ptob(D3)ptob(D3)NAMEptob - convert size in pages to size in bytes
SYNOPSIS
#include <sys/types.h>
#include <sys/ddi.h>
ulong_t ptob(ulong_t numpages);
Arguments
numpages Size in pages to convert to equivalent size in bytes.
DESCRIPTIONptob returns the number of bytes that are contained in the specified
number of pages.
Return Values
The return value is the number of bytes in the specified number of pages.
USAGE
There is no checking done on the input value and overflow is not
detected.
In the case of a page count whose corresponding byte count cannot be
represented by a ulong_t the higher order bits are truncated.
Level
Base or Interrupt.
Synchronization Constraints
Does not sleep.
Driver-defined basic locks, read/write locks, and sleep locks may be held
across calls to this function.
Examples
If the page size is 2048, then ptob(2) returns 4096. ptob(0) returns 0.
REFERENCESbtop(D3), btopr(D3)
Page 1