On 04/12/2010 11:05 AM, Xiao Guangrong wrote:
'multimapped' and 'unsync' in 'struct kvm_mmu_page' are just indication
field, we can use flag bits instand of them
@@ -202,9 +202,10 @@ struct kvm_mmu_page {
* in this shadow page.
*/
DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS);
- int multimapped; /* More than one parent_pte? */
int root_count; /* Currently serving as active root */
- bool unsync;
+ #define MMU_PAGE_MULTIMAPPED 0x1 /* More than one parent_pte? */
+ #define MMU_PAGE_UNSYNC 0x2
+ unsigned int flags;
unsigned int unsync_children;
union {
Please just use bool for multimapped. If we grow more than 4 flags, we
can use 'bool flag : 1;' to reduce space while retaining readability.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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