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.

bp_mapout(9f)

bp_mapout(9F)                  Kernel Functions                  bp_mapout(9F)



NAME
       bp_mapout - deallocate virtual address space

SYNOPSIS
       #include <sys/types.h>
       #include <sys/buf.h>

       void bp_mapout(struct buf *bp);

INTERFACE LEVEL
       Architecture independent level 1 (DDI/DKI).

PARAMETERS
       bp    Pointer to the buffer header structure.


DESCRIPTION
       bp_mapout()  deallocates  system  virtual  address space allocated by a
       previous call to bp_mapin(9F).bp_mapout() should only be called on buf‐
       fers  which  have been allocated and are owned by the device driver. It
       must not be called on buffers passed to the driver through  the  strat‐
       egy(9E)  entry  point  (for example a filesystem). Because bp_mapin(9F)
       does not keep a reference count, bp_mapout() will wipe out  any  kernel
       mapping that a layer above the device driver might rely on.

CONTEXT
       bp_mapout() can be called from user context only.

SEE ALSO
       strategy(9E), bp_mapin(9F), buf(9S)


       Writing Device Drivers in Oracle Solaris 11.4



Oracle Solaris 11.4               15 Nov 1996                    bp_mapout(9F)