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>
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 4d85262..1ddef34 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 @@
__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 */