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authorMichael I. Bushnell <mib@gnu.org>1994-01-13 21:00:25 +0000
committerMichael I. Bushnell <mib@gnu.org>1994-01-13 21:00:25 +0000
commit54772067a21af8495122534642ec416b8610fe23 (patch)
tree8b1bc98ec288cb4e6fa8420a742bfff6d8920879 /libpager
parentd2621ec8179cf3bf9c14bfe39e0d173ae78e6695 (diff)
Initial revision
Diffstat (limited to 'libpager')
-rw-r--r--libpager/pager-create.c9
-rw-r--r--libpager/pager-flush.c43
2 files changed, 43 insertions, 9 deletions
diff --git a/libpager/pager-create.c b/libpager/pager-create.c
index acd53beb..1a967769 100644
--- a/libpager/pager-create.c
+++ b/libpager/pager-create.c
@@ -38,13 +38,4 @@ pager_create (struct user_pager_info *upi)
p->pagemapsize = 0;
spin_lock (&pagerlistlock);
- p->next = _pager_all_pagers;
- p->prevp = &_pager_all_pagers;
- _pager_all_pagers = p;
- if (p->next)
- p->next->prevp = &p->next;
- spin_unlock (&pagerlistlock);
- return p;
-}
-
diff --git a/libpager/pager-flush.c b/libpager/pager-flush.c
new file mode 100644
index 00000000..aad86117
--- /dev/null
+++ b/libpager/pager-flush.c
@@ -0,0 +1,43 @@
+/* Functions for flushing data
+ Copyright (C) 1994 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. */
+
+
+/* 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);
+
+ lock_object (p, offset, len, MEMORY_OBJECT_RETURN_NONE, 1
+ VM_PROT_NONE, wait);
+}
+
+
+/* Have the kernel write back some pages of a pager; if WAIT is set,
+ then wait for them to be finally written before returning. */
+void
+pager_sync_some (struct pager *p, vm_address_t offset,
+ vm_size_t size, int wait)
+{
+ lock_object (p, offset, len, MEMORY_OBJECT_RETURN_DIRTY, 0
+ VM_PROT_NO_CHANGE, wait);
+}
+