From a1f8e7f7fb9d7e2cbcb53170edca7c0ac4680697 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 19 Oct 2006 16:08:53 -0400
Subject: [PATCH] severing skbuff.h -> highmem.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 net/core/kmap_skb.h | 19 +++++++++++++++++++
 net/core/skbuff.c   |  3 ++-
 net/core/sock.c     |  1 +
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 net/core/kmap_skb.h

(limited to 'net/core')

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>
-- 
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