diff options
| author | alc <alc@FreeBSD.org> | 2002-07-18 04:08:10 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2002-07-18 04:08:10 +0000 |
| commit | bf14f2641b55a6ad0f889aa2b0ff3240ad1cc384 (patch) | |
| tree | d36c6bd5e594479dd64d78868dd7e7d2fb35a878 /sys/vm/vm_page.h | |
| parent | cc2882c16b223d38b64f938d27b4b686d3892590 (diff) | |
| download | FreeBSD-src-bf14f2641b55a6ad0f889aa2b0ff3240ad1cc384.zip FreeBSD-src-bf14f2641b55a6ad0f889aa2b0ff3240ad1cc384.tar.gz | |
o Introduce an argument, VM_ALLOC_WIRED, that requests vm_page_alloc()
to return a wired page.
o Use VM_ALLOC_WIRED within Alpha's pmap_growkernel(). Also, because
Alpha's pmap_growkernel() calls vm_page_alloc() from within a critical
section, specify VM_ALLOC_INTERRUPT instead of VM_ALLOC_SYSTEM. (Only
VM_ALLOC_INTERRUPT is implemented entirely with a spin mutex.)
o Assert that the page queues mutex is held in vm_page_wire()
on Alpha, just like the other platforms.
Diffstat (limited to 'sys/vm/vm_page.h')
| -rw-r--r-- | sys/vm/vm_page.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/vm/vm_page.h b/sys/vm/vm_page.h index 17afdb8..fe215c0 100644 --- a/sys/vm/vm_page.h +++ b/sys/vm/vm_page.h @@ -307,11 +307,15 @@ extern struct mtx vm_page_queue_mtx; #define VM_PAGE_BITS_ALL 0xffff #endif +/* page allocation classes: */ #define VM_ALLOC_NORMAL 0 #define VM_ALLOC_INTERRUPT 1 #define VM_ALLOC_SYSTEM 2 +#define VM_ALLOC_CLASS_MASK 3 +/* page allocation flags: */ +#define VM_ALLOC_WIRED 0x20 /* vm_page_alloc() only */ #define VM_ALLOC_ZERO 0x40 -#define VM_ALLOC_RETRY 0x80 +#define VM_ALLOC_RETRY 0x80 /* vm_page_grab() only */ void vm_page_flag_set(vm_page_t m, unsigned short bits); void vm_page_flag_clear(vm_page_t m, unsigned short bits); |
