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A better locking scheme for address spaces.

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Same shall be done for the tcb list.
This commit is contained in:
Bahadir Balban
2009-11-01 14:32:55 +02:00
parent 003976e99e
commit 83a740f597
4 changed files with 28 additions and 51 deletions
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9
include/l4/generic/space.h
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@@ -41,12 +41,7 @@ struct address_space {
struct address_space_list {
struct link list;
/* Lock for list add/removal */
struct spinlock list_lock;
/* Used when delete/creating spaces */
struct mutex ref_lock;
struct mutex lock;
int count;
};
@@ -56,8 +51,6 @@ void address_space_attach(struct ktcb *tcb, struct address_space *space);
struct address_space *address_space_find(l4id_t spid);
void address_space_add(struct address_space *space);
void address_space_remove(struct address_space *space);
void address_space_reference_lock();
void address_space_reference_unlock();
void init_address_space_list(struct address_space_list *space_list);
int check_access(unsigned long vaddr, unsigned long size,
unsigned int flags, int page_in);