SVR5

bp_mapout(D3)

bp_mapout -- deallocate virtual address space for buffer page list

Synopsis (Not in current DDI version)

   #include <sys/types.h>
   #include <sys/buf.h>
   #include <sys/ddi.h>
   
   void bp_mapout(struct buf_t *bp);

Description

The bp_mapout function deallocates the system virtual address space associated with a buffer header page list.

Arguments

bp: Pointer to the buffer header structure.

Return values

None

Usage

The virtual address space must have been allocated by a previous call to bp_mapin(D3). Drivers should not reference any virtual addresses in the mapped range after bp_mapout has been called.

Context and synchronization

Non-blockable, interrupt, user, or blockable context.

Hardware applicability

All

Version applicability

ddi: 1, 2, 3, 4, 5, 5mp, 6, 6mp, 7, 7mp, 7.1, 7.1mp

References

bp_mapin(D3), buf(D4)