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.TH "PMDISK_SUSPEND" "" "06 October 2005" "" ""

.SH NAME
pmdisk_suspend \- Atomically snapshot the system.
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int pmdisk_suspend  ( \fIvoid\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIvoid\fB\fR
no arguments
.SH "DESCRIPTION"
.PP
.PP
This must be called with interrupts disabled, to prevent the 
system changing at all from underneath us. 
.PP
To do this, we count the number of pages in the system that we 
need to save; make sure we have enough memory and swap to clone
the pages and save them in swap, allocate the space to hold them,
and then snapshot them all.