vm.h File Reference

#include <machine/vm.h>

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Data Structures
struct	kva_md_info

Macros
#define	VM_INHERIT_SHARE   ((vm_inherit_t) 0)
#define	VM_INHERIT_COPY   ((vm_inherit_t) 1)
#define	VM_INHERIT_NONE   ((vm_inherit_t) 2)
#define	VM_INHERIT_ZERO   ((vm_inherit_t) 3)
#define	VM_INHERIT_DEFAULT   VM_INHERIT_COPY
#define	VM_PROT_NONE   ((vm_prot_t) 0x00)
#define	VM_PROT_READ   ((vm_prot_t) 0x01)
#define	VM_PROT_WRITE   ((vm_prot_t) 0x02)
#define	VM_PROT_EXECUTE   ((vm_prot_t) 0x04)
#define	VM_PROT_COPY   ((vm_prot_t) 0x08) /* copy-on-read */
#define	VM_PROT_PRIV_FLAG   ((vm_prot_t) 0x10)
#define	VM_PROT_FAULT_LOOKUP   VM_PROT_PRIV_FLAG
#define	VM_PROT_QUICK_NOFAULT   VM_PROT_PRIV_FLAG /* same to save bits */
#define	VM_PROT_ALL   (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE)
#define	VM_PROT_RW   (VM_PROT_READ|VM_PROT_WRITE)
#define	VM_PROT_DEFAULT   VM_PROT_ALL
#define	VA_IS_CLEANMAP(va)    ((va) >= kmi.clean_sva && (va) < kmi.clean_eva)

Typedefs
typedef char	vm_inherit_t
typedef u_char	vm_prot_t
typedef u_char	objtype_t
typedef union vm_map_object	vm_map_object_t
typedef struct vm_map_entry *	vm_map_entry_t
typedef struct vm_map *	vm_map_t
typedef struct vm_object *	vm_object_t
typedef struct vm_reserv *	vm_reserv_t

Enumerations
enum	obj_type {   OBJT_DEFAULT , OBJT_SWAP , OBJT_VNODE , OBJT_DEVICE ,   OBJT_PHYS , OBJT_DEAD , OBJT_SG , OBJT_MGTDEVICE ,   OBJT_FIRST_DYN }

Functions
void	vm_ksubmap_init (struct kva_md_info *)
bool	swap_reserve (vm_ooffset_t incr)
bool	swap_reserve_by_cred (vm_ooffset_t incr, struct ucred *cred)
void	swap_reserve_force (vm_ooffset_t incr)
void	swap_release (vm_ooffset_t decr)
void	swap_release_by_cred (vm_ooffset_t decr, struct ucred *cred)
void	swapper (void)

Variables
struct kva_md_info	kmi
int	old_mlock
int	vm_ndomains

Macro Definition Documentation

VA_IS_CLEANMAP

#define VA_IS_CLEANMAP

(

va

)

((va) >= kmi.clean_sva && (va) < kmi.clean_eva)

Definition at line 157 of file vm.h.

VM_INHERIT_COPY

#define VM_INHERIT_COPY   ((vm_inherit_t) 1)

Definition at line 71 of file vm.h.

VM_INHERIT_DEFAULT

#define VM_INHERIT_DEFAULT   VM_INHERIT_COPY

Definition at line 74 of file vm.h.

VM_INHERIT_NONE

#define VM_INHERIT_NONE   ((vm_inherit_t) 2)

Definition at line 72 of file vm.h.

VM_INHERIT_SHARE

#define VM_INHERIT_SHARE   ((vm_inherit_t) 0)

Definition at line 70 of file vm.h.

VM_INHERIT_ZERO

#define VM_INHERIT_ZERO   ((vm_inherit_t) 3)

Definition at line 73 of file vm.h.

VM_PROT_ALL

#define VM_PROT_ALL   (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE)

Definition at line 87 of file vm.h.

VM_PROT_COPY

#define VM_PROT_COPY   ((vm_prot_t) 0x08) /* copy-on-read */

Definition at line 82 of file vm.h.

VM_PROT_DEFAULT

#define VM_PROT_DEFAULT   VM_PROT_ALL

Definition at line 89 of file vm.h.

VM_PROT_EXECUTE

#define VM_PROT_EXECUTE   ((vm_prot_t) 0x04)

Definition at line 81 of file vm.h.

VM_PROT_FAULT_LOOKUP

#define VM_PROT_FAULT_LOOKUP   VM_PROT_PRIV_FLAG

Definition at line 84 of file vm.h.

VM_PROT_NONE

#define VM_PROT_NONE   ((vm_prot_t) 0x00)

Definition at line 78 of file vm.h.

VM_PROT_PRIV_FLAG

#define VM_PROT_PRIV_FLAG   ((vm_prot_t) 0x10)

Definition at line 83 of file vm.h.

VM_PROT_QUICK_NOFAULT

#define VM_PROT_QUICK_NOFAULT   VM_PROT_PRIV_FLAG /* same to save bits */

Definition at line 85 of file vm.h.

VM_PROT_READ

#define VM_PROT_READ   ((vm_prot_t) 0x01)

Definition at line 79 of file vm.h.

VM_PROT_RW

#define VM_PROT_RW   (VM_PROT_READ|VM_PROT_WRITE)

Definition at line 88 of file vm.h.

