개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

vm_page_aflag(9)

VM_PAGE_AFLAG(9)         BSD Kernel Developer's Manual        VM_PAGE_AFLAG(9)

NAME
     vm_page_aflag_clear, vm_page_aflag_set, vm_page_reference — change page
     atomic flags

SYNOPSIS
     #include <sys/param.h>
     #include <vm/vm.h>
     #include <vm/vm_page.h>

     void
     vm_page_aflag_clear(vm_page_t m, uint8_t bits);

     void
     vm_page_aflag_set(vm_page_t m, uint8_t bits);

     void
     vm_page_reference(vm_page_t m);

DESCRIPTION
     The vm_page_aflag_clear() atomically clears the specified bits on the
     page's aflags.

     The vm_page_aflag_set() atomically sets the specified bits on the page's
     aflags.

     The vm_page_reference(m) call is the same as

           vm_page_aflag_set(m, PGA_REFERENCED);

     and is the recommended way to mark the page as referenced from third-
     party kernel modules.

     These functions neither block nor require any locks to be held around the
     calls for correctness.

     The functions arguments are:

     m     The page whose aflags are updated.

     bits  The bits that are set or cleared on the page's flags.

     The following aflags can be set or cleared:

     PGA_REFERENCED  The bit may be set to indicate that the page has been
                     recently accessed.  For instance, pmap(9) sets this bit
                     to reflect the accessed attribute of the page mapping
                     typically updated by processor's memory management unit
                     on the page access.

     PGA_WRITEABLE   A writeable mapping for the page may exist.

     Both PGA_REFERENCED and PGA_WRITEABLE bits are only valid for the managed
     pages.

AUTHORS
     This manual page was written by Chad David <davidc@acns.ab.ca>.

BSD                             August 31, 2011                            BSD