direct-io.hg

diff linux-2.6-xen-sparse/include/xen/features.h @ 8731:0e87a5bd6e8b

Unpack xen_features into an array of u8 'booleans'

This allows us to avoid including bitops.h all over the tree as well
as avoiding any potential endianness issues in the future.

Use __read_mostly on the xen_features array now that the tree is based
on a version of Linux which supports it.

Also export xen_features for use in modules.

Signed-off-by: Ian Campbell <Ian.Campbell@XenSource.com>
author Ian.Campbell@xensource.com
date Wed Feb 01 20:11:18 2006 +0000 (2006-02-01)
parents fd9b2c1bb577
children
line diff
     1.1 --- a/linux-2.6-xen-sparse/include/xen/features.h	Wed Feb 01 18:00:19 2006 +0000
     1.2 +++ b/linux-2.6-xen-sparse/include/xen/features.h	Wed Feb 01 20:11:18 2006 +0000
     1.3 @@ -13,8 +13,8 @@
     1.4  
     1.5  extern void setup_xen_features(void);
     1.6  
     1.7 -extern unsigned long xen_features[XENFEAT_NR_SUBMAPS];
     1.8 +extern u8 xen_features[XENFEAT_NR_SUBMAPS * 32];
     1.9  
    1.10 -#define xen_feature(flag)	(test_bit(flag, xen_features))
    1.11 +#define xen_feature(flag)	(xen_features[flag])
    1.12  
    1.13  #endif /* __ASM_XEN_FEATURES_H__ */