[PATCH] severing skbuff.h -> highmem.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 22 insertions, 1 deletions

diff --git a/net/core/kmap_skb.h b/net/core/kmap_skb.h
new file mode 100644
index 000000000000..283c2b993fb8
--- /dev/null
+++ b/net/core/kmap_skb.h
@@ -0,0 +1,19 @@
+#include <linux/highmem.h>
+
+static inline void *kmap_skb_frag(const skb_frag_t *frag)
+{
+#ifdef CONFIG_HIGHMEM
+        BUG_ON(in_irq());
+
+        local_bh_disable();
+#endif
+        return kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ);
+}
+
+static inline void kunmap_skb_frag(void *vaddr)
+{
+        kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
+#ifdef CONFIG_HIGHMEM
+        local_bh_enable();
+#endif
+}
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index a90bc439488e..8e1c385e5ba9 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -56,7 +56,6 @@
 #include <linux/cache.h>
 #include <linux/rtnetlink.h>
 #include <linux/init.h>
-#include <linux/highmem.h>
 
 #include <net/protocol.h>
 #include <net/dst.h>
@@ -67,6 +66,8 @@
 #include <asm/uaccess.h>
 #include <asm/system.h>
 
+#include "kmap_skb.h"
+
 static kmem_cache_t *skbuff_head_cache __read_mostly;
 static kmem_cache_t *skbuff_fclone_cache __read_mostly;
 
diff --git a/net/core/sock.c b/net/core/sock.c
index ab8fafadb4ba..419c7d3289c7 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -111,6 +111,7 @@
 #include <linux/poll.h>
 #include <linux/tcp.h>
 #include <linux/init.h>
+#include <linux/highmem.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>