diff options
| author | Maksym Planeta <mcsim.planeta@gmail.com> | 2012-10-08 15:16:13 +0300 |
|---|---|---|
| committer | Maksym Planeta <mcsim.planeta@gmail.com> | 2012-10-08 15:16:13 +0300 |
| commit | 6a08b518a60bd0e9448278f88f6f55681a5b9c6c (patch) | |
| tree | 459b4077663475b39aadce1e9ab407379e21c400 /vm/vm_map.h | |
| parent | c3d905cfb9486eb1d2887fe8167f038c57fa0bb6 (diff) | |
Add memory advice attribute to memory object and entry.
* include/mach/vm_advice.h: New file with some definitions used for making
memory advice.
(vm_advice_t): Enumeration that is used to denote memory advice.
(VM_ADVICE_MAX_READAHEAD): New macro, that denotes maximal size of cluster
to be read.
(struct vm_advice_entry): Structure that keeps number of pages to be read
before and after the page where fault occurred for some specific memory
advice.
* Makefrag.am (include_mach_HEADERS): Add file vm_advice.h.
* include/mach/mach_types.h: Include header mach/vm_advice.h.
* vm/vm_map.h: Include mach/vm_advice.h.
(struct vm_map_entry): Add advice to map entry attributes.
* vm/vm_map.c (vm_map_find_entry): Add advice to new entry template.
(vm_map_enter): Likewise.
* vm/vm_object.h: Include mach/vm_advice.h.
(struct vm_object): Add advice to memory object attributes.
* vm/vm_object.c (vm_object_bootstrap): Add advice to object template.
Diffstat (limited to 'vm/vm_map.h')
| -rw-r--r-- | vm/vm_map.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/vm/vm_map.h b/vm/vm_map.h index d5bcf96b..af7588ba 100644 --- a/vm/vm_map.h +++ b/vm/vm_map.h @@ -46,6 +46,7 @@ #include <mach/vm_attributes.h> #include <mach/vm_prot.h> #include <mach/vm_inherit.h> +#include <mach/vm_advice.h> #include <vm/pmap.h> #include <vm/vm_object.h> #include <vm/vm_page.h> @@ -118,6 +119,7 @@ struct vm_map_entry { vm_prot_t protection; /* protection code */ vm_prot_t max_protection; /* maximum protection */ vm_inherit_t inheritance; /* inheritance */ + vm_advice_t advice; /* advice */ unsigned short wired_count; /* can be paged if = 0 */ unsigned short user_wired_count; /* for vm_wire */ struct vm_map_entry *projected_on; /* 0 for normal map entry |