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-rw-r--r--include/linux/skbuff.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f15d5b62539b..920eb6413fee 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -533,6 +533,13 @@ enum {
struct ubuf_info {
void (*callback)(struct sk_buff *, struct ubuf_info *,
bool zerocopy_success);
+ refcount_t refcnt;
+ u8 flags;
+};
+
+struct ubuf_info_msgzc {
+ struct ubuf_info ubuf;
+
union {
struct {
unsigned long desc;
@@ -545,8 +552,6 @@ struct ubuf_info {
u32 bytelen;
};
};
- refcount_t refcnt;
- u8 flags;
struct mmpin {
struct user_struct *user;
@@ -555,6 +560,8 @@ struct ubuf_info {
};
#define skb_uarg(SKB) ((struct ubuf_info *)(skb_shinfo(SKB)->destructor_arg))
+#define uarg_to_msgzc(ubuf_ptr) container_of((ubuf_ptr), struct ubuf_info_msgzc, \
+ ubuf)
int mm_account_pinned_pages(struct mmpin *mmp, size_t size);
void mm_unaccount_pinned_pages(struct mmpin *mmp);