FreeBSD/Linux Kernel Cross Reference
sys/man/memory_object_data_write.man

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    .\" HISTORY
    .\" $Log:       memory_object_data_write.man,v $
    .\" Revision 2.5  93/05/10  19:33:47  rvb
    .\"     updated
    .\"     [93/04/21  16:08:33  lli]
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    .\" Revision 2.4  91/05/14  17:09:37  mrt
    .\"     Correcting copyright
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    .\"     Changed to new Mach copyright
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    .\" Revision 2.2  90/08/07  18:40:50  rpd
    .\"     Created.
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    .TH memory_object_data_write 2 12/19/89
    .CM 4
    .SH NAME
    .nf
    memory_object_data_write  \-  write data to paging object
    .SH SYNOPSIS
    .nf
    .ft B
    #include <mach.h>
    
    .nf
    .ft B
    kern_return_t   memory_object_data_write(memory_object, memory_control, 
                                    offset, data, data_count)
            mach_port_t     memory_object;
            mach_port_t
                            memory_control;
            vm_offset_t     offset;
            vm_offeset_t    data;
            vm_size_t       data_count;
    
    
    .fi
    .ft P
    .SH DESCRIPTION
    .B memory_object_data_write
    provides the memory manager with data that has been
    modified while cached in physical memory.  Once the memory manager no longer
    needs this data (e.g., it has been written to another storage medium),
    it should be deallocated using 
    .B vm_deallocate
    .
    
    .SH ARGUMENTS
    .TP 15
    .B
    .B memory_object
    The port that represents the memory object data, as 
    supplied to the kernel in a 
    .B vm_map
    call.
    .TP 15
    .B
    .B memory_control
    The request port to which a response is 
    requested.  [In the event that a memory object has been supplied 
    to more than one the kernel that has made the request.]
    .TP 15
    .B
    .B offset
    The offset within a memory object to which this call refers.
    This will be page aligned.
    .TP 15
    .B
    .B data
    Data which has been modified while cached in physical memory.
    .TP 15
   .B
   .B data_count
   The amount of data to be written, in bytes.
   This will be an integral number of memory object pages.
   
   .SH DIAGNOSTICS
   .TP 25
   .B KERN_SUCCESS
   Since this routine is called by the kernel, which does not
   wait for a reply message, this value is ignored.
   
   .SH SEE ALSO
   .B vm_deallocate
   

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