[src/trunk]: src/share/man/man9 Document ubc_zerorange(9). Add it (and ubc_p...

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

details:   https://anonhg.NetBSD.org/src/rev/a0eb4c146bed
branches:  trunk
changeset: 822759:a0eb4c146bed
user:      pgoyette <pgoyette%NetBSD.org@localhost>
date:      Thu Apr 06 01:54:17 2017 +0000

description:
Document ubc_zerorange(9).  Add it (and ubc_purge(9)) to the MLINKS

diffstat:

 share/man/man9/Makefile |   3 ++-
 share/man/man9/ubc.9    |  12 +++++++++++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diffs (50 lines):

diff -r d70c86c8e103 -r a0eb4c146bed share/man/man9/Makefile
--- a/share/man/man9/Makefile   Thu Apr 06 00:02:19 2017 +0000
+++ b/share/man/man9/Makefile   Thu Apr 06 01:54:17 2017 +0000
@@ -1,4 +1,4 @@
-#       $NetBSD: Makefile,v 1.403 2017/03/10 09:08:47 martin Exp $
+#       $NetBSD: Makefile,v 1.404 2017/04/06 01:54:17 pgoyette Exp $
 
 #      Makefile for section 9 (kernel function and variable) manual pages.
 
@@ -899,6 +899,7 @@
        todr.9 clock_ymdhms_to_secs.9 todr.9 clock_secs_to_ymdhms.9
 
 MLINKS+=ubc.9 ubc_alloc.9 ubc.9 ubc_release.9 ubc.9 ubc_uiomove.9
+MLINKS+=ubc.9 ubc_zerorange.9 ubc.9 ubc_purge.9
 MLINKS+=uvm.9 uvm_init.9 uvm.9 uvm_init_limits.9 uvm.9 uvm_setpagesize.9 \
        uvm.9 uvm_swap_init.9 uvm.9 uvm_fault.9 \
        uvm.9 uvm_vnp_setsize.9 \
diff -r d70c86c8e103 -r a0eb4c146bed share/man/man9/ubc.9
--- a/share/man/man9/ubc.9      Thu Apr 06 00:02:19 2017 +0000
+++ b/share/man/man9/ubc.9      Thu Apr 06 01:54:17 2017 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: ubc.9,v 1.9 2016/06/01 08:17:12 wiz Exp $
+.\"    $NetBSD: ubc.9,v 1.10 2017/04/06 01:54:17 pgoyette Exp $
 .\"
 .\" Copyright (c) 1998 Matthew R. Green
 .\" All rights reserved.
@@ -41,6 +41,9 @@
 .Fn ubc_uiomove "struct uvm_object *uobj" "struct uio *uio" "vsize_t todo" \
  "int advice" "int flags"
 .Ft void
+.Fn ubc_zerorange "struct uvm_bject *uobj" "off_t off" "size_t len" \
+ "int flags"
+.Ft void
 .Fn ubc_purge "struct uvm_object *uobj"
 .Sh DESCRIPTION
 .Fn ubc_alloc
@@ -117,6 +120,13 @@
 can be provided to indicate that it is acceptable to return if an error
 occurs mid-transfer.
 .Pp
+.Fn ubc_zerorange
+sets a range of bytes in a UVM object to zero.
+The
+.Fa flags
+parameter takes the same arguments
+.Fn ubc_release .
+.Pp
 .Fn ubc_purge
 disassociates all UBC structures from an empty UVM object,
 specified by