[PATCH] uml ubd driver: use bitfields where possible

Use bitfields for boolean fields in ubd data structure.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index eed95dc..3e3bb22 100644 (file)
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -174,8 +174,8 @@ struct ubd {
        __u64 size;
        struct openflags boot_openflags;
        struct openflags openflags;
-       int shared;
-       int no_cow;
+       unsigned shared:1;
+       unsigned no_cow:1;
        struct cow cow;
        struct platform_device pdev;
 };