VM_PROT_WRITE

#define VM_PROT_WRITE   ((vm_prot_t) 0x02)

Definition at line 80 of file vm.h.

Typedef Documentation

objtype_t

typedef u_char objtype_t

Definition at line 102 of file vm.h.

vm_inherit_t

typedef char vm_inherit_t

Definition at line 68 of file vm.h.

vm_map_entry_t

typedef struct vm_map_entry* vm_map_entry_t

Definition at line 108 of file vm.h.

vm_map_object_t

typedef union vm_map_object vm_map_object_t

Definition at line 105 of file vm.h.

vm_map_t

typedef struct vm_map* vm_map_t

Definition at line 111 of file vm.h.

vm_object_t

typedef struct vm_object* vm_object_t

Definition at line 114 of file vm.h.

vm_prot_t

typedef u_char vm_prot_t

Definition at line 76 of file vm.h.

vm_reserv_t

typedef struct vm_reserv* vm_reserv_t

Definition at line 144 of file vm.h.

Enumeration Type Documentation

obj_type

enum obj_type

Enumerator
OBJT_DEFAULT
OBJT_SWAP
OBJT_VNODE
OBJT_DEVICE
OBJT_PHYS
OBJT_DEAD
OBJT_SG
OBJT_MGTDEVICE
OBJT_FIRST_DYN

Definition at line 91 of file vm.h.

Function Documentation

swap_release()

void swap_release

(

vm_ooffset_t

decr

)

Definition at line 346 of file swap_pager.c.

References swap_release_by_cred().

Referenced by kmap_alloc_wait().

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swap_release_by_cred()

void swap_release_by_cred	(	vm_ooffset_t	decr,
		struct ucred *	cred
	)

Definition at line 357 of file swap_pager.c.

References swap_release_by_cred_rlimit().

Referenced by swap_release(), vm_map_lookup(), and vm_object_destroy().

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swap_reserve()

bool swap_reserve

(

vm_ooffset_t

incr

)

Definition at line 255 of file swap_pager.c.

References swap_reserve_by_cred().

Referenced by kmap_alloc_wait(), vm_map_insert(), and vm_map_protect().

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swap_reserve_by_cred()

bool swap_reserve_by_cred	(	vm_ooffset_t	incr,
		struct ucred *	cred
	)

Definition at line 262 of file swap_pager.c.

References SWAP_RESERVE_ALLOW_NONWIRED, swap_reserve_by_cred_rlimit(), SWAP_RESERVE_FORCE_ON, and vm_cnt.

Referenced by default_pager_alloc(), swap_pager_init_object(), swap_reserve(), vm_map_lookup(), and vm_object_coalesce().

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swap_reserve_force()

void swap_reserve_force

(

vm_ooffset_t

incr

)

Definition at line 326 of file swap_pager.c.

References swap_reserve_force_rlimit().

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swapper()

void swapper

(

void

)

Definition at line 745 of file vm_swapout.c.

References faultin(), SWAPIN_INTERVAL, swapper_selector(), and swapper_wkilled_only().

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vm_ksubmap_init()

void vm_ksubmap_init

(

struct kva_md_info *

kmi

)

Definition at line 151 of file vm_init.c.

References buffer_arena, kva_md_info::buffer_eva, kva_md_info::buffer_sva, kva_md_info::clean_eva, kva_md_info::clean_sva, exec_map, exec_map_entries, exec_map_entry_size, kernel_map, kmem_alloc_attr(), kmem_malloc(), kmem_subinit(), kmi, kva_alloc(), physmem, pipe_map, transient_arena, vm_map_max(), and vm_map_min().

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Variable Documentation

kmi

struct kva_md_info kmi

extern

Referenced by vm_ksubmap_init().

old_mlock

int old_mlock

extern

Definition at line 101 of file vm_mmap.c.

Referenced by kern_break(), kern_mmap_racct_check(), and sys_mlockall().

vm_ndomains

int vm_ndomains

extern

Definition at line 81 of file vm_phys.c.

Referenced by _vm_phys_create_seg(), bucket_cache_reclaim(), cache_drain_safe_cpu(), debug_uma_reclaim_domain(), get_pageout_threads_per_domain(), keg_alloc_slab(), keg_ctor(), keg_drain(), keg_dtor(), keg_first_slab(), kmem_back(), kmem_init(), sysctl_vm_pdpages(), sysctl_vm_phys_free(), sysctl_vm_zone_stats(), uma_startup1(), uma_vm_zone_stats(), uma_zalloc_domain(), uma_zone_memory(), uma_zone_set_maxcache(), vm_free_count(), vm_page_domain(), vm_page_init_cache_zones(), vm_page_pqbatch_drain(), vm_page_startup(), vm_pageout(), vm_pageout_init(), vm_pageout_mightbe_oom(), vm_pagequeue_count(), vm_phys_alloc_freelist_pages(), vm_phys_alloc_npages(), vm_phys_domain(), vm_phys_domain_match(), vm_phys_early_alloc(), vm_phys_init(), vm_phys_mem_affinity(), vm_phys_register_domains(), vm_stats_init(), vm_thread_stack_back(), zone_alloc_sysctl(), zone_ctor(), zone_domain_highest(), zone_domain_lowest(), zone_dtor(), zone_free_bucket(), zone_import(), and zone_timeout().