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Introduced new B_KERNEL_AREA_FLAGS and B_USER_AREA_FLAGS that can be used

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instead B_KERNEL_PROTECTION and B_USER_PROTECTION.
Unlike before, B_USER_CLONEABLE_AREA is now only in B_KERNEL_AREA_FLAGS,
but no longer in B_KERNEL_PROTECTION. This fixes a couple of problems
when B_USER_CLONEABLE_AREA was defined without specifing read/write
access.
PAGE_PRESENT|MODIFIED|ACCESSED are in the same "namespace" as the
protection flags, and therefore, shouldn't overlap.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12154 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-03-30 06:34:17 +00:00
parent 9602a1c9d6
commit 9f90fa0e3a
2 changed files with 11 additions and 8 deletions
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headers/private/kernel/vm_priv.h
+3 -3
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@@ -32,9 +32,9 @@
#define RESERVED_REGION_ID -1
// page attributes (in addition to B_READ_AREA etc.)
#define PAGE_MODIFIED 64
#define PAGE_ACCESSED 128
#define PAGE_PRESENT 256
#define PAGE_MODIFIED 0x1000
#define PAGE_ACCESSED 0x2000
#define PAGE_PRESENT 0x4000
// Should only be used by vm internals
status_t vm_page_fault(addr_t address, addr_t faultAddress, bool isWrite, bool isUser, addr_t *newip);