[Xen-devel] [patch] double incrementing l2tab

[Scott Parish <srparish@xxxxxxxxxx>]

For PAE, l2e_get_phys() will look something like this:

  #define l2e_get_phys(_x)          ((((u64)(_x).l2_hi & 0x0f) << 32)  |\ 
                                      ((u64)(_x).l2_lo & PAGE_MASK)) 

Thus l2e_get_phys(++foo) is not safe, as the increment will be evaluated
multiple times and at undefined times.

sRp

-- 
Scott Parish
Signed-off-by: srparish@xxxxxxxxxx

Attachment: double-inc.diff
Description: Text document

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel