From 02a5e0acb3cb85d80d0fe834e366d38a92bbaa22 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Sat, 11 Aug 2007 22:34:32 +0200
Subject: [PATCH] BLOCK: Hide the contents of linux/bio.h if CONFIG_BLOCK=n

Hide the contents of linux/bio.h if CONFIG_BLOCK=n as there shouldn't be
compiled code that uses it.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 include/linux/bio.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 4d85262b4fa..1ddef34f43c 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -24,6 +24,8 @@
 #include <linux/mempool.h>
 #include <linux/ioprio.h>
 
+#ifdef CONFIG_BLOCK
+
 /* Platforms may set this to teach the BIO layer about IOMMU hardware. */
 #include <asm/io.h>
 
@@ -361,4 +363,5 @@ static inline char *__bio_kmap_irq(struct bio *bio, unsigned short idx,
 	__bio_kmap_irq((bio), (bio)->bi_idx, (flags))
 #define bio_kunmap_irq(buf,flags)	__bio_kunmap_irq(buf, flags)
 
+#endif /* CONFIG_BLOCK */
 #endif /* __LINUX_BIO_H */
-- 
2.41.1