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More progress on copy_on_write().

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Copying phase is OK. Now writing the shadow collapse logic.
This commit is contained in:
Bahadir Balban
2008-03-09 00:19:55 +00:00
parent 7a54d722a7
commit ed23d82fd7
3 changed files with 194 additions and 59 deletions
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3
tasks/mm0/include/vm_area.h
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@@ -113,7 +113,7 @@ struct vm_object {
int shadow_refcnt; /* Number of shadows that refer */
struct list_head shadows; /* List of vm objects that shadow this one */
struct vm_object *orig_obj; /* Original object that this one shadows */
unsigned int type; /* Defines the type of the object */
unsigned int flags; /* Defines the type and flags of the object */
struct list_head list; /* List of all vm objects in memory */
struct vm_pager *pager; /* The pager for this object */
struct list_head page_cache; /* List of in-memory pages */
@@ -129,7 +129,6 @@ struct vm_file {
void *priv_data; /* Device pagers use to access device info */
};
/* To create per-vma vm_object lists */
struct vma_obj_link {
struct list_head list;