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/* Functions for flushing data
Copyright (C) 1994, 1996 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "priv.h"
/* Have the kernel flush all pages in the pager; if WAIT is set, then
wait for them to be finally expunged before returning. */
void
pager_flush (struct pager *p, int wait)
{
vm_address_t offset;
vm_size_t len;
pager_report_extent (p->upi, &offset, &len);
_pager_lock_object (p, offset, len, MEMORY_OBJECT_RETURN_NONE, 1,
VM_PROT_NO_CHANGE, wait);
}
/* Have the kernel write back some pages of a pager from OFFSET to
OFFSET+SIZE; if WAIT is set, then wait for them to be finally
written before returning. */
void
pager_flush_some (struct pager *p, vm_address_t offset,
vm_size_t size, int wait)
{
_pager_lock_object (p, offset, size, MEMORY_OBJECT_RETURN_NONE, 1,
VM_PROT_NO_CHANGE, wait);
}
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