443b34990..b8292d8cc9fa6238ed0691194f714f827cabd058 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -500,7 +500,7 @@ struct sk_buff {
        union {
                __u32           mark;
                __u32           dropcount;
-               __u32           avail_size;
+               __u32           reserved_tailroom;
        };
 
        sk_buff_data_t          inner_transport_header;
@@ -1288,11 +1288,13 @@ static inline void __skb_fill_page_desc(struct sk_buff *skb, int i,
         * do not lose pfmemalloc information as the pages would not be
         * allocated using __GFP_MEMALLOC.
         */
-       if (page->pfmemalloc && !page->mapping)
-               skb->pfmemalloc = true;
        frag->page.p              = page;
        frag->page_offset         = off;
        skb_frag_size_set(frag, size);
+
+       page = compound_head(page);
+       if (page->pfmemalloc && !page->mapping)
+               skb->pfmemalloc = true;
 }
 
 /**
@@ -1447,7 +1449,10 @@ static inline int skb_tailroom(const struct sk_buff *skb)
  */
 static inline int skb_availroom(const struct sk_buff *skb)
 {
-       return skb_is_nonlinear(skb) ? 0 : skb->avail_size - skb->len;
+       if (skb_is_nonlinear(skb))
+               return 0;
+
+       return skb->end - skb->tail - skb->reserved_tailroom;
 }
 
 /**
@@ -2638,6 +2643,13 @@ static inline void nf_reset(struct sk_buff *skb)
 #endif
 }
 
+static inline void nf_reset_trace(struct sk_buff *skb)
+{
+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
+       skb->nf_trace = 0;
+#endif
+}
+
 /* Note: This doesn't put any conntrack and bridge info in dst. */
 static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
 {