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Make _vm_map_init() the one place where the vm map's pmap field is

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initialized.

Reviewed by:	kib
This commit is contained in:
Alan Cox 2010-04-03 19:07:05 +00:00
parent a54dd632ab
commit 92351f162e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=206142
3 changed files with 12 additions and 13 deletions
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5
sys/kern/init_main.c
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@ -510,9 +510,8 @@ proc0_init(void *dummy __unused)
* proc0 is not expected to enter usermode, so there is no special
* handling for sv_minuser here, like is done for exec_new_vmspace().
*/
vm_map_init(&vmspace0.vm_map, p->p_sysent->sv_minuser,
p->p_sysent->sv_maxuser);
vmspace0.vm_map.pmap = vmspace_pmap(&vmspace0);
vm_map_init(&vmspace0.vm_map, vmspace_pmap(&vmspace0),
p->p_sysent->sv_minuser, p->p_sysent->sv_maxuser);
/*-
* call the init and ctor for the new thread and proc

18
sys/vm/vm_map.c
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@ -126,7 +126,8 @@ static int vmspace_zinit(void *mem, int size, int flags);
static void vmspace_zfini(void *mem, int size);
static int vm_map_zinit(void *mem, int ize, int flags);
static void vm_map_zfini(void *mem, int size);
static void _vm_map_init(vm_map_t map, vm_offset_t min, vm_offset_t max);
static void _vm_map_init(vm_map_t map, pmap_t pmap, vm_offset_t min,
vm_offset_t max);
static void vm_map_entry_dispose(vm_map_t map, vm_map_entry_t entry);
#ifdef INVARIANTS
static void vm_map_zdtor(void *mem, int size, void *arg);
@ -281,8 +282,7 @@ vmspace_alloc(min, max)
return (NULL);
}
CTR1(KTR_VM, "vmspace_alloc: %p", vm);
_vm_map_init(&vm->vm_map, min, max);
vm->vm_map.pmap = vmspace_pmap(vm); /* XXX */
_vm_map_init(&vm->vm_map, vmspace_pmap(vm), min, max);
vm->vm_refcnt = 1;
vm->vm_shm = NULL;
vm->vm_swrss = 0;
@ -678,23 +678,22 @@ vm_map_create(pmap_t pmap, vm_offset_t min, vm_offset_t max)
result = uma_zalloc(mapzone, M_WAITOK);
CTR1(KTR_VM, "vm_map_create: %p", result);
_vm_map_init(result, min, max);
result->pmap = pmap;
_vm_map_init(result, pmap, min, max);
return (result);
}
/*
* Initialize an existing vm_map structure
* such as that in the vmspace structure.
* The pmap is set elsewhere.
*/
static void
_vm_map_init(vm_map_t map, vm_offset_t min, vm_offset_t max)
_vm_map_init(vm_map_t map, pmap_t pmap, vm_offset_t min, vm_offset_t max)
{
map->header.next = map->header.prev = &map->header;
map->needs_wakeup = FALSE;
map->system_map = 0;
map->pmap = pmap;
map->min_offset = min;
map->max_offset = max;
map->flags = 0;
@ -704,9 +703,10 @@ _vm_map_init(vm_map_t map, vm_offset_t min, vm_offset_t max)
}
void
vm_map_init(vm_map_t map, vm_offset_t min, vm_offset_t max)
vm_map_init(vm_map_t map, pmap_t pmap, vm_offset_t min, vm_offset_t max)
{
_vm_map_init(map, min, max);
_vm_map_init(map, pmap, min, max);
mtx_init(&map->system_mtx, "system map", NULL, MTX_DEF | MTX_DUPOK);
sx_init(&map->lock, "user map");
}

2
sys/vm/vm_map.h
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@ -346,7 +346,7 @@ int vm_map_fixed(vm_map_t, vm_object_t, vm_ooffset_t, vm_offset_t, vm_size_t,
vm_prot_t, vm_prot_t, int);
int vm_map_findspace (vm_map_t, vm_offset_t, vm_size_t, vm_offset_t *);
int vm_map_inherit (vm_map_t, vm_offset_t, vm_offset_t, vm_inherit_t);
void vm_map_init (struct vm_map *, vm_offset_t, vm_offset_t);
void vm_map_init(vm_map_t, pmap_t, vm_offset_t, vm_offset_t);
int vm_map_insert (vm_map_t, vm_object_t, vm_ooffset_t, vm_offset_t, vm_offset_t, vm_prot_t, vm_prot_t, int);
int vm_map_lookup (vm_map_t *, vm_offset_t, vm_prot_t, vm_map_entry_t *, vm_object_t *,
vm_pindex_t *, vm_prot_t *, boolean_t *);