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Forks and COW situations show that we need vm objects rather than vm_files.

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This is the first commit towards implementing vm object based paging with
right COW methods.
This commit is contained in:
Bahadir Balban
2008-03-03 22:05:01 +00:00
parent e2e6c89da2
commit 58b833dd7f
11 changed files with 272 additions and 139 deletions
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12
tasks/mm0/include/proc.h
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@@ -1,13 +1,15 @@
#ifndef __MM0_PROC__
#define __MM0_PROC__
#include <vm_area.h>
struct proc_files {
struct vm_file *stackfile; /* ZI, private, devzero, then autogenerated */
struct vm_file *envfile; /* NON-ZI, private, autogenerated, then autogenerated */
struct vm_file *datafile; /* NON-ZI, private, real file, then autogenerated */
struct vm_file *bssfile; /* ZI private, devzero, then autogenerated */
struct vm_object *stack_file; /* ZI, RO: devzero, RW: private */
struct vm_object *env_file; /* NON-ZI, RO: private, RW: private */
struct vm_object *data_file; /* NON-ZI, RO: shared, RW: private */
struct vm_object *bss_file; /* ZI, RO: devzero, RW: private */
};
int task_prepare_procfiles(struct tcb *t);
int task_setup_vm_objects(struct tcb *t);
#endif