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Removed non-standard allocation of mm0 utcb.

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It is now allocated in a generic way using shm_new() which creates a
posix shmat()/shmget()'able utcb.
This commit is contained in:
Bahadir Balban
2008-03-24 00:46:31 +00:00
parent 35d2d275b6
commit 13b9e5407a
2 changed files with 14 additions and 32 deletions
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17
tasks/mm0/src/task.c
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@@ -94,6 +94,7 @@ struct tcb *task_create(struct task_ids *ids)
int task_mmap_regions(struct tcb *task, struct vm_file *file)
{
int err;
struct vm_file *shm;
/*
* mmap each task's physical image to task's address space.
@@ -124,14 +125,19 @@ int task_mmap_regions(struct tcb *task, struct vm_file *file)
return err;
}
/* Task's utcb */
task->utcb = utcb_vaddr_new();
/* Create a shared memory segment available for shmat() */
if (IS_ERR(shm = shm_new((key_t)task->utcb, __pfn(DEFAULT_UTCB_SIZE))))
return (int)shm;
return 0;
}
int task_setup_regions(struct vm_file *file, struct tcb *task,
unsigned long task_start, unsigned long task_end)
{
struct vm_file *shm;
/*
* Set task's main address space boundaries. Not all tasks
* run in the default user boundaries, e.g. mm0 pager.
@@ -159,13 +165,6 @@ int task_setup_regions(struct vm_file *file, struct tcb *task,
task->map_start = task->data_end;
task->map_end = task->stack_start;
/* Task's utcb */
task->utcb = utcb_vaddr_new();
/* Create a shared memory segment available for shmat() */
if (IS_ERR(shm = shm_new((key_t)task->utcb, __pfn(DEFAULT_UTCB_SIZE))))
return (int)shm;
return 0;
}