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| author | kib <kib@FreeBSD.org> | 2010-07-05 21:13:32 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2010-07-05 21:13:32 +0000 |
| commit | 15a394fbbad37497967f317055562bc99c9e78a3 (patch) | |
| tree | 3e3d325673e269e1bed29f2e51cf834666ce009b /sys/vm/vm_page.h | |
| parent | 3b22f10bbd3187c095080cca20c4a8c47a3973b0 (diff) | |
| download | FreeBSD-src-15a394fbbad37497967f317055562bc99c9e78a3.zip FreeBSD-src-15a394fbbad37497967f317055562bc99c9e78a3.tar.gz | |
Add the ability for the allocflag argument of the vm_page_grab() to
specify the increment of vm_pageout_deficit when sleeping due to page
shortage. Then, in allocbuf(), the code to allocate pages when extending
vmio buffer can be replaced by a call to vm_page_grab().
Suggested and reviewed by: alc
MFC after: 2 weeks
Diffstat (limited to 'sys/vm/vm_page.h')
| -rw-r--r-- | sys/vm/vm_page.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/vm/vm_page.h b/sys/vm/vm_page.h index 1b2f39a..0829025 100644 --- a/sys/vm/vm_page.h +++ b/sys/vm/vm_page.h @@ -317,6 +317,11 @@ extern struct vpglocks vm_page_queue_lock; #define VM_ALLOC_NOBUSY 0x0200 /* Do not busy the page */ #define VM_ALLOC_IFCACHED 0x0400 /* Fail if the page is not cached */ #define VM_ALLOC_IFNOTCACHED 0x0800 /* Fail if the page is cached */ +#define VM_ALLOC_IGN_SBUSY 0x1000 /* vm_page_grab() only */ + +#define VM_ALLOC_COUNT_SHIFT 16 +#define VM_ALLOC_COUNT(count) ((count) << VM_ALLOC_COUNT_SHIFT) +#define VM_ALLOC_COUNT_MASK VM_ALLOC_COUNT(0xffff) void vm_page_flag_set(vm_page_t m, unsigned short bits); void vm_page_flag_clear(vm_page_t m, unsigned short bits); |
