[src/trunk]: src/share/man/man9 Describe ubc_purge(9).

[rmind <rmind%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/92e955734e52
branches:  trunk
changeset: 766029:92e955734e52
user:      rmind <rmind%NetBSD.org@localhost>
date:      Tue Jun 14 00:19:20 2011 +0000

description:
Describe ubc_purge(9).

diffstat:

 share/man/man9/ubc.9 |  14 +++++++++++---
 1 files changed, 11 insertions(+), 3 deletions(-)

diffs (42 lines):

diff -r 111ad3529e3b -r 92e955734e52 share/man/man9/ubc.9
--- a/share/man/man9/ubc.9      Tue Jun 14 00:18:00 2011 +0000
+++ b/share/man/man9/ubc.9      Tue Jun 14 00:19:20 2011 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: ubc.9,v 1.6 2010/12/02 12:54:13 wiz Exp $
+.\"    $NetBSD: ubc.9,v 1.7 2011/06/14 00:19:20 rmind Exp $
 .\"
 .\" Copyright (c) 1998 Matthew R. Green
 .\" All rights reserved.
@@ -24,7 +24,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd April 14, 2010
+.Dd June 14, 2011
 .Dt UBC 9
 .Os
 .Sh NAME
@@ -38,7 +38,10 @@
 .Ft void
 .Fn ubc_release "void *va" "int flags"
 .Ft int
-.Fn ubc_uiomove "struct uvm_object *uobj" "struct uio *uio" "vsize_t todo" "int advice" "int flags"
+.Fn ubc_uiomove "struct uvm_object *uobj" "struct uio *uio" "vsize_t todo" \
+ "int advice" "int flags"
+.Ft void
+.Fn ubc_purge "struct uvm_object *uobj"
 .Sh DESCRIPTION
 .Fn ubc_alloc
 creates a kernel mapping of
@@ -113,6 +116,11 @@
 .Dv UBC_PARTIALOK
 can be provided to indicate that it is acceptable to return if an error
 occurs mid-transfer.
+.Pp
+.Fn ubc_purge
+disassociates all UBC structures from an empty UVM object,
+specified by
+.Fa uobj .
 .Sh CODE REFERENCES
 The
 .Nm